/* StudyDesk homepage only — independent of dashboard styles. */
:root{color-scheme:light;--page:#f7f9fd;--surface:#fff;--surface-soft:#edf3ff;--ink:#17243e;--muted:#53637c;--blue:#2c55df;--blue-hover:#2144bb;--tint:#e7efff;--line:#dce4ef;--shadow:0 18px 58px -30px #1e396f45;--header:rgba(255,255,255,.95);--focus:#2853de;--timer:#132139;--timer-ink:#f5f8ff;--timer-muted:#bbc9e2;--timer-line:#40516c}
:root[data-theme=dark]{color-scheme:dark;--page:#0c1320;--surface:#131e2e;--surface-soft:#15273f;--ink:#edf3ff;--muted:#acbad0;--blue:#91b2ff;--blue-hover:#b3caff;--tint:#203659;--line:#2b3b51;--shadow:0 18px 58px -30px #000a;--header:rgba(12,19,32,.96);--focus:#a7c3ff}
@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--page:#0c1320;--surface:#131e2e;--surface-soft:#15273f;--ink:#edf3ff;--muted:#acbad0;--blue:#91b2ff;--blue-hover:#b3caff;--tint:#203659;--line:#2b3b51;--shadow:0 18px 58px -30px #000a;--header:#0c1320;--focus:#a7c3ff}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--page);color:var(--ink);font:400 1rem/1.65 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,p{margin:0}h1,h2,h3{line-height:1.15;letter-spacing:-.042em;font-weight:750;text-wrap:balance}h2{font-size:clamp(1.9rem,3vw,2.8rem)}h3{font-size:1.35rem}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}input,select,textarea{min-width:0;max-width:100%}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:4px}button,a,input,summary,select,textarea{-webkit-tap-highlight-color:transparent}img{display:block;max-width:100%}.icon{width:22px;height:22px;flex-shrink:0;vertical-align:middle}a .icon{transition:transform .18s ease}a:hover>.icon:last-child{transform:translateX(3px)}[hidden]{display:none!important}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.js-control{display:none!important}.js .js-control{display:flex!important}.container{width:min(1264px,calc(100% - 96px));margin-inline:auto}.section{padding:36px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:12px 20px;border:1px solid transparent;border-radius:10px;font-size:.9375rem;line-height:1.4;font-weight:650;transition:background .18s,box-shadow .18s,transform .18s;text-align:center}.btn:hover{transform:translateY(-2px)}.btn-primary{background:#3158e6;color:#fff;border-color:#3158e6;box-shadow:0 5px 14px -8px #3158e6b3}.btn-primary:hover{background:#2447c7;border-color:#2447c7;box-shadow:0 7px 18px -7px #3158e66b}.btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.btn-secondary:hover{border-color:var(--blue);background:var(--surface-soft)}.text-link{display:inline-flex;gap:8px;align-items:center;font-size:.9375rem;font-weight:650;color:var(--blue);min-height:40px}.text-link .icon{width:18px;height:18px}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.eyebrow{display:block;font-size:.75rem;font-weight:750;line-height:1.4;letter-spacing:.13em;color:var(--blue);margin-bottom:16px}.pill{display:inline-block;padding:7px 10px;background:var(--tint);border-radius:6px;letter-spacing:.1em}.sd-skip-link{position:fixed;top:-100px;left:16px;z-index:10001;background:var(--surface);color:var(--ink);padding:12px 20px;border:2px solid var(--focus);border-radius:8px}.sd-skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:var(--header);border-bottom:1px solid var(--line);transition:box-shadow .2s}.site-header.is-scrolled{box-shadow:0 5px 20px -12px #14294d70}.nav-inner{display:flex;align-items:center;gap:28px;min-height:80px}.brand{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand img{border-radius:9px}.