@font-face{font-family:Playfair Display;font-style:normal;font-weight:400 900;font-display:swap;src:url(../media/65c558afe41e89d6-s.e2c8389a.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Playfair Display;font-style:normal;font-weight:400 900;font-display:swap;src:url(../media/14e23f9b59180572-s.9c448f3c.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:Playfair Display;font-style:normal;font-weight:400 900;font-display:swap;src:url(../media/b49b0d9b851e4899-s.4f3fa681.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:Playfair Display;font-style:normal;font-weight:400 900;font-display:swap;src:url(../media/2a65768255d6b625-s.p.d19752fb.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:Playfair Display Fallback;src:local(Times New Roman);ascent-override:97.25%;descent-override:22.56%;line-gap-override:0.0%;size-adjust:111.26%}.playfair_display_fa003182-module__E_H7JW__className{font-family:Playfair Display,Playfair Display Fallback;font-style:normal}.playfair_display_fa003182-module__E_H7JW__variable{--font-playfair:"Playfair Display","Playfair Display Fallback"}
@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2c55a0e60120577a-s.2a48534a.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:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/9c72aa0f40e4eef8-s.18a48cbc.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/ad66f9afd8947f86-s.7a40eb73.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5476f68d60460930-s.c995e352.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:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2bbe8d2671613f1f-s.76dcb0b2.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:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/1bffadaabf893a1e-s.7cd81963.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:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/83afe278b6a6bb3c-s.p.3a6ba036.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:Inter Fallback;src:local(Arial);ascent-override:90.44%;descent-override:22.52%;line-gap-override:0.0%;size-adjust:107.12%}.inter_fe8b9d92-module__LINzvG__className{font-family:Inter,Inter Fallback;font-style:normal}.inter_fe8b9d92-module__LINzvG__variable{--font-inter:"Inter","Inter Fallback"}
@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e390973e931a41c5-s.a82ecf4e.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:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/59b15b4bcd7b1eb5-s.afa48be3.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e532fa1b9921e1cd-s.764b43eb.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:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/2fe89d53234c61d4-s.cb53f04b.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:IBM Plex Mono;font-style:normal;font-weight:400;font-display:swap;src:url(../media/99e609270109b47d-s.p.64b9304e.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/5e05ae5b48faa55e-s.6b5ea6af.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/a7afbb44bec2bb18-s.1dcddae6.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/02263ebadd758ea4-s.8da66e7f.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/68757d6cddeff913-s.e6cd1753.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:IBM Plex Mono;font-style:normal;font-weight:500;font-display:swap;src:url(../media/effe91970fc4db64-s.p.19510058.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/6ff74e33ebd7bca3-s.140490a3.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/1a69062cfe6f77f8-s.b36ae37c.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/9a4838fcda0d1bca-s.bf5f8a12.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/2e95a7d252b9825a-s.10086973.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:IBM Plex Mono;font-style:normal;font-weight:600;font-display:swap;src:url(../media/23b7a97ae3b5c134-s.p.2902b61f.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:IBM Plex Mono Fallback;src:local(Arial);ascent-override:76.16%;descent-override:20.43%;line-gap-override:0.0%;size-adjust:134.59%}.ibm_plex_mono_9b9b7839-module__45hz-q__className{font-family:IBM Plex Mono,IBM Plex Mono Fallback;font-style:normal}.ibm_plex_mono_9b9b7839-module__45hz-q__variable{--font-mono:"IBM Plex Mono","IBM Plex Mono Fallback"}
