@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/da8a9dd0d68e512b-s.0n8i_inn0i2i9.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/94b4a5dc1fe84361-s.3wm_n5jv1to7s.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/ff5be760267bb4bc-s.3dkqd4mro2h3_.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/99596c30eb072d3c-s.2fp9tilo6sy14.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/e5864b32625b6bc3-s.0m7i6b77o5yxd.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/e285ad1a914469f0-s.15241mr5-1s6i.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Sans 3";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/47df9ba1c7236d3b-s.p.137759vg1sbmi.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Sans 3 Fallback";src:local(Arial);ascent-override:109.21%;descent-override:42.66%;line-gap-override:0.0%;size-adjust:93.76%}.source_sans_3_341b3e7f-module__VNHJTG__className{font-family:"Source Sans 3","Source Sans 3 Fallback";font-style:normal}.source_sans_3_341b3e7f-module__VNHJTG__variable{--font-source-sans:"Source Sans 3", "Source Sans 3 Fallback"}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/62492e45f348cf87-s.200fngwr9-1p7.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/8f9704ed0c18c9e0-s.1takx9ikz9d70.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/c73d4b34880585a8-s.2y9p18vgfwis7.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/f00b8cc54454926d-s.2c2xg2hj0hbwk.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/741805f5bd1ef272-s.104ommt447oe9.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url(../media/ea3421846039b7f3-s.p.23jyvdx2mwxjn.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/20aee433927f7d4b-s.3x137p1ifayze.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/256e1f7f180674ba-s.1x971o6gwfy6w.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/be3bf58b83159894-s.1ri8jgkzoo1l-.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/753b6407f468151f-s.1veyi_qwtij86.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/292081311a6a8abc-s.1t-2a-g4m3ypx.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/68d403cf9f2c68c5-s.p.20at88_q9f_kt.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Fallback";src:local(Times New Roman);ascent-override:87.87%;descent-override:28.41%;line-gap-override:0.0%;size-adjust:117.91%}.source_serif_4_bb3b3ef4-module__4wI8Da__className{font-family:"Source Serif 4","Source Serif 4 Fallback"}.source_serif_4_bb3b3ef4-module__4wI8Da__variable{--font-source-serif:"Source Serif 4", "Source Serif 4 Fallback"}
@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/ab36ba74ba67ee0c-s.0vbhejztomta0.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/33f266618f7bf8bb-s.1vqi-k1w20m2i.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/36f8835f1b5285ee-s.016_c6f56w-54.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/0fe8cf670dc7929a-s.43u5tn_wmp7tb.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/e858660d9da6747c-s.0o146vuhj0hlr.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/31a7435702a308bc-s.19n67_thuu7m9.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Source Code Pro;font-style:normal;font-weight:200 900;font-display:swap;src:url(../media/c9e42e3eae6237c2-s.p.2s-4kwv_nqb0b.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Source Code Pro Fallback;src:local(Arial);ascent-override:73.11%;descent-override:20.28%;line-gap-override:0.0%;size-adjust:134.59%}.source_code_pro_8b68ffae-module__MCUe6G__className{font-family:Source Code Pro,Source Code Pro Fallback;font-style:normal}.source_code_pro_8b68ffae-module__MCUe6G__variable{--font-source-mono:"Source Code Pro", "Source Code Pro Fallback"}
:root{--font-sans:var(--font-source-sans,"Source Sans 3"), "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;--font-serif:var(--font-source-serif,"Source Serif 4"), "Source Serif Pro", Georgia, "Times New Roman", serif;--font-mono:var(--font-source-mono,"Source Code Pro"), ui-monospace, "SFMono-Regular", Menlo, monospace;--font-display:var(--font-serif);--font-family-primary:var(--font-sans);--font-family-display:var(--font-serif);--font-size-display:2.75rem;--font-size-h1:2rem;--font-size-h2:1.5rem;--font-size-h3:1.25rem;--font-size-h4:1rem;--font-size-body-lg:1.0625rem;--font-size-body:.9375rem;--font-size-body-sm:.8125rem;--font-size-caption:.75rem;--font-size-label:.75rem;--font-size-overline:.6875rem;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.15;--line-height-snug:1.3;--line-height-normal:1.5;--line-height-relaxed:1.6;--tracking-tight:-.02em;--tracking-normal:0;--tracking-label:.04em;--tracking-overline:.12em;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-14:3.5rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--radius-none:0px;--radius-xs:2px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:12px;--radius-2xl:16px;--radius-pill:100px;--radius-full:50%;--shadow-none:none;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 12px #0000001a;--shadow-lg:0 8px 24px #0000001f;--shadow-focus:0 0 0 3px #0056d240;--z-base:0;--z-raised:10;--z-dropdown:100;--z-sticky:200;--z-overlay:300;--z-modal:400;--z-toast:500;--z-tooltip:600;--duration-instant:80ms;--duration-fast:.12s;--duration-default:.2s;--duration-slow:.3s;--duration-slower:.4s;--ease-default:ease;--ease-out:cubic-bezier(0, 0, .2, 1);--ease-in:cubic-bezier(.4, 0, 1, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--color-surface-default:#fff;--color-surface-subtle:#f8f9fa;--color-surface-raised:#fff;--color-surface-sunken:#f1f2f3;--color-surface-overlay:#00000073;--color-surface-brand:#0056d2;--color-surface-brand-light:#ebf1fb;--color-surface-brand-subtle:#d6e4f8;--color-surface-inverse:#1d1f23;--color-surface-success:#e8f5ee;--color-surface-warning:#fff3e0;--color-surface-error:#fdeceb;--color-surface-info:#ebf1fb;--color-surface-disabled:#f1f2f3;--color-content-primary:#1d1f23;--color-content-secondary:#3d4452;--color-content-tertiary:#646b7a;--color-content-disabled:#9ea4b0;--color-content-inverse:#fff;--color-content-brand:#0049b3;--color-content-brand-hover:#003d94;--color-content-success:#116c3f;--color-content-warning:#a05a00;--color-content-error:#c5200c;--color-content-info:#0049b3;--color-border-default:#e0e2e6;--color-border-subtle:#f1f2f3;--color-border-strong:#c2c6cc;--color-border-brand:#0056d2;--color-border-success:#1b9a5a;--color-border-warning:#e8850a;--color-border-error:#c5200c;--color-border-disabled:#e0e2e6;--blue-900:#002766;--blue-800:#00256b;--blue-700:#003180;--blue-600:#003d94;--blue-500:#0049b3;--blue-400:#0056d2;--blue-300:#4793df;--blue-200:#7aaee8;--blue-100:#adc9f1;--blue-50:#d6e4f8;--blue-25:#ebf1fb;--amber-700:#a05a00;--amber-600:#a05a00;--amber-500:#e8850a;--amber-100:#fac775;--amber-50:#fff3e0;--orange-600:#a05a00;--orange-500:#e8850a;--orange-100:#fac775;--orange-50:#fff3e0;--green-700:#116c3f;--green-600:#116c3f;--green-500:#1b9a5a;--green-100:#bee5d1;--green-50:#e8f5ee;--red-700:#8e1608;--red-600:#8e1608;--red-500:#c5200c;--red-100:#f5b9b4;--red-50:#fdeceb;--neutral-25:#f8f9fa;--neutral-50:#f1f2f3;--neutral-100:#e0e2e6;--neutral-200:#c2c6cc;--neutral-300:#9ea4b0;--neutral-400:#7d8494;--neutral-500:#646b7a;--neutral-600:#4f5568;--neutral-700:#3d4452;--neutral-800:#2a3040;--neutral-900:#1d1f23;--accent-50:#fff6d6;--accent-300:#ffd400;--accent-400:#ffc300;--accent-500:#ff8c00;--accent-600:#ff5f00;--accent-700:#cc4c00;--color-accent-surface:#fff6d6;--color-accent-surface-strong:#ffc300;--color-accent-border:#ff8c00;--color-accent-border-strong:#ff5f00;--color-accent-icon:#ff8c00;--color-accent-content:#cc4c00;--accent-yellow-bright:#ffd400;--accent-yellow-gold:#ffc300;--accent-orange:#ff8c00;--accent-orange-deep:#ff5f00;--bg:var(--color-surface-default);--surface:var(--color-surface-raised);--surface-2:var(--color-surface-subtle);--ink:var(--color-content-primary);--ink-2:var(--color-content-secondary);--muted:var(--color-content-tertiary);--faint:var(--color-content-disabled);--line:var(--color-border-default);--line-2:var(--color-border-subtle);--sh-sm:var(--shadow-none);--sh-md:var(--shadow-md);--sh-lg:var(--shadow-lg);--sh-blue:var(--shadow-none);--r-sm:var(--radius-sm);--r-md:var(--radius-md);--r-lg:var(--radius-lg);--r-xl:var(--radius-xl);--sidebar-w:256px;--nav-h:70px;--content-max:1180px;--serif:var(--font-serif);--sans:var(--font-sans);--mono:var(--font-mono);--lightningcss-light:initial;--lightningcss-dark: ;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--sans);background:var(--bg);color:var(--ink);text-align:left;-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:var(--font-size-body);line-height:var(--line-height-normal);direction:ltr;background-image:none}#root{height:100%}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,select,textarea{font-family:inherit}a{color:inherit;text-decoration:none}ul{list-style:none}::selection{background:var(--color-surface-brand-subtle)}h1,h2,h3,h4{font-family:var(--font-sans);font-weight:var(--font-weight-bold);letter-spacing:0}.display,.heading-editorial{font-family:var(--font-display);font-weight:var(--font-weight-bold);letter-spacing:var(--tracking-tight);line-height:var(--line-height-tight);color:var(--color-content-primary)}.display{font-size:var(--font-size-display)}.en{font-family:var(--sans);text-transform:uppercase;letter-spacing:.13em;color:var(--faint);font-size:.72em;font-weight:700}.eyebrow{font-family:var(--font-mono);font-weight:var(--font-weight-semibold);font-size:var(--font-size-overline);text-transform:uppercase;letter-spacing:var(--tracking-overline);color:var(--color-content-brand);align-items:center;gap:9px;display:inline-flex}.eyebrow:before{content:"";opacity:.55;background:currentColor;width:22px;height:1.5px}.mono{font-family:var(--font-mono);font-feature-settings:"tnum";letter-spacing:0}.label-mono{font-family:var(--font-mono);font-size:var(--font-size-label);font-weight:var(--font-weight-semibold);letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--color-content-tertiary)}.num{font-family:var(--font-mono);font-feature-settings:"lnum"}.btn{height:44px;padding:0 var(--space-4);border-radius:var(--radius-sm);font-family:var(--font-family-primary);font-weight:var(--font-weight-semibold);font-size:var(--font-size-body);letter-spacing:0;transition:background var(--duration-fast) var(--ease-default), border-color var(--duration-fast) var(--ease-default), color var(--duration-fast) var(--ease-default), box-shadow var(--duration-fast) var(--ease-default);white-space:nowrap;justify-content:center;align-items:center;gap:8px;line-height:1;display:inline-flex}.btn:active{transform:none}.btn:focus-visible{box-shadow:var(--shadow-focus);outline:none}.btn-sm{height:36px;padding:0 var(--space-3);font-size:var(--font-size-body-sm);border-radius:var(--radius-sm)}.btn-lg{height:48px;padding:0 var(--space-6);font-size:var(--font-size-body-lg)}.btn-block{width:100%}.btn-primary{background:var(--color-surface-brand);color:var(--color-content-inverse);box-shadow:var(--shadow-none)}.btn-primary:hover{background:var(--color-content-brand);box-shadow:var(--shadow-none)}.btn-accent{background:var(--color-surface-brand);color:var(--color-content-inverse);box-shadow:var(--shadow-none)}.btn-accent:hover{background:var(--color-content-brand);color:var(--color-content-inverse)}.btn-ghost{background:var(--surface);color:var(--color-content-brand);border:1px solid var(--color-border-strong)}.btn-ghost:hover{border-color:var(--color-border-brand);background:var(--color-surface-brand-light)}.btn-soft{background:var(--color-surface-brand-light);color:var(--color-content-brand)}.btn-soft:hover{background:var(--color-surface-brand-subtle)}.btn-white{background:var(--surface);color:var(--ink);border:1px solid var(--color-border-strong)}.btn-white:hover{border-color:var(--color-border-brand)}.btn-quiet{color:var(--muted);background:0 0}.btn-quiet:hover{background:var(--color-surface-subtle);color:var(--ink)}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.btn:disabled:active{transform:none}.field{margin-bottom:16px;display:block}.field label{font-family:var(--font-mono);font-size:var(--font-size-label);font-weight:var(--font-weight-semibold);color:var(--ink-2);text-transform:uppercase;letter-spacing:var(--tracking-label);margin-bottom:7px;display:block}.field label .en{font-size:11px}.input,.select{border:1px solid var(--color-border-default);border-radius:var(--radius-sm);background:var(--surface);width:100%;height:48px;color:var(--ink);font-size:15px;font-family:var(--sans);padding:0 15px;transition:border-color .15s,box-shadow .15s}textarea.input{resize:vertical;height:auto;min-height:100px;padding:12px 15px}.input::placeholder{color:var(--faint)}.input:focus,.select:focus{border-color:var(--color-border-brand);box-shadow:var(--shadow-focus);outline:none}.input-wrap{position:relative}.input-wrap .input-icon{inset-inline-start:14px;color:var(--faint);pointer-events:none;position:absolute;top:50%;transform:translateY(-50%)}.input-wrap .input-icon~.input{padding-inline-start:44px}.input-wrap .input-trail{inset-inline-end:12px;color:var(--muted);align-items:center;display:flex;position:absolute;top:50%;transform:translateY(-50%)}.tag{white-space:nowrap;letter-spacing:.02em;border:1px solid #0000;border-radius:5px;align-items:center;gap:5px;height:25px;padding:0 9px;font-size:11.5px;font-weight:700;display:inline-flex}.tag-blue{background:var(--blue-50);color:var(--blue-600);border-color:#cdd6f0}.tag-grey{background:var(--surface-2);color:var(--ink-2);border-color:var(--line)}.tag-amber{background:var(--amber-50);color:var(--amber-600);border-color:var(--amber-100)}.tag-green{background:var(--green-50);color:var(--green-600);border-color:var(--green-100)}.progress{background:var(--line);border-radius:999px;height:7px;overflow:hidden}.progress>i{background:var(--blue-500);border-radius:999px;height:100%;transition:width .5s cubic-bezier(.3,.9,.3,1);display:block}.progress.amber>i{background:var(--amber-500)}.progress.green>i{background:var(--green-500)}.progress.lg{height:10px}.card{background:var(--surface);border:1px solid var(--color-border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-none)}.row{align-items:center;display:flex}.between{justify-content:space-between;align-items:center;display:flex}.col{flex-direction:column;display:flex}.gap-4{gap:4px}.gap-6{gap:6px}.gap-8{gap:8px}.gap-10{gap:10px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.gap-24{gap:24px}.grow{flex:1}.wrap{flex-wrap:wrap}.center{justify-content:center;align-items:center;display:flex}.hidden{display:none!important}.scrim{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:80;background:#1b223675;justify-content:center;align-items:center;animation:.2s fade;display:flex;position:fixed;inset:0}@keyframes fade{0%{opacity:0}}@keyframes pop{0%{opacity:0;transform:translateY(12px)scale(.98)}}@keyframes slideUp{0%{transform:translateY(100%)}}.avatar{background:var(--blue-500);color:#fff;font-family:var(--font-sans);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:600;display:inline-flex}.mathex-motif{pointer-events:none;z-index:0;background-image:linear-gradient(#0056d20a 1px,#0000 1px),linear-gradient(90deg,#0056d20a 1px,#0000 1px);background-size:28px 28px;position:absolute;inset:0;overflow:hidden;-webkit-mask-image:radial-gradient(circle at 80% 30%,#000,#0000 72%);mask-image:radial-gradient(circle at 80% 30%,#000,#0000 72%)}.mathex-motif:before{content:"∫";font-family:var(--font-serif);color:#0056d20d;font-size:clamp(160px,22vw,300px);font-style:italic;line-height:1;position:absolute;top:50%;right:6%;transform:translateY(-50%)}.mathex-motif:after{content:"";border:1.5px solid #ff8c0047;border-radius:50%;width:220px;height:220px;position:absolute;bottom:-60px;left:-60px;box-shadow:0 0 0 1px #0056d20d}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
.brand-name{font-family:var(--font-family-primary);font-size:16.5px;font-weight:700;line-height:1.2}.nav-badge{background:var(--amber-500);color:#2a1c05;min-width:22px;height:21px;font-size:12px;font-weight:800;font-family:var(--font-family-primary);border-radius:5px;justify-content:center;align-items:center;margin-inline-start:auto;padding:0 6px;display:flex}.coursera-shell{background:var(--color-surface-default);min-height:100%}.coursera-topnav{z-index:var(--z-sticky);background:var(--color-surface-raised);border-bottom:1px solid var(--color-border-default);height:76px;position:sticky;top:0}.coursera-nav-inner{align-items:center;gap:20px;max-width:1660px;height:100%;margin:0 auto;padding:0 32px;display:flex}.coursera-brand{color:var(--color-surface-brand);letter-spacing:0;font-size:28px;font-weight:800;line-height:1}.coursera-nav-links{flex-shrink:0;align-items:center;gap:2px;display:flex}.coursera-nav-link{border-radius:var(--radius-sm);min-height:40px;color:var(--color-content-secondary);cursor:pointer;align-items:center;gap:6px;padding:0 12px;font-size:14px;font-weight:600;display:inline-flex}.coursera-nav-link:hover,.coursera-nav-link.active{color:var(--color-content-brand);background:var(--color-surface-brand-light)}.coursera-page-title{color:var(--color-content-secondary);white-space:nowrap;font-size:14px;font-weight:700;display:none}.coursera-actions{align-items:center;gap:8px;display:flex}.coursera-avatar{color:#fff;background:#06214d;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;font-size:14px;font-weight:800;display:inline-flex}.profile{position:relative}.profile-btn{cursor:pointer;border-radius:var(--radius-pill);transition:background