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:.875rem;font-weight:600}.nav-links>a,.nav-dropdown>summary{padding-block:14px;min-height:44px}.nav-links a:hover,.nav-dropdown>summary:hover{color:var(--blue)}.nav-dropdown{position:relative}.nav-dropdown>summary{display:flex;align-items:center;gap:4px;list-style:none;cursor:pointer}.nav-dropdown>summary::-webkit-details-marker{display:none}.nav-dropdown .icon{width:14px;height:14px}.nav-popover{position:absolute;top:100%;left:-16px;min-width:230px;display:grid;padding:8px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.nav-popover a{padding:12px;border-radius:7px}.nav-popover a:hover{background:var(--surface-soft)}.nav-actions{display:flex;align-items:center;gap:14px}.icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.icon-button:hover{background:var(--surface-soft)}.login-link{font-size:.875rem;font-weight:650;white-space:nowrap;padding-block:12px}.nav-start{min-height:44px;font-size:.875rem;padding:10px 14px}.nav-account,.js .nav-toggle{display:none!important}.theme-sun{display:none}:root[data-theme=dark] .theme-sun{display:inline-flex}:root[data-theme=dark] .theme-moon{display:none}.close-icon{display:none}
.hero{padding:66px 0 54px;position:relative;background:linear-gradient(145deg,var(--page) 45%,var(--surface-soft));border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:50px;align-items:center}.hero h1{font-size:clamp(2.8rem,4.25vw,4rem);line-height:1.09;letter-spacing:-.052em}.hero h1 em{font-style:normal;color:var(--blue)}.hero-lead{font-size:1.0625rem;color:var(--muted);line-height:1.8;max-width:490px;margin-top:24px}.hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}.hero-actions .btn{min-height:54px}.hero-trust{display:flex;gap:10px;align-items:center;margin-top:20px;color:var(--muted);font-size:.875rem}.hero-trust .icon{width:18px;height:18px;color:var(--blue)}.hero-account{margin-top:12px;font-size:.875rem}.study-space{min-width:0;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.space-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 2px 16px}.space-heading>span{display:flex;align-items:center;gap:8px;font-size:1rem;font-weight:700}.space-heading>span .icon{color:var(--blue);width:21px}.space-heading>a{display:flex;gap:5px;align-items:center;font-size:.75rem;color:var(--muted);min-height:32px}.space-heading>a .icon{width:14px}.space-grid{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,.78fr);gap:16px}.timer-panel{background:var(--timer);color:var(--timer-ink);border-radius:13px;padding:18px;min-width:0;color-scheme:dark;--focus:#a7c3ff;scroll-margin-top:106px}.timer-modes{border:1px solid var(--timer-line);border-radius:8px;padding:3px;gap:4px}.timer-modes button{background:none;border:0;flex:1;border-radius:5px;color:var(--timer-muted);font-size:.875rem;min-height:36px;padding:4px 8px}.timer-modes button[aria-pressed=true]{background:#3158e6;color:#fff}.subject-picker{display:flex;justify-content:center;margin:17px 0 0}.subject-picker select{color:var(--timer-ink);background:#21334f;border:1px solid var(--timer-line);border-radius:7px;padding:6px 24px 6px 10px;font-size:.875rem;max-width:100%;min-height:38px}.focus-clock{font-size:clamp(3rem,4.7vw,4.6rem);line-height:1.2;letter-spacing:-.04em;font-weight:650;text-align:center;margin-top:15px;font-variant-numeric:tabular-nums}.focus-state{font-size:.8125rem;color:var(--timer-muted);text-align:center;min-height:42px;margin-top:6px}.timer-primary-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.timer-primary-actions #homeStartBtn{width:100%}.timer-primary-actions #homeStartBtn:disabled{display:none}.timer-primary-actions #homePauseBtn,.timer-primary-actions #homeFinishBtn{flex:1}.timer-primary-actions #homePauseBtn:disabled,.timer-primary-actions #homeFinishBtn:disabled{display:none}.timer-button{background:#223653;border-color:var(--timer-line);color:#f4f7fe;padding:10px;min-height:44px}.timer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:4px;margin-top:8px;flex-wrap:wrap}.timer-toolbar