:root{--navy:#1b2a4a;--navy-light:#243660;--navy-dark:#111b30;--amber:#f5a623;--amber-light:#fcc45a;--amber-pale:#fef3d9;--emerald:#2ecc71;--emerald-pale:#d4f5e5;--crimson:#e74c3c;--crimson-pale:#fdeaea;--bg:#f8f7f4;--bg2:#edecea;--white:#fff;--text:#1b2a4a;--text-muted:#6b7a99;--text-light:#9aa5be;--border:#ddd9d3;--border-navy:#c5cede;--shadow-sm:0 1px 3px #1b2a4a14;--shadow:0 4px 16px #1b2a4a1f;--shadow-lg:0 8px 32px #1b2a4a29;--radius:12px;--radius-lg:20px;--radius-xl:28px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}html,body{max-width:100vw;overflow-x:hidden}body{font-family:var(--font-inter),"Inter",sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}a{color:inherit;text-decoration:none}.btn{border-radius:var(--radius);font-family:var(--font-inter),"Inter",sans-serif;cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background:var(--navy);color:var(--white)}.btn-primary:hover{background:var(--navy-light);box-shadow:var(--shadow);transform:translateY(-1px)}.btn-amber{background:var(--amber);color:var(--navy-dark)}.btn-amber:hover{background:var(--amber-light);transform:translateY(-1px);box-shadow:0 4px 12px #f5a62359}.btn-outline{border:2px solid var(--border);color:var(--text);background:0 0}.btn-outline:hover{border-color:var(--navy);color:var(--navy)}.btn-ghost{color:var(--text-muted);background:0 0;border:none;font-size:14px}.btn-ghost:hover{color:var(--text)}.btn-lg{border-radius:var(--radius-lg);padding:16px 32px;font-size:17px}.btn-sm{border-radius:8px;padding:8px 16px;font-size:13px}.btn-full{width:100%}.nav-logo{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--white);letter-spacing:-.5px;font-size:22px;font-weight:700}.nav-logo span{color:var(--amber)}.badge{letter-spacing:.4px;text-transform:uppercase;border-radius:20px;align-items:center;gap:4px;padding:3px 10px;font-size:11px;font-weight:600;display:inline-flex}.landing-hero{background:linear-gradient(135deg,var(--navy-dark)0%,var(--navy)50%,#263870 100%);text-align:center;padding:80px 24px;position:relative;overflow:hidden}.landing-hero:before{content:"";background:radial-gradient(80% 60% at 50% 0,#f5a6231f 0%,#0000 70%);position:absolute;inset:0}.landing-hero-content{max-width:760px;margin:0 auto;position:relative}.hero-tag{color:var(--amber);letter-spacing:.5px;text-transform:uppercase;background:#f5a62326;border-radius:20px;align-items:center;gap:8px;margin-bottom:24px;padding:6px 16px;font-size:12px;font-weight:600;display:inline-flex}.hero-h1{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--white);margin-bottom:20px;font-size:clamp(36px,6vw,64px);font-weight:700;line-height:1.15}.hero-h1 span{color:var(--amber)}.hero-sub{color:#ffffffb3;max-width:560px;margin:0 auto 36px;font-size:18px;line-height:1.7}.hero-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.hero-stats{border-top:1px solid #ffffff1a;flex-wrap:wrap;justify-content:center;gap:40px;margin-top:60px;padding-top:40px;display:flex}.hero-stat .big{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--white);font-size:36px;font-weight:700}.hero-stat .sm{color:#ffffff80;text-transform:uppercase;letter-spacing:.5px;font-size:13px}.features-section{max-width:1100px;margin:0 auto;padding:80px 24px}.features-section h2{font-family:var(--font-playfair),"Playfair Display",serif;text-align:center;color:var(--navy);margin-bottom:12px;font-size:36px}.features-section .sub{text-align:center;color:var(--text-muted);margin-bottom:56px;font-size:16px}.features-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.feature-card{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);padding:28px 24px;transition:all .2s}.feature-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.feature-icon{margin-bottom:16px;font-size:32px}.feature-card h3{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--navy);margin-bottom:8px;font-size:18px}.feature-card p{color:var(--text-muted);font-size:14px;line-height:1.7}.pricing-section{background:var(--navy-dark);padding:80px 24px}.pricing-section h2{font-family:var(--font-playfair),"Playfair Display",serif;text-align:center;color:var(--white);margin-bottom:8px;font-size:36px}.pricing-section .sub{text-align:center;color:#ffffff80;margin-bottom:56px;font-size:16px}.pricing-grid{grid-template-columns:1fr 1fr;gap:24px;max-width:760px;margin:0 auto;display:grid}.pricing-card{border-radius:var(--radius-xl);color:var(--white);background:#ffffff0d;border:1px solid #ffffff1a;padding:36px 28px}.pricing-card.featured{background:var(--amber);color:var(--navy-dark);border-color:var(--amber)}.price-amount{font-family:var(--font-playfair),"Playfair Display",serif;font-size:48px;font-weight:700}.price-period{opacity:.6;font-size:14px}.price-features{margin:24px 0;list-style:none}.price-features li{border-bottom:1px solid #ffffff1a;align-items:center;gap:8px;padding:8px 0;font-size:14px;display:flex}.pricing-card.featured .price-features li{border-bottom-color:#1b2a4a1a}.auth-shell{background:linear-gradient(135deg,var(--navy-dark)0%,var(--navy)60%,#2a4080 100%);justify-content:center;align-items:center;min-height:100vh;padding:40px 