var(--duration-fast);background:0 0;border:none;align-items:center;gap:5px;padding:3px 6px 3px 3px;display:flex}.profile-btn:hover,.profile-btn.open{background:var(--color-surface-subtle)}.profile-caret{color:var(--color-content-tertiary);transition:transform var(--duration-default) var(--ease-out)}.profile-btn.open .profile-caret{transform:rotate(180deg)}.profile-menu{top:calc(100% + 12px);background:var(--color-surface-raised);border:1px solid var(--color-border-default);border-radius:var(--radius-lg);width:256px;box-shadow:var(--shadow-md);z-index:var(--z-dropdown);opacity:0;transform-origin:100% 0;pointer-events:none;padding:6px;transition:opacity .16s,transform .22s cubic-bezier(.16,1,.3,1);position:absolute;inset-inline-end:0;transform:translateY(-8px)scale(.96)}.profile-menu.open{opacity:1;pointer-events:auto;transform:translateY(0)scale(1)}.pm-head{align-items:center;gap:12px;padding:10px 12px 12px;display:flex}.pm-id{min-width:0}.pm-name{color:var(--color-content-primary);font-size:14px;font-weight:700}.pm-mail{color:var(--color-content-tertiary);font-size:12px;font-family:var(--font-mono);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.pm-sep{background:var(--color-border-subtle);height:1px;margin:5px 4px}.pm-list{flex-direction:column;gap:1px;display:flex}.pm-item{border-radius:var(--radius-sm);width:100%;color:var(--color-content-secondary);cursor:pointer;text-align:start;transition:background var(--duration-fast), color var(--duration-fast);background:0 0;border:none;align-items:center;gap:11px;padding:9px 12px;font-size:14px;font-weight:600;display:flex}.pm-item svg{color:var(--color-content-tertiary);transition:color var(--duration-fast)}.pm-item:hover{background:var(--color-surface-subtle);color:var(--color-content-primary)}.pm-item:hover svg{color:var(--color-content-secondary)}.pm-item.danger,.pm-item.danger svg{color:var(--color-content-error)}.pm-item.danger:hover{background:var(--color-surface-error);color:var(--color-content-error)}@media (prefers-reduced-motion:reduce){.profile-menu,.profile-caret{transition:none}}.coursera-back{flex-shrink:0}.coursera-main{padding:0 32px 44px}.coursera-main>.content-wrap{max-width:1580px}.search{background:var(--surface-2);border:1.5px solid var(--line);border-radius:var(--r-sm);height:42px;color:var(--muted);align-items:center;gap:9px;min-width:260px;padding:0 14px;display:flex}.search input{color:var(--ink);background:0 0;border:none;outline:none;flex:1;font-size:14px}.icon-btn{width:42px;height:42px;color:var(--ink-2);border-radius:9px;justify-content:center;align-items:center;transition:background .14s;display:flex;position:relative}.icon-btn:hover{background:var(--line-2)}.icon-btn .dot{top:9px;background:var(--red-500);border:2px solid var(--surface);border-radius:50%;width:8px;height:8px;position:absolute;inset-inline-end:10px}.content{flex:1;padding:30px 28px;overflow-y:auto}.content-wrap{max-width:var(--content-max);margin:0 auto}.page-pad{padding:28px}.section-title{letter-spacing:0;align-items:center;gap:10px;font-size:19px;font-weight:700;display:flex}.section-sub{color:var(--muted);font-size:14px}.link{color:var(--blue-500);font-size:13.5px;font-weight:700;font-family:var(--sans)}.link:hover{text-decoration:underline}.greeting{background:var(--blue-600);color:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-blue);align-items:center;gap:20px;padding:26px 30px;display:flex;position:relative;overflow:hidden}.greeting:before{content:"∑";inset-inline-end:150px;font-family:var(--font-serif);color:#ffffff12;pointer-events:none;font-size:220px;font-style:italic;font-weight:700;line-height:1;position:absolute;top:-34px}.greeting:after{content:"";pointer-events:none;border:1px solid #ffffff29;border-radius:8px;position:absolute;inset:10px}.greeting>*{z-index:1;position:relative}.greeting h2{font-family:var(--font-serif);letter-spacing:-.02em;font-size:28px;font-weight:700}.greeting p{opacity:.9;margin-top:4px;font-size:14.5px}.greeting .pillrow{flex-wrap:wrap;gap:9px;margin-top:16px;display:flex}.greeting .gpill{background:#ffffff24;border:1px solid #ffffff29;border-radius:6px;align-items:center;gap:7px;padding:6px 12px;font-size:12.5px;font-weight:700;display:flex}:root{--accent-yellow-bright:#ffd400;--accent-yellow-gold:#ffc300;--accent-orange:#ff8c00;--accent-orange-deep:#ff5f00;--soft-sky-tint:#eef7ff;--clean-background:#f8fbff;--cool-off-white:#f1f7ff;--light-gray-rays:#e8eef7;--cloud-white:#fff;--text-cobalt-blue:#1262c8;--royal-blue:#0a4fb7;--electric-blue:#2f80ed;--ice-blue:#dceeff;--dark-navy-birds:#2e3a55}.coursera-dashboard-hero{background:radial-gradient(820px 430px at 82% -12%, #1262c81b, transparent 68%), radial-gradient(760px 380px at 11% 103%, #ff8c000e, transparent 63%), linear-gradient(180deg, #ffffffe0 0%, #f1f7ffa3 48%, #f8fbfffa 100%), var(--clean-background);isolation:isolate;margin:0 -32px;padding:48px 32px 58px;position:relative;overflow:hidden}.coursera-dashboard-hero:before{content:"";pointer-events:none;z-index:0;background:linear-gradient(115deg,#0000 0 31%,#1262c808 31.15% 31.45%,#0000 31.6% 100%),linear-gradient(150deg,#0000 0 62%,#1262c806 62.15% 62.45%,#0000 62.6% 100%),radial-gradient(520px 320px at 92% 5%,#ffffffe0 0%,#ffffff75 48%,#0000 76%);position:absolute;inset:0}.coursera-dashboard-hero:after{content:"";pointer-events:none;z-index:0;background-image:linear-gradient(#1262c80b 1px,#0000 1px),linear-gradient(90deg,#1262c80b 1px,#0000 1px);background-size:72px 72px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(circle at 62% 36%,#00000080,#0000 74%);mask-image:radial-gradient(circle at 62% 36%,#00000080,#0000 74%)}.mathex-background-elements{z-index:0;pointer-events:none;position:absolute;inset:0;overflow:hidden}.bg-glyph{top:-70px;font-family:var(--font-serif);color:#1262c80e;-webkit-user-select:none;user-select:none;font-size:300px;font-style:italic;font-weight:400;line-height:1;position:absolute;inset-inline-end:2%}.bg-orbit{inset-inline-end:-70px;border:1px solid #ff8c0029;border-radius:50%;width:260px;height:260px;position:absolute;bottom:-60px}.bg-orbit span{inset-inline-start:40px;background:var(--accent-500);border-radius:50%;width:11px;height:11px;position:absolute;top:18px;box-shadow:0 0 0 7px #ff8c001a}@media (max-width:768px){.bg-glyph{font-size:190px;inset-inline-end:-6%}.bg-orbit{display:none}}.coursera-hero-inner{z-index:1;max-width:1180px;margin:0 auto;position:relative}.coursera-course-intro{margin-bottom:34px}.coursera-upnext-card{background:#fff;border-radius:8px;grid-template-columns:minmax(320px,.9fr) minmax(360px,1fr);min-height:380px;display:grid;overflow:hidden}.coursera-upnext-copy{flex-direction:column;align-items:flex-start;padding:40px;display:flex}.coursera-upnext-copy h2{font-size:24px;line-height:1.25}.coursera-upnext-copy p{color:var(--color-content-secondary);margin-top:10px;font-size:16px}.coursera-upnext-copy .btn{margin-top:auto}.coursera-course-thumb img{object-fit:cover;width:100%;height:100%}.coursera-thumb-placeholder{color:#fff;text-align:center}.coursera-side-card{background:#fff;border-radius:18px;padding:24px}.coursera-side-card h3{margin-bottom:14px;font-size:16px}.coursera-side-card label{align-items:center;gap:10px;margin:13px 0;font-size:16px;display:flex}.coursera-side-card label span{background:var(--color-surface-disabled);width:28px;height:28px;color:var(--color-content-disabled);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.coursera-side-card p{font-size:15px;line-height:1.25}.coursera-week-days span{border:1px solid var(--color-border-default);min-width:38px;height:38px;color:var(--color-content-secondary);border-radius:4px;justify-content:center;align-items:center;display:inline-flex}.coursera-week-days span.active{color:var(--color-content-primary);border-color:var(--color-border-strong);font-weight:800}.coursera-side-card small{color:var(--color-content-tertiary);margin-bottom:14px;display:block}.coursera-below-dashboard{max-width:1180px;margin:0 auto;padding:54px 0 0}.cards-2{grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px;display:grid}.class-card{background:var(--color-surface-default,#fff);border:1px solid var(--color-border-subtle,#e2e8f0);border-radius:var(--radius-xl,12px);cursor:pointer;flex-direction:column;width:100%;max-width:350px;transition:transform .4s cubic-bezier(.175,.885,.32,1.15),box-shadow .4s cubic-bezier(.175,.885,.32,1.15),border-color .3s;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 6px -1px #0000000a,0 2px 4px -1px #00000005}.class-card:hover{border-color:var(--color-border-brand,#0056d2);transform:translateY(-6px)scale(1.025);box-shadow:0 20px 25px -5px #0000000f,0 10px 10px -5px #00000005}.cc-banner{border-bottom:1px solid