button,.duration-control{display:flex;align-items:center;justify-content:center;gap:4px;background:none;border:0;font-size:.75rem;min-height:44px;color:var(--timer-muted);padding:2px}.timer-toolbar .icon{width:15px;height:15px}.duration-control select{background:none;border:0;color:var(--timer-muted);padding:0;font-size:.75rem;max-width:72px;min-height:44px}.timer-toolbar button:hover{color:#fff}.timer-settings{border-top:1px solid var(--timer-line);margin-top:3px}.timer-settings summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:.75rem;color:var(--timer-muted);min-height:36px;list-style:none}.timer-settings summary .icon{width:14px}.timer-settings>div{display:grid;gap:10px;padding:7px 0 12px}.timer-settings label{display:grid;gap:5px;font-size:.8125rem}.timer-settings input{background:#20324d;color:#f4f7ff;border:1px solid var(--timer-line);border-radius:7px;width:100%;padding:8px}.daily-progress{font-size:.75rem;color:var(--timer-muted);margin-top:8px}.daily-progress>div:first-child{display:flex;justify-content:space-between;gap:6px}.daily-progress strong{white-space:nowrap;color:#f4f7ff;font-weight:600}.progress-track{height:4px;border-radius:4px;background:#2e4160;margin-top:8px;overflow:hidden}.progress-track span{display:block;height:100%;background:#87acff;width:0;transition:width .5s}.timer-hint{font-size:.75rem;line-height:1.5;color:var(--timer-muted);margin-top:9px}.session-complete{display:grid;gap:6px;padding:12px;background:#203657;border:1px solid #6586c6;border-radius:8px;margin-top:12px;font-size:.875rem}.session-complete small{font-size:.75rem}.sample-plan{min-width:0}.sample-plan summary{display:flex;align-items:center;justify-content:space-between;gap:4px;list-style:none;min-height:40px;cursor:pointer;font-size:.875rem;font-weight:700}.sample-plan summary>span{display:flex;align-items:center;gap:6px}.sample-plan summary .icon{width:16px;height:16px;color:var(--blue)}.sample-plan summary> .icon{width:13px}.sample-label{font-size:.75rem;color:var(--muted);margin:12px 0}.sample-task{display:flex;align-items:start;gap:8px;padding:15px 0;border-bottom:1px solid var(--line);cursor:pointer}.sample-task input{accent-color:#3158e6;width:17px;height:17px;margin:2px 0;flex-shrink:0}.sample-task span{display:grid;gap:4px}.sample-task strong{font-size:.8125rem;font-weight:600;line-height:1.5}.sample-task small{font-size:.75rem;color:var(--muted)}.sample-task:has(input:checked) strong{text-decoration:line-through;color:var(--muted)}.sample-plan .text-link{font-size:.8125rem;line-height:1.5;margin-top:14px}.sample-plan .text-link .icon{width:15px}.sample-note{font-size:.75rem;color:var(--muted);margin-top:12px;line-height:1.6}.space-note{font-size:.75rem;color:var(--muted);text-align:center;margin-top:14px}.space-note a{text-decoration:underline;text-underline-offset:3px}.intent-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:18px 10px;margin-top:30px;margin-bottom:2px;border:1px solid var(--line);border-radius:13px;background:var(--surface)}.intent-nav>a{display:flex;gap:18px;align-items:center;padding:10px 24px;min-height:74px;border-right:1px solid var(--line)}.intent-nav>a:last-child{border:0}.intent-nav>a>.icon:first-child{width:31px;height:31px;color:var(--blue)}.intent-nav>a>.icon:last-child{width:18px;height:18px;color:var(--blue);margin-left:auto}.intent-nav strong{font-size:1rem;display:block;line-height:1.4}.intent-nav small{display:block;margin-top:4px;font-size:.8125rem;color:var(--muted)}.intent-nav>a:hover strong{color:var(--blue)}
