@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap";
:root{--ink:#172033;--muted:#6e7890;--line:#e3e7ef;--paper:#f8f9fc;--card:#fff;--blue:#4666e7;--blue-dark:#2f49bd;--mint:#dff8ee;--mint-ink:#167c5a}*{box-sizing:border-box}html,body{max-width:100%;overflow-x:hidden}body{color:var(--ink);background:var(--paper);-webkit-tap-highlight-color:transparent;margin:0;font-family:DM Sans,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}.app-frame{min-height:100vh}.topbar{border-bottom:1px solid var(--line);z-index:5;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffe0;justify-content:space-between;align-items:center;height:76px;padding:0 clamp(20px,5vw,72px);display:flex;position:sticky;top:0}.brand{color:var(--ink);letter-spacing:-.04em;align-items:center;gap:10px;font-family:Space Grotesk,sans-serif;font-size:22px;font-weight:700;text-decoration:none;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#5576fa,#795cf2);border-radius:11px;place-items:center;width:32px;height:32px;display:grid;box-shadow:0 7px 18px #5268e344}.topnav{align-items:center;gap:6px;display:flex}.topnav a{color:var(--muted);border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;text-decoration:none}.topnav a:hover,.topnav a.active{color:var(--blue-dark);background:#edf0ff}n.topnav-deferred{color:#a2a9b8;padding:9px 14px;font-size:14px;font-weight:600}.mock-badge{color:#90651a;background:#fff3d7;border-radius:999px;padding:7px 11px;font-size:12px;font-weight:700}.workspace-shell{width:min(1180px,100% - 40px);margin:0 auto;padding:48px 0 90px}.hero-panel{color:#fff;background:radial-gradient(circle at 85% 20%,#738cff,#0000 34%),linear-gradient(125deg,#202b56 0%,#344790 52%,#5369d8 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#394ed51a}.tile-topline,.tile-meta,.tile-actions,.button-row{align-items:center;display:flex}.tile-topline,.tile-meta{justify-content:space-between}.category-pill,.card-type{color:#5e6b84;letter-spacing:.08em;background:#f0f2f7;border-radius:7px;padding:5px 8px;font-size:10px;font-weight:700;display:inline-block}.more-button,.icon-button{color:#9199aa;background:0 0;border:0}.more-button{letter-spacing:2px;place-items:center;min-width:44px;min-height:44px;padding:3px 0 3px 9px;display:grid}.deck-tile h3{letter-spacing:-.035em;margin:27px 0 9px;font:700 20px Space Grotesk,sans-serif}.tile-description{min-height:45px;color:var(--muted);margin:0 0 22px;font-size:13px;line-height:1.55}.tile-meta{border-top:1px solid var(--line);color:#8a92a3;padding:13px 0;font-size:11px}.tile-actions{gap:7px;margin-top:12px}.primary-button,.secondary-button,.quiet-button,.icon-button{border:1px solid #0000;border-radius:9px;min-height:44px;padding:9px 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13px max(20px, env(safe-area-inset-left));flex-wrap:wrap;gap:10px}.topnav{order:3;width:100%;overflow-x:auto}.topnav a{white-space:nowrap}.mock-badge{margin-left:auto}.workspace-shell{width:min(100% - 28px,560px);padding-top:25px;padding-bottom:max(90px, env(safe-area-inset-bottom))}.hero-panel{align-items:flex-end;min-height:330px}.hero-orb{opacity:.35;position:absolute;transform:translate(45px,-130px)}.stats-row{grid-template-columns:1fr;gap:9px;margin-bottom:36px}.deck-grid{grid-template-columns:1fr}.tile-actions .primary-button{flex:100%}.section-heading h2{font-size:23px}.card-preview-panel{padding:18px}.card-row{gap:10px}}.study-shell{width:min(1180px,100% - 40px);margin:0 auto;padding:46px 0 90px}.study-heading{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:22px;display:flex}.study-heading h1{letter-spacing:-.055em;margin:8px 0 10px;font:700 clamp(34px,5vw,54px)/1.02 Space Grotesk,sans-serif}.study-heading 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.state-icon{background:#e6a338}.study-complete-state .state-icon{background:#25a477}.study-state-action{margin-top:21px;text-decoration:none}.study-skeleton{background:linear-gradient(90deg,#f0f2f7 25%,#fafbfe 50%,#f0f2f7 75%) 0 0/200% 100%;border-radius:10px;animation:1.3s infinite study-shimmer}.study-skeleton-line{width:65%;height:12px}.study-skeleton-card{border-radius:19px;width:min(100%,570px);height:270px;margin:23px 0 17px}.study-skeleton-buttons{width:min(100%,570px);height:52px}@keyframes study-shimmer{to{background-position:-200% 0}}.study-review-wrap{max-width:650px;margin:25px auto 0}.study-progress-meta{color:var(--muted);justify-content:space-between;gap:12px;font-size:12px;font-weight:700;display:flex}.study-progress-track{background:#edf0f6;border-radius:999px;height:7px;margin:10px 0 18px;overflow:hidden}.study-progress-track span{border-radius:inherit;background:linear-gradient(90deg,#5576fa,#795cf2);height:100%;transition:width .25s;display:block}.study-card{width:100%;min-height:292px;color:var(--ink);text-align:center;background:linear-gradient(145deg,#fff,#f7f8ff);border:1px solid #dfe4f3;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:36px clamp(20px,6vw,58px);transition:all .2s;display:flex;box-shadow:0 14px 35px #394ed510}.study-card:hover{border-color:#acbaff;transform:translateY(-2px);box-shadow:0 16px 40px #394ed51f}.study-card.revealed{background:linear-gradient(145deg,#fff,#f1fcf7);border-color:#b8ecd9}.study-card-kicker{color:var(--blue);text-transform:uppercase;letter-spacing:.15em;font-size:10px;font-weight:700}.study-card.revealed .study-card-kicker{color:var(--mint-ink)}.study-card strong{overflow-wrap:anywhere;letter-spacing:-.04em;max-width:560px;font:700 clamp(24px,4vw,35px)/1.22 Space 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11px}.auth-dev-card input:focus{border-color:#9eafff;box-shadow:0 0 0 3px #4666e714}.auth-dev-card button{margin-top:18px}.auth-dev-session{justify-content:space-between;align-items:center;gap:18px;margin-top:16px;display:flex}.auth-dev-session h2{margin-bottom:7px}.auth-dev-session p:not(.eyebrow){color:var(--muted);margin:0;font-size:13px;line-height:1.55}.auth-dev-muted{color:#9ba4b6!important}.auth-dev-actions{flex-wrap:wrap;gap:8px;display:flex}.auth-dev-actions button{margin-top:0}.auth-dev-footnote{color:var(--muted);background:#f1f3ff}.auth-dev-footnote code{color:var(--blue-dark)}@media (max-width:620px){.auth-dev-shell{width:min(100% - 28px,560px);padding-top:32px;padding-bottom:max(90px, env(safe-area-inset-bottom))}.auth-dev-grid{grid-template-columns:1fr}.auth-dev-card{padding:18px}.auth-dev-session{flex-direction:column;align-items:flex-start}.auth-dev-actions{width:100%}.auth-dev-actions button{flex:1 1 0}}.deck-state-card{border:1px solid 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button{flex:1;min-height:44px}}.topbar,.topnav{min-width:0}.mock-badge{white-space:nowrap}.card-row>div:not(.card-row-actions),.card-row strong,.card-row p{overflow-wrap:anywhere;min-width:0}@media (max-width:620px){.topbar{padding-inline:max(14px, env(safe-area-inset-left)) max(14px, env(safe-area-inset-right));align-items:center}.brand{gap:7px;font-size:20px}.brand-mark{width:30px;height:30px}.mock-badge{text-overflow:ellipsis;max-width:112px;overflow:hidden}.topnav{flex-wrap:wrap;gap:4px;display:flex;overflow:visible}.topnav a{align-items:center;min-height:44px;padding-inline:11px;display:inline-flex}.hero-panel{padding:28px 22px;position:relative}.workspace-notice{align-items:flex-start;line-height:1.45}.section-heading{flex-wrap:wrap;align-items:flex-start}.section-heading>.button-row,.section-heading>.primary-button,.section-heading>.secondary-button{width:100%}.section-heading>.button-row button{flex:1 1 0}.deck-tile{padding:18px}.tile-actions{flex-wrap:wrap}.tile-actions 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