var(--color-border-subtle,#f1f5f9);background-position:50%;background-size:cover;align-items:flex-end;height:180px;padding:16px;display:flex;position:relative;overflow:hidden}.cc-banner.has-thumb{background:var(--color-surface-subtle)!important}.cc-thumb{object-fit:cover;width:100%;height:100%;transition:transform .6s cubic-bezier(.16,1,.3,1);position:absolute;inset:0}.class-card:hover .cc-thumb{transform:scale(1.05)}.cc-banner.has-thumb:before{content:"";z-index:1;background:linear-gradient(#0000 40%,#00000059 100%);position:absolute;inset:0}.cc-banner:after{content:"";pointer-events:none;z-index:1;background-image:repeating-linear-gradient(135deg,#ffffff08 0 2px,#0000 2px 9px);position:absolute;inset:0}.cc-banner .cc-tags{z-index:2;gap:6px;display:flex;position:absolute;top:12px;left:12px}.cc-tags .tag{-webkit-backdrop-filter:blur(8px)!important;color:var(--color-content-secondary,#374151)!important;background:#ffffffd1!important;border:1px solid #fff6!important;border-radius:9999px!important;padding:4px 10px!important;font-size:11px!important;font-weight:600!important;box-shadow:0 1px 2px #00000008!important}.cc-banner .cc-status-badge{z-index:2;position:absolute;top:12px;right:12px}.cc-status-badge .status-badge{-webkit-backdrop-filter:blur(8px);color:#11663b;background:#e8f5eee0;border:1px solid #11663b33;border-radius:9999px;align-items:center;gap:4px;padding:4px 10px;font-size:11px;font-weight:700;display:flex;box-shadow:0 1px 2px #00000008}.cc-banner .cc-glyph{inset-inline-end:16px;z-index:1;color:#ffffffeb;font-size:64px;font-weight:700;line-height:1;font-family:var(--font-family-primary);position:absolute;top:4px}.cc-banner.has-thumb .cc-glyph{display:none}.cc-body{flex-direction:column;flex:1;gap:12px;padding:20px;display:flex}.cc-title{font-family:var(--font-family-primary);color:var(--color-content-primary,#1d1f23);font-size:18px;font-weight:700;line-height:1.35}.cc-teacher{color:var(--color-content-tertiary,#646b7a);margin-top:4px;font-size:12.5px;font-weight:500}.cc-stats{color:var(--color-content-secondary,#3d4452);gap:16px;font-size:13px;display:flex}.cc-stats b{color:var(--color-content-primary,#1d1f23);font-weight:700}.cc-prog-row{color:var(--color-content-tertiary,#646b7a);text-transform:uppercase;letter-spacing:.04em;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:12px;font-weight:600;display:flex}.cc-foot{align-items:center;gap:10px;margin-top:auto;padding-top:8px;display:flex}.cc-foot .btn{justify-content:center;align-items:center;gap:6px;transition:transform .2s,box-shadow .2s;display:inline-flex}.cc-foot .btn svg{transition:transform .2s}.cc-foot .btn:hover svg{transform:translate(4px)}.cc-lesson-preview{color:var(--color-content-brand,#0056d2);background:var(--color-surface-brand-light,#ebf1fb);border:1px solid var(--color-surface-brand-subtle,#d6e4f8);border-radius:var(--radius-md,6px);align-items:center;gap:8px;padding:8px 12px;font-size:13px;font-weight:600;display:flex}.cc-enroll-btn{transition:transform .2s cubic-bezier(.34,1.56,.64,1),box-shadow .2s}.cc-enroll-btn:hover{transform:scale(1.02);box-shadow:0 4px 12px #0056d22e}.cc-code-entry{background:var(--color-surface-subtle,#f8f9fa);border-radius:var(--radius-lg,8px);border:1px solid var(--color-border-default,#e2e8f0);flex-direction:column;gap:8px;padding:10px;animation:.3s cubic-bezier(.16,1,.3,1) ccSlideDown;display:flex}@keyframes ccSlideDown{0%{opacity:0;max-height:0;transform:translateY(-6px)}to{opacity:1;max-height:150px;transform:translateY(0)}}.cc-code-input{border-color:var(--color-border-default)!important;border-radius:var(--radius-md,6px)!important;background:var(--color-surface-default,#fff)!important;height:42px!important}.cc-code-input:focus{border-color:var(--color-border-brand,#0056d2)!important;box-shadow:var(--shadow-focus)!important}.cc-code-actions{gap:8px;display:flex}.class-detail-hero{background-position:50%;background-size:cover;align-items:flex-end;height:170px;padding:16px;display:flex;position:relative;overflow:hidden}.class-detail-hero img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.class-detail-hero.has-thumb:after{content:"";background:linear-gradient(#0000000f,#00000075);position:absolute;inset:0}.class-detail-hero.has-thumb>span{display:none}.strip{scrollbar-width:thin;gap:16px;padding-bottom:6px;display:flex;overflow-x:auto}.strip>*{flex:0 0 300px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}.panel-head{border-bottom:1px solid var(--line-2);justify-content:space-between;align-items:center;padding:16px 18px 12px;display:flex}.panel-head h3{font-size:15px;font-weight:700;font-family:var(--font-family-primary);align-items:center;gap:8px;display:flex}.panel-body{padding:8px 14px 14px}.quiz-due{border-radius:var(--r-md);background:var(--amber-50);border:1px solid var(--amber-100);align-items:center;gap:12px;margin:4px 4px 10px;padding:13px;display:flex}.quiz-due .qd-ico{background:var(--amber-500);color:#2a1c05;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.qd-meta{flex:1;min-width:0}.qd-title{font-size:14px;font-weight:700}.qd-sub{color:var(--amber-600);font-size:12px;font-weight:600}.feed-item{border-bottom:1px solid var(--line-2);gap:12px;padding:12px 6px;display:flex}.feed-item:last-child{border-bottom:none}.feed-ico{border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.feed-txt{flex:1;font-size:13.5px;line-height:1.45}.feed-txt b{font-weight:800}.feed-time{color:var(--faint);font-size:11px;font-weight:600;font-family:var(--font-mono);letter-spacing:0;margin-top:2px}.news-item{border-bottom:1px solid var(--line-2);align-items:center;gap:10px;padding:11px 6px;font-size:13.5px;display:flex}.news-item:last-child{border-bottom:none}.news-dot{background:var(--blue-500);border-radius:50%;flex-shrink:0;width:7px;height:7px}.lesson-list{flex-direction:column;display:flex}.lesson-row{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);cursor:pointer;align-items:center;gap:14px;margin-bottom:11px;padding:15px 16px;transition:box-shadow .16s,border-color .16s,transform .12s;display:flex}.lesson-row:hover{box-shadow:var(--sh-sm);border-color:var(--blue-100)}.lesson-row.current{border-color:var(--blue-400);background:var(--blue-50);box-shadow:0 0 0 3px var(--blue-50)}.lesson-row.locked{background:var(--surface-2);cursor:not-allowed;opacity:.82}.lesson-row.locked:hover{box-shadow:none;border-color:var(--line);transform:none}.lr-num{background:var(--surface-2);width:44px;height:44px;color:var(--muted);font-size:17px;font-weight:700;font-family:var(--font-family-primary);border:1px solid var(--line);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.lr-num.done{background:var(--green-100);color:var(--green-600);border-color:#0000}.lr-num.current{background:var(--blue-500);color:#fff;border-color:#0000}.lr-num.locked{background:var(--surface-2);color:var(--faint)}.lr-main{flex:1;min-width:0}.lr-title{font-size:15.5px;font-weight:600;font-family:var(--font-family-primary);letter-spacing:0}.lr-meta{color:var(--muted);flex-wrap:wrap;gap:14px;margin-top:4px;font-size:12.5px;font-weight:600;display:flex}.lr-trail{flex-shrink:0;align-items:center;gap:10px;display:flex}.score-badge{background:var(--green-50);color:var(--green-600);border:1px solid var(--green-100);border-radius:5px;align-items:center;gap:4px;padding:4px 10px;font-size:12.5px;font-weight:800;display:inline-flex}.score-badge.low{background:var(--orange-50);color:var(--orange-600);border-color:var(--orange-100)}.video-stage{aspect-ratio:16/9;border-radius:var(--r-lg);background:#11151f;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.video-stage .vplaceholder{color:#ffffff80;flex-direction:column;align-items:center;gap:12px;display:flex}.vbig-play{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#fff;cursor:pointer;background:#ffffff24;border:1.5px solid #fff6;border-radius:50%;justify-content:center;align-items:center;width:78px;height:78px;transition:transform .15s,background .15s;display:flex}.vbig-play:hover{background:#ffffff38;transform:scale(1.06)}.watermark{color:#fffffff2;pointer-events:none;white-space:nowrap;z-index:10;text-shadow:0 1px 3px #000c;font-size:13.5px;font-weight:700;font-family:var(--font-family-primary);background:#00000073;border:1px solid #ffffff26;border-radius:6px;padding:5px 10px;transition:top 1.4s,inset-inline-start 1.4s;position:absolute}.vstage-center-overlay{z-index:4;cursor:pointer;background:#0003;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.vcontrols-overlay{color:#fff;z-index:6;opacity:0;pointer-events:none;background:linear-gradient(#0000,#000000d9);flex-direction:column;gap:12px;padding:24px 16px 14px;transition:opacity .25s;display:flex;position:absolute;bottom:0;left:0;right:0}.vcontrols-overlay.visible{opacity:1;pointer-events:auto}.vcontrols-progress-container{cursor:pointer;align-items:center;width:100%;height:12px;display:flex}.vcontrols-progress-bar{background:#ffffff40;border-radius:2px;width:100%;height:4px;transition:height .15s;position:relative}.vcontrols-progress-container:hover .vcontrols-progress-bar{height:6px}.vcontrols-progress-fill{background:var(--accent-500);border-radius:2px;width:0%;height:100%}.vcontrols-row{justify-content:space-between;align-items:center;display:flex}.vcontrols-group{align-items:center;gap:16px;display:flex}.vcontrol-btn{color:#ffffffd9;cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;transition:color .15s,background-color .15s;display:flex}.vcontrol-btn:hover{color:#fff;background-color:#ffffff26}.vcontrol-btn.skip-btn{gap:4px;padding:4px 6px}.vcontrol-lbl{font-size:11px;font-weight:700}.vcontrols-time{color:#fffc;font-size:13px;font-weight:600;font-family:var(--font-family-primary)}.vcontrols-volume{align-items:center;gap:8px;display:flex}.vcontrols-volume-slider{-webkit-appearance:none;cursor:pointer;background:#ffffff40;border-radius:2px;outline:none;width:60px;height:4px;transition:width .2s}.vcontrols-volume-slider::-webkit-slider-runnable-track{border-radius:2px;height:4px}.vcontrols-volume-slider::-webkit-slider-thumb{-webkit-appearance:none;background:#fff;border-radius:50%;width:10px;height:10px;margin-top:-3px}.vcontrols-volume:hover .vcontrols-volume-slider{width:80px}.video-stage:fullscreen{aspect-ratio:auto!important;border-radius:0!important;width:100%!important;height:100%!important}.video-stage:fullscreen video{object-fit:contain!important}.vcontrols{color:#fff;z-index:5;background:linear-gradient(#0000,#000000b3);align-items:center;gap:13px;padding:14px 16px 13px;display:flex;position:absolute;bottom:0;left:0;right:0}.vbar{background:#ffffff47;border-radius:999px;flex:1;height:4px;overflow:hidden}.vbar>i{background:var(--accent-500);border-radius:999px;height:100%;display:block}.vtime{font-size:12.5px;font-weight:600;font-family:var(--font-mono)}.block-screen{color:#fff;text-align:center;z-index:6;background:#11151f;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:28px;display:flex;position:absolute;inset:0}.quiz-shell{max-width:720px;margin:0 auto}.quiz-head{align-items:center;gap:16px;margin-bottom:8px;display:flex}.timer{border-radius:var(--r-sm);background:var(--surface);border:1.5px solid var(--line);height:38px;font-size:15px;font-weight:700;font-family:var(--font-mono);align-items:center;gap:7px;padding:0 14px;display:inline-flex}.timer.warn{background:var(--red-50);border-color:var(--red-100);color:var(--red-600)}.q-counter{color:var(--ink-2);font-size:15px;font-weight:800}.q-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);padding:28px}.q-text{font-family:var(--font-serif);letter-spacing:-.01em;letter-spacing:0;margin-bottom:22px;font-size:23px;font-weight:600;line-height:1.4}.opts-grid{grid-template-columns:1fr 1fr;gap:13px;display:grid}.opts-stack{flex-direction:column;gap:12px;display:flex}.opt{border-radius:var(--r-md);border:1.5px solid var(--line);background:var(--surface);cursor:pointer;text-align:start;align-items:center;gap:13px;padding:16px 17px;font-size:15.5px;font-weight:600;transition:all .14s;display:flex}.opt:hover{border-color:var(--blue-400);background:var(--blue-50)}.opt .opt-key{background:var(--surface-2);width:34px;height:34px;color:var(--ink-2);font-weight:700;font-family:var(--font-family-primary);border:1px solid var(--line);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;transition:all .14s;display:flex}.opt.sel{border-color:var(--blue-500);background:var(--blue-50);box-shadow:0 0 0 3px var(--blue-50)}.opt.sel .opt-key{background:var(--blue-500);color:#fff;border-color:#0000}.opt.correct{border-color:var(--green-500);background:var(--green-50)}.opt.correct .opt-key{background:var(--green-500);color:#fff;border-color:#0000}.opt.wrong{border-color:var(--red-500);background:var(--red-50)}.opt.wrong .opt-key{background:var(--red-500);color:#fff;border-color:#0000}.tf-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.tf-btn{border-radius:var(--r-md);border:1.5px solid var(--line);height:88px;font-size:20px;font-weight:700;font-family:var(--font-family-primary);background:var(--surface);justify-content:center;align-items:center;gap:10px;transition:all .14s;display:flex}.tf-btn.t:hover,.tf-btn.t.sel{border-color:var(--green-500);background:var(--green-50);color:var(--green-600)}.tf-btn.f:hover,.tf-btn.f.sel{border-color:var(--red-500);background:var(--red-50);color:var(--red-600)}.q-image{border-radius:var(--r-md);border:1px solid var(--line);width:100%;margin-bottom:18px;overflow:hidden}.result-score{font-family:var(--font-mono);letter-spacing:0;font-size:84px;font-weight:600;line-height:1}.confetti-piece{border-radius:1px;width:8px;height:13px;animation:2.4s linear forwards confettiFall;position:absolute}@keyframes confettiFall{0%{opacity:1;transform:translateY(-20px)rotate(0)}to{opacity:0;transform:translateY(420px)rotate(540deg)}}.stat-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);cursor:pointer;flex-direction:column;gap:12px;padding:18px;transition:transform .15s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.stat-card:before{content:"";background:var(--line);height:3px;position:absolute;top:0;left:0;right:0}.stat-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}.stat-card .st-ico{border-radius:10px;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.stat-card .st-num{font-family:var(--font-mono);letter-spacing:0;font-size:38px;font-weight:600;line-height:1}.stat-card .st-label{color:var(--ink-2);font-size:13.5px;font-weight:700}.stat-card .st-cta{color:var(--blue-500);text-transform:uppercase;letter-spacing:.04em;align-items:center;gap:4px;margin-top:auto;font-size:12px;font-weight:800;display:flex}.stat-card.alert{border-color:var(--amber-100)}.stat-card.alert:before{background:var(--amber-500)}.qa-grid{grid-template-columns:repeat(4,1fr);gap:13px;display:grid}.qa-btn{background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-md);flex-direction:column;align-items:flex-start;gap:10px;padding:16px;transition:all .15s;display:flex}.qa-btn:hover{border-color:var(--blue-400);background:var(--blue-50);transform:translateY(-2px)}.qa-btn .qa-ico{background:var(--blue-50);width:38px;height:38px;color:var(--blue-500);border-radius:9px;justify-content:center;align-items:center;display:flex}.qa-btn span{font-size:14px;font-weight:700}.tbl-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);-webkit-overflow-scrolling:touch;overflow-x:auto}.tbl{border-collapse:collapse;width:100%}.tbl th{text-align:start;font-family:var(--font-mono);color:var(--muted);background:var(--surface-2);border-bottom:1px solid var(--line);white-space:nowrap;text-transform:uppercase;letter-spacing:.05em;padding:13px 16px;font-size:10.5px;font-weight:600}.tbl td{border-bottom:1px solid var(--line-2);padding:14px 16px;font-size:14px}.tbl tr:last-child td{border-bottom:none}.tbl tr:hover td{background:var(--surface-2)}.code-pill{background:var(--blue-50);color:var(--blue-600);font-size:13.5px;font-weight:600;font-family:var(--font-mono);letter-spacing:1px;border:1px solid #cdd6f0;border-radius:6px;align-items:center;gap:8px;padding:5px 11px;display:inline-flex}.copy-btn{color:var(--blue-500);align-items:center;display:flex}.copy-btn:hover{color:var(--blue-600)}.status-badge{border-radius:5px;align-items:center;gap:5px;padding:4px 10px;font-size:12px;font-weight:800;display:inline-flex}.sb-green{background:var(--green-50);color:var(--green-600)}.sb-amber{background:var(--amber-50);color:var(--amber-600)}.sb-grey{background:var(--surface-2);color:var(--muted)}.sb-red{background:var(--red-50);color:var(--red-600)}.summary-bar{flex-wrap:wrap;gap:10px;display:flex}.summary-chip{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);box-shadow:var(--sh-sm);align-items:center;gap:8px;padding:9px 15px;font-size:13.5px;font-weight:700;display:flex}.summary-chip b{font-size:18px;font-weight:600;font-family:var(--font-mono)}.filter-tabs{background:var(--surface-2);border-radius:var(--r-sm);border:1px solid var(--line);gap:4px;padding:4px;display:flex}.filter-tab{color:var(--muted);border-radius:5px;padding:8px 14px;font-size:13px;font-weight:700;transition:all .14s}.filter-tab.active{background:var(--surface);color:var(--blue-600);box-shadow:var(--sh-sm)}.modal{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-lg);flex-direction:column;width:440px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 48px);animation:.24s cubic-bezier(.2,.9,.3,1) pop;display:flex;position:relative;overflow:hidden}.modal>form{flex-direction:column;flex:auto;min-height:0;display:flex}.modal-head{flex-shrink:0;padding:24px 24px 4px}.modal-head h3{letter-spacing:0;font-size:21px;font-weight:600}.modal-body{flex:auto;min-height:0;padding:16px 