.ai-feature{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:center;padding:40px;background:var(--surface-soft);border:1px solid var(--line);border-radius:18px}.ai-copy p{color:var(--muted);margin-top:18px;max-width:370px;font-size:1rem}.ai-copy .btn{margin-top:24px}.ai-more{display:flex;width:fit-content;margin-top:8px}.ai-panel{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:20px;min-width:0;box-shadow:0 10px 25px -24px #17305b}.ai-panel-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:16px}.ai-panel-header>span:first-child{display:flex;align-items:center;gap:8px;font-size:.875rem;font-weight:700}.ai-panel-header img{border-radius:6px}.example-badge{font-size:.75rem;color:var(--muted);padding:4px 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textarea{background:none;border:0;resize:none;outline:none!important;box-shadow:none;width:100%;padding:11px 6px;font-size:.9375rem;line-height:1.5;max-height:120px}.ai-demo-form button{background:#3158e6;color:#fff;border:0;border-radius:6px;width:44px;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}.ai-demo-form[aria-busy=true] button{opacity:.6}.ai-examples{gap:8px;flex-wrap:wrap;margin-top:10px}.ai-examples button{font-size:.75rem;color:var(--muted);border:1px solid var(--line);background:var(--surface);border-radius:6px;min-height:34px;padding:6px 9px}.ai-examples button:hover{color:var(--blue);border-color:var(--blue)}.ai-disclaimer{font-size:.75rem;color:var(--muted);margin-top:12px}.sd-chat-message{display:flex;gap:8px;margin:14px 0}.sd-chat-avatar{background:var(--tint);color:var(--blue);border-radius:6px;width:26px;min-width:26px;height:26px;display:grid;place-items:center;font-size:.8125rem}.sd-chat-message>div>span{font-weight:650;font-size:.8125rem}.sd-chat-message p{font-size:.9375rem}.sd-user-message{background:var(--surface-soft);padding:12px;border-radius:10px}.sd-rich-answer{padding:4px;overflow-wrap:anywhere}.sd-rich-answer p,.sd-rich-answer li{font-size:.9375rem;margin:10px 0}.sd-rich-answer h2,.sd-rich-answer h3{font-size:1.2rem;margin:18px 0 8px;letter-spacing:-.02em}.sd-rich-answer code{background:var(--tint);border-radius:4px;padding:2px 4px}.sd-rich-answer blockquote{border-left:3px solid var(--blue);padding-left:12px;margin:14px 0}.math-display,mjx-container{max-width:100%;overflow-x:auto}.section-heading{margin-bottom:24px}.section-heading p{color:var(--muted);margin-top:12px;max-width:750px}.discovery-grid{display:grid;grid-template-columns:1.2fr 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1fr;gap:36px}.footer-brand>p{margin-top:12px;color:var(--muted);font-size:.875rem}.footer-brand .text-link{margin-top:6px;font-size:.875rem}.system-theme{display:block;background:none;border:0;color:var(--muted);padding:8px 0;font-size:.8125rem;min-height:40px;text-decoration:underline;text-underline-offset:4px}.footer-group summary{display:flex;align-items:center;justify-content:space-between;list-style:none;font-size:.9375rem;font-weight:650;min-height:36px;cursor:pointer}.footer-group summary .icon{width:14px;height:14px}.footer-group nav{display:grid;gap:0;margin-top:9px}.footer-group nav a{font-size:.875rem;color:var(--muted);min-height:36px;display:flex;align-items:center}.footer-group nav a:hover{color:var(--blue)}.footer-bottom{display:flex;justify-content:space-between;gap:12px;margin-top:30px;padding-top:18px;border-top:1px solid var(--line);font-size:.75rem;color:var(--muted)}.footer-bottom a{min-height:36px}.no-js-note{font-size:.875rem;margin-top:12px}
/* Focus mode stays quiet in either theme. */