24px;display:flex}.auth-card{background:var(--white);border-radius:var(--radius-xl);width:100%;max-width:440px;padding:48px 40px;box-shadow:0 20px 60px #0006}.auth-card h1{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--navy);margin-bottom:4px;font-size:28px;font-weight:700}.auth-card .auth-sub{color:var(--text-muted);margin-bottom:28px;font-size:14px}.auth-input{border:2px solid var(--border);width:100%;font-family:var(--font-inter),"Inter",sans-serif;background:var(--bg);color:var(--text);border-radius:10px;outline:none;padding:13px 16px;font-size:14px;transition:border-color .2s}.auth-input:focus{border-color:var(--navy)}.auth-input::placeholder{color:var(--text-light)}.auth-error{background:var(--crimson-pale);color:var(--crimson);border-radius:8px;margin-bottom:16px;padding:10px 14px;font-size:13px}.auth-divider{align-items:center;gap:12px;margin:16px 0;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--border);flex:1;height:1px}.auth-divider span{color:var(--text-muted);font-size:12px}.onboard-shell{background:linear-gradient(135deg,var(--navy-dark)0%,var(--navy)60%,#2a4080 100%);justify-content:center;align-items:center;min-height:100vh;padding:40px 24px;display:flex}.onboard-card{background:var(--white);border-radius:var(--radius-xl);width:100%;max-width:540px;padding:48px 40px;box-shadow:0 20px 60px #0006}.onboard-steps{gap:8px;margin-bottom:36px;display:flex}.onboard-step{background:var(--border);border-radius:999px;flex:1;height:4px;transition:background .3s}.onboard-step.done{background:var(--navy)}.onboard-step.active{background:var(--amber)}.onboard-logo{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--navy);margin-bottom:4px;font-size:28px;font-weight:700}.onboard-logo span{color:var(--amber)}.onboard-q{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--navy);margin-bottom:8px;font-size:22px}.onboard-sub{color:var(--text-muted);margin-bottom:28px;font-size:14px}.subject-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.subject-chip{border:2px solid var(--border);background:var(--bg);cursor:pointer;color:var(--text);text-align:left;border-radius:10px;padding:10px 14px;font-size:13px;font-weight:500;transition:all .2s}.subject-chip:hover{border-color:var(--navy-light)}.subject-chip.sel{border-color:var(--navy);color:var(--navy);background:#1b2a4a0f}.know-level-row{gap:8px;display:flex}.kl-btn{border:2px solid var(--border);background:var(--bg);cursor:pointer;color:var(--text-muted);text-align:center;border-radius:10px;flex:1;padding:12px 8px;font-size:13px;font-weight:500;transition:all .2s}.kl-btn:hover{border-color:var(--navy);color:var(--navy)}.kl-btn.sel{border-color:var(--amber);background:var(--amber-pale);color:#7a5500}.date-radio{flex-direction:column;gap:8px;display:flex}.date-radio-item{border:2px solid var(--border);background:var(--bg);cursor:pointer;border-radius:10px;align-items:center;gap:12px;padding:14px 16px;transition:all .2s;display:flex}.date-radio-item.sel{border-color:var(--navy);background:#1b2a4a0a}.date-radio-item input{accent-color:var(--navy)}.nav{background:var(--navy);z-index:100;justify-content:space-between;align-items:center;height:56px;padding:0 24px;display:flex;position:sticky;top:0}.nav-links{gap:4px;display:flex}.nav-btn{color:#fff9;cursor:pointer;font-size:13px;font-weight:500;font-family:var(--font-inter),"Inter",sans-serif;background:0 0;border:none;border-radius:8px;padding:8px 14px;transition:all .2s}.nav-btn:hover{color:#fff;background:#ffffff14}.nav-btn.active{color:#fff;background:#ffffff1f}.nav-avatar{background:var(--amber);width:32px;height:32px;color:var(--navy-dark);border-radius:50%;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.nav-upgrade{color:var(--amber);cursor:pointer;font-size:12px;font-weight:600;font-family:var(--font-inter),"Inter",sans-serif;background:#f5a62326;border:none;border-radius:8px;padding:6px 14px}.study-shell{flex-direction:column;flex:1;width:100%;max-width:720px;margin:0 auto;padding:0 16px 32px;display:flex}.study-progress-bar{background:var(--bg2);border-radius:999px;height:4px;margin:20px 0;overflow:hidden}.study-progress-fill{background:linear-gradient(90deg,var(--amber),var(--navy));border-radius:999px;height:100%;transition:width .5s}.card-meta{align-items:center;gap:10px;margin-bottom:20px;display:flex}.badge-navy{color:var(--navy);background:#1b2a4a1a}.badge-muted{background:var(--bg2);color:var(--text-muted)}.diff-dot{border-radius:50%;width:8px;height:8px;display:inline-block}.diff-easy{background:var(--emerald)}.diff-medium{background:var(--amber)}.diff-hard{background:var(--crimson)}.flashcard{background:var(--white);border-radius:var(--radius-xl);border:1px