24px;overflow-y:auto}.modal-foot{flex-shrink:0;gap:10px;padding:14px 24px 22px;display:flex}.modal-close{inset-inline-end:16px;z-index:2;position:absolute;top:16px}.sheet{background:var(--surface);box-shadow:var(--sh-lg);z-index:90;border-radius:18px 18px 0 0;padding:8px 20px 26px;animation:.28s cubic-bezier(.2,.9,.3,1) slideUp;position:fixed;bottom:0;left:0;right:0}.sheet-grab{background:var(--line);border-radius:999px;width:42px;height:5px;margin:8px auto 16px}.tabbar{display:none}.toast{background:var(--ink);color:#fff;border-radius:var(--r-md);z-index:200;box-shadow:var(--sh-lg);align-items:center;gap:9px;padding:12px 20px;font-size:14px;font-weight:700;animation:.2s pop;display:flex;position:fixed;bottom:26px;left:50%;transform:translate(-50%)}.coursera-welcome{color:var(--color-content-primary);flex-wrap:wrap;align-items:center;gap:14px;font-size:18px;font-weight:700;display:flex}.student-id-badge{border-radius:var(--radius-pill);color:var(--color-content-brand);cursor:pointer;transition:all var(--duration-fast) var(--ease-default);background:#ffffffb3;border:1px solid #0056d226;align-items:center;gap:6px;padding:4px 12px;font-size:13px;font-weight:700;display:inline-flex}.student-id-badge:hover{border-color:var(--color-border-brand);background:#fffffff2}.coursera-course-intro h1{max-width:900px;margin-top:14px;font-size:clamp(28px,3vw,42px);line-height:1.16;text-decoration:underline}.coursera-progress-row{color:var(--color-content-secondary);align-items:center;gap:12px;margin-top:20px;font-size:15px;display:flex}.coursera-mini-progress{background:#aab9cb;border:1px solid #3d445259;border-radius:999px;width:min(360px,45vw);height:9px;overflow:hidden}.coursera-mini-progress i{background:var(--color-content-success);height:100%;display:block}.coursera-dashboard-grid{grid-template-columns:minmax(0,1fr) 340px;align-items:stretch;gap:20px;display:grid}.coursera-upnext-card{border:1px solid var(--color-border-default);min-height:250px;box-shadow:var(--shadow-sm);transition:border-color var(--duration-default) var(--ease-default), box-shadow var(--duration-default) var(--ease-default);background:#fff;border-radius:16px;grid-template-columns:360px 1fr;display:grid;overflow:hidden}.coursera-upnext-card:hover{border-color:var(--color-border-strong);box-shadow:var(--shadow-md)}.coursera-upnext-copy{flex-direction:column;justify-content:center;align-items:flex-start;padding:24px 32px;display:flex}.coursera-upnext-copy h2{font-size:20px;font-weight:700;line-height:1.3}.coursera-upnext-copy p{color:var(--color-content-secondary);margin-top:8px;margin-bottom:18px;font-size:14.5px}.coursera-course-thumb{justify-content:center;align-items:center;min-height:100%;display:flex;position:relative;overflow:hidden}.coursera-course-thumb img{object-fit:cover;width:100%;height:100%;transition:transform var(--duration-slow) var(--ease-default)}.coursera-upnext-card:hover .coursera-course-thumb img{transform:scale(1.03)}.coursera-thumb-play-overlay{transition:background var(--duration-default) var(--ease-default);z-index:2;background:#00000026;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.coursera-upnext-card:hover .coursera-thumb-play-overlay{background:#00000040}.coursera-play-circle{width:56px;height:56px;box-shadow:var(--shadow-md);color:var(--color-surface-brand);transition:transform var(--duration-fast) var(--ease-spring);background:#fff;border-radius:50%;justify-content:center;align-items:center;display:flex}.coursera-upnext-card:hover .coursera-play-circle{transform:scale(1.1)}.coursera-thumb-subtitle-overlay{color:#fff;z-index:3;text-align:center;background:linear-gradient(#0000 0%,#000000bf 100%);padding:12px 16px;font-size:13px;font-weight:500;position:absolute;bottom:0;left:0;right:0}.coursera-thumb-placeholder{color:#fff;text-align:center;z-index:1;position:relative}.coursera-thumb-placeholder span{font-size:112px;font-weight:800;line-height:.9;display:block}.coursera-thumb-placeholder b{margin-top:18px;font-size:28px;display:block}.coursera-goal-stack{flex-direction:column;gap:16px;display:flex}.coursera-side-card{border:1px solid var(--color-border-default);box-shadow:var(--shadow-sm);transition:border-color var(--duration-default) var(--ease-default), box-shadow var(--duration-default) var(--ease-default);background:#fff;border-radius:16px;padding:24px}.coursera-side-card:hover{border-color:var(--color-border-strong);box-shadow:var(--shadow-md)}.coursera-side-card h3{color:var(--color-content-primary);margin-bottom:16px;font-size:17px;font-weight:700}.coursera-goal-item{color:var(--color-content-secondary);align-items:center;gap:12px;margin-top:16px;font-size:15px;font-weight:500;display:flex}.coursera-goal-item svg.star-complete{color:#ffb800}.coursera-goal-item svg.star-incomplete{color:var(--color-content-tertiary);opacity:.6}.coursera-side-card p{color:var(--color-content-secondary);font-size:14px;line-height:1.4}.coursera-week-days{flex-wrap:wrap;gap:8px;margin:16px 0 12px;display:flex}.coursera-week-days span{border:1px solid var(--color-border-default);min-width:36px;height:36px;color:var(--color-content-secondary);transition:all var(--duration-fast) var(--ease-default);border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:inline-flex}.coursera-week-days span.active{background:var(--color-surface-brand-light);color:var(--color-surface-brand);border-color:var(--color-border-brand);box-shadow:var(--shadow-sm);font-weight:700}.coursera-side-card small{color:var(--color-content-tertiary);margin-top:12px;font-size:12.5px;display:block}.coursera-below-dashboard{padding:54px 0 0}.goo{filter:url(#goo)}.l2{width:150px;height:90px;position:relative}.l2 i{background:var(--color-surface-brand,#0056d2);border-radius:50%;width:46px;height:46px;margin-top:-23px;position:absolute;top:50%}.l2 i:first-child{animation:2.2s ease-in-out infinite m2a;left:8px}.l2 i:nth-child(2){animation:2.2s ease-in-out infinite m2b;right:8px}@keyframes m2a{0%,to{transform:translate(0)scale(1)}50%{transform:translate(40px)scale(.7)}}@keyframes m2b{0%,to{transform:translate(0)scale(1)}50%{transform:translate(-40px)scale(.7)}}@media (prefers-reduced-motion:reduce){.l2 i{animation:none!important}}.panel,.lesson-row,.q-card,.stat-card,.qa-btn,.tbl-wrap,.summary-chip{box-shadow:var(--shadow-none)}.brand-name,.section-title,.panel-head h3,.cc-title,.lr-title,.q-text,.stat-card .st-num,.summary-chip b{font-family:var(--font-family-primary);letter-spacing:0}.tabbar{background:color-mix(in srgb, var(--color-surface-raised) 94%, transparent);border-color:var(--color-border-default)}.search,.filter-tabs,.auth-tabs{border:1px solid var(--color-border-default);border-radius:var(--radius-sm);background:var(--color-surface-subtle)}.icon-btn{border-radius:var(--radius-full)}.icon-btn:focus-visible,.filter-tab:focus-visible,.tab:focus-visible{box-shadow:var(--shadow-focus);outline:none}.panel,.lesson-row,.q-card,.tbl-wrap,.modal,.summary-chip{border-color:var(--color-border-default);border-radius:var(--radius-lg)}.modal{box-shadow:var(--shadow-lg)}.stat-card,.qa-btn{border-color:var(--color-border-default);border-radius:var(--radius-lg)}.lesson-row:hover,.stat-card:hover,.qa-btn:hover{box-shadow:var(--shadow-none);border-color:var(--color-border-brand);transform:none}.lesson-row.current,.opt.sel{border-color:var(--color-border-brand);background:var(--color-surface-brand-light);box-shadow:var(--shadow-focus)}.nav-badge,.score-badge,.status-badge,.code-pill,.summary-chip,.tag{border-radius:var(--radius-pill);letter-spacing:0}.tbl th{background:var(--color-surface-subtle);color:var(--color-content-tertiary);letter-spacing:0}.toast{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:var(--z-toast)}.coursera-main.fluid{padding:0 0 44px}.coursera-main.fluid>.content-wrap.fluid{max-width:100%}.dashboard-actions,.dashboard-toolbar,.lesson-video-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.dashboard-toolbar{justify-content:space-between;margin-bottom:18px}.dashboard-toolbar .search{min-width:min(360px,100%)}.grade-filter{flex-direction:column;gap:6px;min-width:160px;display:flex}.grade-filter>span{color:var(--muted);font-size:12px;font-weight:700}.grade-filter.compact{min-width:145px}.grade-filter.compact .select{height:38px;font-size:13px;font-weight:700}.dashboard-state,.dashboard-empty{border:1px dashed var(--line);border-radius:var(--r-lg);text-align:center;min-height:220px;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;padding:36px 24px;display:flex}.dashboard-state p{margin-top:8px;font-size:14px}.dashboard-empty-icon{background:var(--blue-50);width:52px;height:52px;color:var(--blue-600);border-radius:50%;place-items:center;margin-bottom:14px;display:grid}.dashboard-empty