.sd-fullscreen-timer{position:fixed;inset:0;z-index:9999;background:#101b2d;color:#f3f7ff;overflow:auto;min-height:100dvh;--focus:#a7c3ff}.sd-focus-open{overflow:hidden}.sd-fullscreen-bg{display:none}.sd-fullscreen-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 36px;border-bottom:1px solid #30415d}.fullscreen-brand{display:flex;align-items:center;gap:12px}.fullscreen-brand img{border-radius:10px}.fullscreen-brand span{font-size:.875rem;color:#b5c6e1}.sd-fullscreen-now{display:flex;gap:24px;align-items:center;color:#c2d0e5}.sd-fullscreen-now button{min-height:44px;padding:8px 12px;border:1px solid #405477;border-radius:8px;background:none;color:#e8f0ff;font-size:.875rem}.sd-fullscreen-center{max-width:800px;width:calc(100% - 48px);margin:50px auto;text-align:center}.sd-fullscreen-subject{font-size:1rem;letter-spacing:.12em;color:#aac4ff;font-weight:700}.sd-fullscreen-topic{margin-top:16px;font-size:1.5rem;overflow-wrap:anywhere}.sd-fullscreen-clock{font-size:clamp(4rem,12vw,10rem);line-height:1.2;letter-spacing:-.03em;font-variant-numeric:tabular-nums;margin:26px 0 10px}.sd-fullscreen-state{color:#b9c9e2;font-size:1rem}.sd-fullscreen-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:26px}.sd-fullscreen-actions button{min-height:50px;padding:10px 20px;color:#edf3ff;background:#223857;border:1px solid #4a6388;border-radius:9px}.sd-fullscreen-actions .finish{background:#3158e6;border-color:#3158e6}.sd-fullscreen-progress-row{display:flex;justify-content:space-between;color:#b9c9e2;margin:40px 0 10px;font-size:.9375rem}.sd-fullscreen-progress{height:5px;background:#2c405e;border-radius:5px;overflow:hidden}.sd-fullscreen-progress>span{display:block;height:100%;background:#94b4ff;width:0}.sd-fullscreen-motto{margin-top:35px;color:#a7b9d6;font-size:.75rem;letter-spacing:.15em}
/* Motion enhances visible content; no section starts invisible. */
@media(prefers-reduced-motion:no-preference){.hero-copy{animation:arrive .55s ease-out both}.study-space{animation:arrive .65s .08s ease-out both}.reveal.is-visible{animation:arrive .55s ease-out both}.timer-panel.is-running .focus-clock{color:#fff}.btn-primary:active{transform:translateY(0) scale(.98)}@keyframes arrive{from{opacity:.5;transform:translateY(12px)}to{opacity:1;transform:none}}}
@media(min-width:1600px){.container{width:min(1380px,calc(100% - 120px))}.hero-grid{gap:64px}.hero h1{font-size:4.3rem}.focus-clock{font-size:5rem}}
@media(max-width:1190px){.container{width:calc(100% - 64px)}.nav-inner{gap:18px}.nav-links{gap:14px}.nav-start{display:none}.hero-grid{gap:30px;grid-template-columns:.9fr 1.1fr}.hero h1{font-size:3.2rem}.space-grid{grid-template-columns:1fr}.sample-plan{border:1px solid var(--line);border-radius:8px;padding:6px 12px}.sample-plan-body{padding:0 2px 12px}.timer-panel{padding:20px 24px}.timer-toolbar{justify-content:center;gap:18px}.focus-clock{font-size:4.5rem}.sample-task{padding:12px 0}.daily-progress>div:first-child{gap:20px}.hero-actions .btn{padding:12px 14px}.intent-nav>a{padding:10px 14px;gap:12px}.ai-feature{padding:30px;gap:30px}.tools-grid>a{padding:14px}.tools-grid>a .icon:last-child{display:none}.android-band{gap:20px;padding:28px}.android-band>.btn{padding:12px 14px}.android-icon{padding:14px}.android-icon .icon{width:40px;height:40px}}
@media(max-width:900px){.nav-start{display:none}.nav-inner{min-height:72px}.nav-actions{margin-left:auto}.js .nav-toggle{display:flex!important}.js .nav-links{display:none;position:absolute;top:calc(100% + 8px);left:24px;right:24px;max-height:calc(100dvh - 96px);overflow:auto;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);padding:16px;border-radius:12px;margin:0;align-items:stretch;gap:0;font-size:1rem}.js .nav-links.is-open{display:flex;flex-direction:column}.nav-links>a{padding:13px 10px}.nav-dropdown>summary{padding:13px 10px;justify-content:space-between}.nav-popover{position:static;box-shadow:none;min-width:0;margin:0 0 8px;background:var(--page)}.nav-dropdown .icon{width:16px;height:16px}.nav-account{display:flex!important;align-items:center;justify-content:space-between;color:var(--blue);border-top:1px solid var(--line);margin-top:6px}.nav-toggle[aria-expanded=true] .menu-icon{display:none}.nav-toggle[aria-expanded=true] .close-icon{display:inline}.hero-grid{grid-template-columns:1fr 1fr;gap:24px}.hero h1{font-size:2.75rem}.hero-lead{font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch}.hero-trust{flex-wrap:wrap}.space-heading>a{display:none}.timer-toolbar{gap:8px}.timer-panel{padding:16px}.intent-nav>a{gap:8px;padding:8px}.intent-nav>a>.icon:first-child{width:24px;height:24px}.intent-nav strong{font-size:.875rem}.intent-nav small{font-size:.75rem}.intent-nav>a>.icon:last-child{display:none}.ai-feature{gap:24px;padding:24px}.ai-panel{padding:16px}.ai-panel-header{flex-wrap:wrap}.discovery-grid{grid-template-columns:1fr 1fr;gap:18px}.updates-panel{padding:18px}.panel-heading{align-items:start;flex-direction:column;gap:0}.scholarship-panel{padding:22px}.scholarship-form{grid-template-columns:1fr}.compact-heading{align-items:start}.tools-grid{grid-template-columns:1fr 1fr}.tools-grid>a:nth-child(2){border-right:0}.tools-grid>a:nth-child(-n+2){border-bottom:1px solid var(--line)}.android-band{flex-wrap:wrap}.android-band>div:nth-child(2){flex:1;min-width:240px}.android-band>.btn{margin-left:80px}.story-grid,.faq-grid{gap:32px}.footer-grid{gap:24px;grid-template-columns:1.4fr 1fr 1fr 1fr}.footer-brand .text-link{font-size:.8125rem}.fullscreen-brand span{display:none}}
@media(max-width:680px){html{scroll-padding-top:88px}.container{width:calc(100% - 40px)}.section{padding:25px 0}.nav-inner{min-height:68px;gap:10px}.brand{font-size:1.2rem;gap:8px}.brand img{width:32px;height:32px}.nav-actions{gap:8px}.login-link{font-size:.8125rem}.icon-button{min-width:40px;min-height:40px;border-radius:8px}.icon-button .icon{width:20px;height:20px}.js .nav-links{left:12px;right:12px}.hero{padding:34px 0 28px}.hero-grid{grid-template-columns:1fr;gap:28px}.hero h1{font-size:clamp(2.35rem,8.7vw,3.5rem);line-height:1.12;letter-spacing:-.05em}.hero h1 br{display:none}.hero .eyebrow{font-size:.6875rem;margin-bottom:16px}.hero-lead{font-size:1rem;line-height:1.7;margin-top:16px;max-width:none}.hero-actions{margin-top:22px;gap:10px}.hero-actions .btn{min-height:50px;font-size:.9375rem}.hero-trust{margin-top:14px;font-size:.8125rem;gap:8px}.hero-account{font-size:.8125rem;margin-top:4px}.study-space{padding:12px;border-radius:14px}.space-heading{padding:2px 3px 12px}.space-heading>span{font-size:.9375rem}.space-grid{gap:10px}.timer-panel{padding:20px;border-radius:10px}.focus-clock{font-size:4.8rem;margin-top:14px}.timer-toolbar{justify-content:space-between;gap:5px}.timer-toolbar button,.duration-control,.duration-control select{font-size:.8125rem}.focus-state{min-height:28px;font-size:.875rem}.timer-primary-actions{margin-top:14px}.timer-primary-actions .btn{min-height:48px}.subject-picker{margin-top:18px}.timer-modes button{min-height:38px}.timer-settings summary{min-height:40px}.sample-plan summary{min-height:42px}.sample-plan summary>span{gap:10px}.space-note{font-size:.75rem;line-height:1.6}.intent-nav{padding:6px;margin-top:20px;gap:0;border-radius:10px}.intent-nav>a{flex-direction:column;justify-content:center;gap:6px;text-align:center;padding:10px 4px;min-height:90px}.intent-nav small{display:none}.intent-nav strong{font-size:.75rem}.intent-nav>a>.icon:first-child{width:24px;height:24px}.ai-feature{grid-template-columns:1fr;padding:22px 16px;gap:22px;border-radius:14px}.ai-copy{padding:0 4px}.ai-copy h2{font-size:2rem}.ai-copy p{max-width:none;margin-top:14px;font-size:.9375rem}.ai-copy .btn{margin-top:18px}.ai-copy .ai-more{display:inline-flex;margin-left:8px;font-size:.8125rem}.ai-panel{padding:14px}.ai-panel-header{gap:8px;margin-bottom:14px}.ai-panel-header>span:first-child{font-size:.8125rem}.example-badge{font-size:.6875rem;padding:4px 5px}.ai-panel-header img{width:22px;height:22px}.example-answer{padding:13px}.example-user{font-size:.875rem}.ai-demo-form textarea{font-size:1rem}.section-heading h2{font-size:2rem}.section-heading p{font-size:.9375rem;line-height:1.7}.discovery-grid{grid-template-columns:1fr;gap:20px}.updates-panel{padding:18px 16px}.panel-heading{flex-direction:row;align-items:center;gap:12px;margin-bottom:10px}.panel-heading h3{font-size:1.1rem}.panel-heading 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.icon:last-child{display:block}.more-tools summary{line-height:1.5;padding:8px 0;font-size:.8125rem}.more-tools>div{display:grid;grid-template-columns:1fr 1fr;gap:10px}.android-band{display:block;padding:24px;border-radius:13px}.android-icon{display:inline-flex;padding:12px;margin-bottom:18px;border-radius:10px}.android-icon .icon{width:34px;height:34px}.android-band .eyebrow{font-size:.6875rem}.android-band h2{font-size:1.9rem}.android-band>div:nth-child(2){min-width:0}.android-band>.btn{margin:22px 0 0;width:100%}.story-grid{grid-template-columns:1fr;gap:20px;padding-top:6px;padding-bottom:6px}.story-grid h2{font-size:2rem}.story-grid>div:last-child{padding:0;border:0}.story-grid p{font-size:.9375rem}.creator{margin-top:16px}.faq-grid{grid-template-columns:1fr;gap:20px;padding-top:28px}.faq-grid h2{font-size:1.9rem}.faq-grid h2 br{display:none}.faq-list summary{font-size:.875rem;min-height:64px}.faq-list p{font-size:.875rem}.site-footer{margin-top:20px;padding-top:30px}.footer-grid{grid-template-columns:1fr;gap:0}.footer-brand{margin-bottom:22px}.footer-group{border-top:1px solid var(--line)}.footer-group summary{min-height:54px;font-size:.9375rem}.footer-group nav{grid-template-columns:1fr 1fr;margin:0;padding:4px 0 16px}.footer-group nav a{min-height:42px}.footer-bottom{display:block;margin-top:10px;font-size:.75rem}.footer-bottom>a{display:inline-flex;align-items:center;margin-top:8px}.sd-fullscreen-top{padding:16px;gap:8px}.fullscreen-brand img{width:32px;height:32px}.fullscreen-brand strong{font-size:1rem}.sd-fullscreen-now{gap:8px}.sd-fullscreen-now>span{font-size:.75rem}.sd-fullscreen-now button{font-size:.8125rem}.sd-fullscreen-center{width:calc(100% - 32px);margin:40px auto}.sd-fullscreen-clock{font-size:clamp(3.5rem,16vw,6rem)}.sd-fullscreen-topic{font-size:1.2rem}.sd-fullscreen-actions{gap:8px}.sd-fullscreen-actions button{font-size:.875rem;padding:10px 12px}.sd-fullscreen-progress-row{font-size:.8125rem}.sd-fullscreen-motto{font-size:.6875rem;letter-spacing:.09em}}
@media(max-width:370px){.container{width:calc(100% - 32px)}.nav-actions{gap:5px}.brand{font-size:1.1rem}.brand img{width:28px;height:28px}.login-link{font-size:.75rem}.timer-panel{padding:16px}.timer-toolbar{gap:3px}.timer-toolbar button,.duration-control select{font-size:.75rem}.panel-heading{flex-wrap:wrap;gap:2px}.hero h1{font-size:2.35rem}.ai-copy .ai-more{display:flex;margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{.site-header,.timer-toolbar,.timer-primary-actions,.ai-demo-form,.js-control{display:none!important}.hero-grid,.ai-feature,.discovery-grid,.story-grid,.faq-grid{display:block}.hero{padding:20px 0}.section{padding:12px 0}.container{width:100%}.study-space{box-shadow:none}.site-footer{margin:0}}

/* Without scripting, keep navigation and all discovery content usable. */
html:not(.js) .nav-inner{flex-wrap:wrap;padding-block:12px}html:not(.js) .nav-links{order:3;width:100%;margin:0;flex-wrap:wrap;justify-content:space-between}html:not(.js) .nav-links .nav-account{display:none!important}

@media(max-width:680px){.hero-account{display:none}}