solid var(--border);padding:32px 28px;position:relative;overflow:hidden;box-shadow:0 8px 40px #1b2a4a1a}.flashcard:before{content:"";background:linear-gradient(90deg,var(--amber),var(--navy));height:4px;position:absolute;top:0;left:0;right:0}.scenario-text{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--navy);margin-bottom:28px;font-size:17px;line-height:1.75}.options-list{flex-direction:column;gap:10px;margin-bottom:24px;display:flex}.option-btn{border-radius:var(--radius);border:2px solid var(--border);background:var(--bg);cursor:pointer;text-align:left;font-family:var(--font-inter),"Inter",sans-serif;color:var(--text);align-items:flex-start;gap:12px;width:100%;padding:14px 18px;font-size:14px;transition:all .2s;display:flex}.option-btn:hover{border-color:var(--navy-light);background:#1b2a4a0a}.option-btn.selected{border-color:var(--navy);background:#1b2a4a0f}.option-btn.correct{border-color:var(--emerald);background:var(--emerald-pale)}.option-btn.wrong{border-color:var(--crimson);background:var(--crimson-pale)}.option-label{background:var(--border);width:26px;height:26px;color:var(--text-muted);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;transition:all .2s;display:flex}.option-btn.selected .option-label{background:var(--navy);color:#fff}.option-btn.correct .option-label{background:var(--emerald);color:#fff}.option-btn.wrong .option-label{background:var(--crimson);color:#fff}.explanation-panel{background:var(--white);border-radius:var(--radius-xl);border:1px solid var(--border);box-shadow:var(--shadow-lg);margin-top:16px;padding:24px;animation:.35s slideUp}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.expl-section{margin-bottom:16px}.expl-label{letter-spacing:1px;text-transform:uppercase;color:var(--text-muted);margin-bottom:6px;font-size:10px;font-weight:700}.expl-text{font-size:14px;line-height:1.7}.key-principle{border-left:3px solid var(--navy);background:#1b2a4a0d;border-radius:0 8px 8px 0;padding:12px 16px}.key-principle .expl-text{color:var(--navy);font-weight:500}.case-citation{font-family:var(--font-mono),"IBM Plex Mono",monospace;color:var(--text-muted);font-size:13px;font-style:italic}.sqe-tip{background:var(--amber-pale);border-radius:10px;align-items:flex-start;gap:10px;padding:12px 16px;display:flex}.sqe-tip-icon{flex-shrink:0;font-size:18px}.sqe-tip-text{color:#7a5500;font-size:13px;line-height:1.6}.self-assess{gap:10px;margin-top:20px;display:flex}.sa-btn{border-radius:var(--radius);font-family:var(--font-inter),"Inter",sans-serif;cursor:pointer;border:2px solid #0000;flex-direction:column;flex:1;align-items:center;gap:4px;padding:14px 12px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.sa-btn .sa-sub{opacity:.7;font-size:10px;font-weight:400}.sa-again{background:var(--crimson-pale);color:var(--crimson);border-color:#f5c6c2}.sa-again:hover{background:var(--crimson);color:#fff;border-color:var(--crimson)}.sa-hard{background:var(--amber-pale);color:#8a5800;border-color:#f0d090}.sa-hard:hover{background:var(--amber);color:#fff;border-color:var(--amber)}.sa-easy{background:var(--emerald-pale);color:#1a6b40;border-color:#a8e8c8}.sa-easy:hover{background:var(--emerald);color:#fff;border-color:var(--emerald)}.session-complete{background:var(--navy);z-index:200;flex-direction:column;justify-content:center;align-items:center;padding:40px;animation:.4s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.session-score{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--amber);font-size:80px;font-weight:700;line-height:1}.session-title{font-family:var(--font-playfair),"Playfair Display",serif;color:var(--white);margin-bottom:8px;font-size:28px}.session-subtitle{color:#fff9;margin-bottom:40px;font-size:15px}.session-stats{gap:32px;margin-bottom:40px;display:flex}.session-stat{text-align:center}.session-stat .num{color:var(--white);font-size:28px;font-weight:700;font-family:var(--font-playfair),"Playfair Display",serif}.session-stat .lbl{color:#ffffff80;text-transform:uppercase;letter-spacing:.5px;font-size:12px}.hidden{display:none!important}.flex-between{justify-content:space-between;align-items:center;display:flex}.text-sm{font-size:13px}.text-muted{color:var(--text-muted)}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}@media (max-width:900px){.features-grid{grid-template-columns:1fr 1fr}}@media (max-width:640px){.features-grid,.pricing-grid{grid-template-columns:1fr}.hero-stats{gap:24px}.hero-actions{flex-direction:column;align-items:center}.onboard-card,.auth-card{padding:32px 24px}.subject-grid{grid-template-columns:1fr}.know-level-row,.self-assess{flex-direction:column}.session-stats{gap:20px}.nav-links{display:none}}