h3{color:var(--ink);margin-bottom:6px;font-size:18px}.dashboard-empty p{max-width:480px;font-size:14px;line-height:1.6}.btn-danger{background:var(--red-500);color:#fff;border-color:var(--red-500)}.confirm-head{align-items:flex-start;gap:13px;display:flex}.confirm-head p{color:var(--muted);margin-top:5px;font-size:13.5px;line-height:1.55}.confirm-icon{border-radius:50%;flex:none;place-items:center;width:42px;height:42px;display:grid}.confirm-icon.danger{background:var(--red-50);color:var(--red-500)}.confirm-icon.warning{background:var(--amber-50);color:var(--amber-600)}.action-panel-backdrop{z-index:80;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#10182847;justify-content:flex-end;display:flex;position:fixed;inset:0}.action-panel{background:var(--surface);border-left:1px solid var(--line);flex-direction:column;width:min(100%,980px);height:100%;display:flex;box-shadow:-18px 0 44px #1018282e}.action-panel-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:16px;padding:20px 22px 16px;display:flex}.action-panel-head h3{margin-top:4px;font-size:21px;font-weight:700}.action-panel-head p{max-width:680px;color:var(--muted);margin-top:5px;font-size:13.5px;line-height:1.55}.action-panel-body{flex:1;min-height:0;padding:18px 22px 24px;overflow:auto}.action-panel-foot{border-top:1px solid var(--line);background:var(--surface);gap:10px;padding:14px 22px;display:flex}.studio-command{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-sm);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;margin-bottom:18px;padding:16px 18px;display:grid}.studio-command h3{margin-top:4px;font-size:19px}.studio-command p{color:var(--muted);margin-top:5px;font-size:13.5px;line-height:1.55}.studio-command-stats{grid-template-columns:repeat(3,minmax(72px,1fr));gap:8px;display:grid}.studio-command-stats div{border:1px solid var(--line-2);border-radius:var(--r-md);background:var(--surface-2);text-align:center;padding:11px 12px}.studio-command-stats b{font-family:var(--mono);font-size:19px;display:block}.studio-command-stats span{color:var(--muted);text-transform:uppercase;font-size:11.5px;font-weight:700}.studio-tabs{border:1px solid var(--line);background:var(--surface-2);border-radius:var(--r-md);gap:4px;width:fit-content;margin-bottom:18px;padding:4px;display:flex}.studio-tabs button{border-radius:var(--r-sm);color:var(--muted);padding:9px 15px;font-size:13px;font-weight:700}.studio-tabs button.active{background:var(--surface);color:var(--blue-600);box-shadow:var(--sh-sm)}.studio-detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.studio-detail-grid>div{border:1px solid var(--line-2);border-radius:var(--r-md);flex-direction:column;gap:5px;padding:14px;display:flex}.studio-detail-grid .full{grid-column:1/-1}.studio-detail-grid span{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px}.studio-preview-grid{grid-template-columns:minmax(240px,.8fr) minmax(0,1.4fr);align-items:start;gap:18px;display:grid}.studio-student-card{padding:16px}.studio-student-card h2{margin-top:15px;font-size:22px}.studio-student-card p{color:var(--muted);margin:7px 0 15px;line-height:1.6}.studio-preview-lesson{text-align:left;border:1px solid var(--line-2);border-radius:var(--r-md);grid-template-columns:auto 1fr auto;align-items:center;gap:12px;width:100%;padding:12px;display:grid}.studio-preview-lesson.active{border-color:var(--blue-300);background:var(--blue-50)}.studio-preview-lesson span:nth-child(2){flex-direction:column;gap:3px;display:flex}.studio-preview-lesson small{color:var(--muted)}.studio-video-preview{aspect-ratio:16/9;border-radius:var(--r-md);color:#fff;text-align:center;background:#10131a;place-items:center;display:grid;overflow:hidden}.studio-video-preview video,.lesson-editor-video{border-radius:var(--r-md);background:#10131a;width:100%;max-height:340px;display:block}.upload-status{border-radius:var(--r-md);background:var(--blue-50);color:var(--blue-700);gap:7px;margin-top:9px;padding:11px 12px;display:grid}.upload-status .between span{align-items:center;gap:7px;font-weight:700;display:flex}.upload-status.success{background:var(--green-50);color:var(--green-600)}.upload-status.error{background:var(--red-50);color:var(--red-500)}.input.read-only{color:var(--muted);background:var(--surface-2);align-items:center;display:flex}.studio-preview-audience{flex-wrap:wrap}.studio-preview-audience .filter-tab{align-items:center;gap:6px;display:inline-flex}.studio-preview-locked{background:var(--surface-2)}.studio-preview-locked .lr-num{background:var(--surface);color:var(--muted)}.lesson-editor-body{flex-direction:column;gap:18px;display:flex}.lesson-editor-section{border:1px solid var(--line-2);border-radius:var(--r-md);background:var(--surface);flex-direction:column;gap:12px;padding:16px;display:flex}.lesson-editor-section .field{margin-bottom:0}.lesson-editor-section-head{color:var(--ink);flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;font-weight:700;display:flex}.lesson-editor-section-head svg{color:var(--blue-500);flex-shrink:0}.lesson-editor-section-head small{color:var(--muted);flex-basis:100%;font-size:12px;font-weight:600}.lesson-editor-fields{grid-template-columns:1fr 1fr;gap:12px;display:grid}.lesson-video-frame{aspect-ratio:16/9;border-radius:var(--r-md);background:#10131a;place-items:center;width:100%;max-height:320px;display:grid;overflow:hidden}.lesson-video-frame .lesson-editor-video{object-fit:contain;width:100%;height:100%;max-height:none}.lesson-video-empty{color:#ffffffb8;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:16px;font-size:13.5px;display:flex}.lesson-video-empty svg{opacity:.8}.btn.is-disabled{opacity:.55;pointer-events:none}@media (max-width:560px){.lesson-editor-fields{grid-template-columns:1fr}}.question-order-actions{flex-direction:column;gap:2px;display:flex}.question-order-actions .icon-btn{width:28px;height:26px}.question-explanation-editor{background:var(--blue-50);border:1px solid var(--blue-100);border-radius:var(--r-md);margin-top:18px;padding:16px}.question-explanation-editor h4{font-size:15px}.question-explanation-editor>div:first-child p{color:var(--muted);margin:3px 0 14px;font-size:12.5px}.explanation-upload{border:1.5px dashed var(--blue-200);border-radius:var(--r-md);min-height:72px;color:var(--blue-600);cursor:pointer;justify-content:center;align-items:center;gap:8px;font-weight:700;display:flex}.explanation-image-preview{align-items:center;gap:12px;display:flex}.explanation-image-preview img{object-fit:contain;border-radius:var(--r-sm);background:#fff;width:120px;max-height:90px}.quiz-preview-body{gap:18px;display:grid}.quiz-preview-body h2{font-size:20px;line-height:1.5}.quiz-preview-image{object-fit:contain;border-radius:var(--r-md);width:100%;max-height:240px}.teacher-answer-key{border-radius:var(--r-md);background:var(--green-50);color:var(--green-700);align-items:flex-start;gap:9px;padding:12px;font-size:13.5px;display:flex}.quiz-intro .card{text-align:center;padding:34px}.quiz-intro-icon{background:var(--blue-50);width:64px;height:64px;color:var(--blue-600);border-radius:50%;place-items:center;margin:0 auto 14px;display:grid}.quiz-intro h1{margin:15px 0 8px;font-size:28px}.quiz-intro>.card>p{color:var(--muted);line-height:1.6}.quiz-intro-grid,.result-metrics{grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0;display:grid}.quiz-intro-grid div,.result-metrics div{border:1px solid var(--line-2);border-radius:var(--r-md);flex-direction:column;gap:5px;padding:13px 8px;display:flex}.quiz-intro-grid span,.result-metrics span{color:var(--muted);font-size:12px}.quiz-intro-grid b,.result-metrics b{color:var(--ink);font-size:17px}.quiz-attempt-secure{-webkit-user-select:none;user-select:none}.quiz-attempt-secure img{-webkit-user-drag:none;user-drag:none}.result-summary-card{margin-bottom:20px;padding:24px}.result-summary-head h1{margin:10px 0 5px;font-size:56px;line-height:1}.result-summary-head>svg{color:var(--blue-500)}.answer-explanation{background:var(--surface-2);border-radius:var(--r-md);color:var(--ink-2);margin-top:14px;padding:13px}.answer-explanation p{margin-top:6px;line-height:1.6}.answer-explanation img{object-fit:contain;border-radius:var(--r-sm);max-width:100%;max-height:260px;margin-top:10px}@media (max-width:720px){.studio-preview-grid{grid-template-columns:1fr}.studio-tabs{width:100%;overflow-x:auto}.studio-tabs button{white-space:nowrap;flex:1}.quiz-intro-grid,.result-metrics{grid-template-columns:repeat(2,1fr)}.dashboard-actions{width:100%}.dashboard-actions>*{flex:1}}.course-path-heading{justify-content:space-between;align-items:flex-end;gap:18px;margin:28px 0 16px;display:flex}.course-path-heading h3{margin-top:4px;font-size:24px}.course-path-heading p{color:var(--muted);margin-top:5px;font-size:14px}.eyebrow{color:var(--blue-600);letter-spacing:.09em;text-transform:uppercase;font-size:11px;font-weight:800;display:block}.learning-roadmap{flex-direction:column;gap:14px;display:flex}.learning-week{border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-sm);border-radius:18px;overflow:hidden}.learning-week.is-locked{background:var(--surface-2)}.learning-week-head{justify-content:space-between;align-items:center;gap:14px;padding:17px 18px 13px;display:flex}.learning-week-head>div:first-child{flex-direction:column;gap:3px;display:flex}.learning-week-head span{color:var(--blue-600);text-transform:uppercase;letter-spacing:.05em;font-size:12px;font-weight:800}.learning-week-head b{font-size:15px}.week-state{background:var(--blue-50);color:var(--blue-600);border-radius:999px;align-items:center;gap:6px;padding:6px 9px;font-size:11px;font-weight:800;display:inline-flex}.week-state.is-done{background:var(--green-50);color:var(--green-600)}.week-state.is-locked{background:var(--surface);color:var(--muted)}.learning-week-progress{background:var(--line-2);border-radius:999px;height:3px;margin:0 18px;overflow:hidden}.learning-week-progress i{border-radius:inherit;background:var(--blue-500);height:100%;display:block}.learning-week-items{padding:10px}.roadmap-item{text-align:left;width:100%;color:var(--ink);border-radius:12px;align-items:center;gap:11px;padding:11px 10px;transition:background .15s,color .15s;display:flex}.roadmap-item:hover{background:var(--surface-2)}.roadmap-item[aria-disabled=true]{cursor:default;color:var(--muted);opacity:.68}.roadmap-item.is-current{background:var(--blue-50);color:var(--blue-700)}.roadmap-status{background:var(--surface-2);width:31px;height:31px;color:var(--muted);border-radius:50%;flex:none;place-items:center;display:grid}.roadmap-item.is-current .roadmap-status{background:var(--blue-500);color:#fff}.roadmap-item.is-done .roadmap-status{background:var(--green-50);color:var(--green-600)}.roadmap-copy{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.roadmap-copy b{text-overflow:ellipsis;white-space:nowrap;font-size:13.5px;overflow:hidden}.roadmap-copy small{color:var(--muted);font-size:11.5px}.roadmap-optional{background:var(--surface-2);color:var(--muted);border-radius:999px;padding:4px 7px;font-size:10px;font-weight:800}.roadmap-quiz{margin-top:1px;padding-left:28px;position:relative}.roadmap-quiz:before{content:"";background:var(--line);width:1px;height:12px;position:absolute;top:-7px;left:25px}.learning-roadmap.is-compact{gap:10px}.learning-roadmap.is-compact .learning-week{box-shadow:none;background:0 0;border:0;border-radius:13px}.learning-roadmap.is-compact .learning-week+.learning-week{border-top:1px solid var(--line);border-radius:0;padding-top:8px}.learning-roadmap.is-compact .learning-week-head{padding:11px 10px 8px}.learning-roadmap.is-compact .learning-week-progress{margin:0 10px}.learning-roadmap.is-compact .learning-week-items{padding:7px 0}.course-roadmap-sidebar{border:1px solid var(--line);background:var(--surface);max-height:calc(100vh - 130px);box-shadow:var(--sh-sm);border-radius:20px;padding:10px;position:sticky;top:86px;overflow:auto}.roadmap-sidebar-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:9px 10px 13px;display:flex}.roadmap-sidebar-head>div{flex-direction:column;gap:3px;min-width:0;display:flex}.roadmap-sidebar-head span{color:var(--muted);font-size:11.5px;font-weight:700}.roadmap-sidebar-head b{text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.student-id-protect-card{margin-top:10px;padding:16px}.student-id-protect-card h3{font-size:15px;font-weight:700}.student-id-protect-card p{color:var(--muted);margin:4px 0 12px;font-size:12.5px;line-height:1.5}.learning-content-frame{background:var(--surface);width:100%;min-height:420px;color:var(--ink);flex-direction:column;justify-content:center;align-items:flex-start;gap:15px;padding:54px;display:flex}.learning-content-frame h2{max-width:720px;font-size:clamp(26px,4vw,40px);line-height:1.15}.learning-content-frame p{max-width:720px;color:var(--muted);font-size:16px;line-height:1.75}.learning-content-icon{background:var(--blue-50);width:58px;height:58px;color:var(--blue-600);border-radius:16px;place-items:center;display:grid}.learning-item-description{max-width:760px;color:var(--muted);margin-top:12px;font-size:14px;line-height:1.65}.completion-pill{background:var(--green-50);color:var(--green-600);border-radius:999px;align-items:center;gap:6px;padding:7px 10px;font-size:12px;font-weight:800;display:inline-flex}.teacher-week-list{flex-direction:column;gap:18px;display:flex}.teacher-week{border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-sm);border-radius:18px;overflow:hidden}.teacher-week-head{border-bottom:1px solid var(--line);background:var(--surface-2);justify-content:space-between;align-items:center;gap:14px;padding:15px 17px;display:flex}.teacher-week-head>div{flex-direction:column;gap:3px;display:flex}.teacher-week-head span{color:var(--blue-600);text-transform:uppercase;letter-spacing:.06em;font-size:12px;font-weight:800}.teacher-week-head b{font-size:14px}.teacher-week-items{flex-direction:column;gap:10px;padding:12px;display:flex}.teacher-learning-item{border:1px solid var(--line-2);background:var(--surface);border-radius:14px;overflow:hidden}.teacher-item-main{align-items:center;gap:12px;padding:13px;display:flex}.teacher-item-icon{background:var(--blue-50);width:38px;height:38px;color:var(--blue-600);border-radius:11px;flex:none;place-items:center;display:grid}.teacher-item-copy{flex:1;min-width:170px}.teacher-item-copy>div{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.teacher-item-copy h4{font-size:14.5px}.teacher-item-copy p{color:var(--muted);margin-top:5px;font-size:12.5px}.teacher-item-actions{align-items:center;gap:7px;display:flex}.icon-btn.danger{color:var(--red-500)}.teacher-related-quiz{border-top:1px solid var(--line-2);background:var(--surface-2);width:100%;color:var(--blue-600);text-align:left;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex}.teacher-related-quiz>span{align-items:center;gap:7px;display:flex}.teacher-related-quiz small{color:var(--muted);font-weight:500}.quiz-editor.embedded{min-height:100%}.embedded-quiz-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:18px;padding:0 0 16px;display:flex}.embedded-quiz-head h3{margin-top:4px;font-size:20px}.embedded-quiz-head p{color:var(--muted);margin-top:4px;font-size:13px}.builder-grid.embedded{grid-template-columns:minmax(0,1fr) minmax(260px,.55fr)}.builder-grid.embedded .panel{position:static!important}.code-workflow{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-sm);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;margin-bottom:16px;padding:16px 18px;display:grid}.code-workflow h3{margin-top:4px;font-size:18px}.code-workflow p{color:var(--muted);margin-top:5px;font-size:13.5px}.code-workflow-steps{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.code-workflow-steps span{border:1px solid var(--line-2);color:var(--muted);background:var(--surface-2);border-radius:999px;align-items:center;gap:7px;padding:8px 10px;font-size:12px;font-weight:800;display:inline-flex}.code-workflow-steps b{background:var(--surface);width:20px;height:20px;color:var(--muted);font-family:var(--mono);border-radius:50%;place-items:center;font-size:11px;display:grid}.code-workflow-steps .active{color:var(--blue-600);border-color:var(--blue-100);background:var(--blue-50)}.code-workflow-steps .active b{background:var(--blue-500);color:#fff}@media (min-width:901px){.coursera-main .video-grid{grid-template-columns:390px minmax(0,1fr);grid-template-areas:"roadmap content"}.video-grid>div:first-child{grid-area:content}.video-grid>.course-roadmap-sidebar{grid-area:roadmap}.video-grid .video-stage{aspect-ratio:auto;height:min(64vh,650px)}}@media (max-width:900px){.course-roadmap-sidebar{max-height:none;position:static}.course-path-heading{flex-direction:column;align-items:flex-start}}@media (max-width:680px){.action-panel-backdrop{justify-content:stretch;align-items:stretch}.action-panel{border-left:0;max-width:100%!important}.action-panel-head{padding:16px}.action-panel-body{padding:14px 16px 20px}.studio-command,.code-workflow{grid-template-columns:1fr}.studio-command-stats{grid-template-columns:repeat(3,1fr)}.code-workflow-steps{justify-content:flex-start}.embedded-quiz-head{flex-direction:column}.builder-grid.embedded{grid-template-columns:1fr}.learning-week-head,.teacher-week-head{align-items:flex-start}.teacher-item-main{flex-wrap:wrap;align-items:flex-start}.teacher-item-copy{min-width:calc(100% - 100px)}.teacher-item-actions{justify-content:flex-end;width:100%}.teacher-related-quiz{flex-direction:column;align-items:flex-start}.teacher-related-quiz small{display:block}.learning-content-frame{min-height:340px;padding:30px 22px}}