:root{color-scheme:light;--bg: #f5f7fb;--surface: #ffffff;--surface-2: #eef6f2;--surface-3: #f8fafc;--text: #1f2937;--muted: #64748b;--line: #d8e0ea;--primary: #005a9c;--primary-hover: #004b83;--primary-soft: #eaf4ff;--primary-2: #0f766e;--accent: #f6b73c;--accent-strong: #ff6b35;--danger: #dc3545;--success: #1d8f52;--focus: #f97316;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--shadow-sm: 0 4px 14px rgba(15, 23, 42, .06);--shadow: 0 10px 30px rgba(15, 23, 42, .08);--shadow-lg: 0 22px 55px rgba(15, 23, 42, .14);--casual: #0f766e;--ranked: #c26713;--tests: #6d55b3}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,.button,input,select,textarea{font:inherit}input:is([type=checkbox],[type=radio],[type=range]){min-height:0}button,.button{min-height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);padding:8px 12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1.2;max-width:100%;text-align:center;transition:transform .14s ease,border-color .14s ease,background-color .14s ease,color .14s ease,box-shadow .14s ease}button:not(:disabled):active,.button:not([aria-disabled=true]):active{transform:translateY(1px)}@media(hover:hover){button:not(:disabled):hover,.button:not([aria-disabled=true]):hover{border-color:#b8c5d4;box-shadow:var(--shadow-sm)}button.primary:not(:disabled):hover,.button.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}}button:disabled{cursor:not-allowed;opacity:.55}.primary,button.primary,.button.primary{background:var(--primary);color:#fff;border-color:var(--primary)}:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:3px solid var(--focus);outline-offset:3px}input:focus-visible,select:focus-visible,textarea:focus-visible{border-color:var(--primary);box-shadow:0 0 0 3px #005a9c24}.quiet{background:transparent}input,select,textarea{width:100%;border:1px solid var(--line);min-height:44px;border-radius:var(--radius-sm);background:#fff;color:var(--text);padding:9px 10px}.skip-link{position:fixed;z-index:100;top:10px;left:10px;transform:translateY(-160%);border-radius:var(--radius-sm);background:var(--text);color:#fff;padding:10px 14px;font-weight:900;box-shadow:var(--shadow-lg)}.skip-link:focus-visible{transform:translateY(0)}.icon-button{width:44px;height:44px;min-height:44px;padding:0;flex:0 0 auto}textarea{resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:700}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:ui-rounded,SF Pro Rounded,Segoe UI,system-ui,sans-serif;letter-spacing:-.025em}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.pricing-card-loading:after{animation:none}}.boot-screen,.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-wrap{background:radial-gradient(circle at 12% 14%,rgba(246,183,60,.15),transparent 28%),radial-gradient(circle at 86% 82%,rgba(15,118,110,.14),transparent 30%),var(--bg)}.auth-panel{width:min(460px,100%);min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(22px,5vw,32px);box-shadow:var(--shadow-lg);display:grid;gap:18px}.auth-heading h1{margin-bottom:6px}.auth-heading p{margin:0;color:var(--muted);line-height:1.55}.auth-form{display:grid;gap:14px;min-width:0}.auth-field{display:grid;gap:6px;min-width:0}.auth-field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.password-control{position:relative;display:block}.password-control input{padding-right:52px}.password-toggle{position:absolute;top:0;right:0;border:0;background:transparent;color:var(--muted)}.form-helper{color:var(--muted);font-size:12px;font-weight:600;line-height:1.4}.auth-submit,.auth-form .google-button{width:100%;min-height:48px}.auth-switch{margin:-2px 0 0}.auth-switch a{color:var(--primary);font-weight:900}.auth-divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.auth-divider:before,.auth-divider:after{content:"";height:1px;flex:1;background:var(--line)}.google-button{background:#fff;border-color:#cbd5e1;color:var(--text);font-weight:800}.google-mark{width:20px;height:20px;border:1px solid var(--line);border-radius:50%;color:#1a73e8;display:inline-grid;place-items:center;font-weight:900;line-height:1}.brand{display:inline-flex;align-items:center}.brand img{display:block;width:170px;max-width:100%;height:auto}.brand.compact img{width:140px}.welcome-shell{min-height:100vh;background:linear-gradient(135deg,#fff8e0e6,#ecfdf5eb 38%,#eff6fff5),var(--bg);overflow-x:hidden}.topbar{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--line)}.top-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.top-language-select{width:auto;min-width:68px;min-height:44px;padding:8px 28px 8px 10px;font-size:14px;font-weight:900}.legal-links{display:flex;align-items:center;flex-wrap:wrap;gap:8px 14px;color:var(--muted);font-size:13px;font-weight:800}.legal-links a:hover,.sidebar-legal a:hover,.legal-contact a:hover,.provider-links a:hover{color:var(--primary)}.public-footer{max-width:1120px;margin:0 auto;padding:20px 24px 32px}.intro-band{padding:56px 24px 34px;max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.75fr);gap:36px;align-items:center}.intro-copy{display:grid;gap:18px;min-width:0}.hero-kicker{width:fit-content;display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(15,118,110,.18);border-radius:999px;background:#ffffffbd;color:var(--primary-2);padding:8px 12px;font-size:13px;font-weight:900;box-shadow:0 12px 28px #0f172a12}.intro-band h1{font-size:clamp(38px,7vw,74px);line-height:1.05;max-width:780px;margin-bottom:0;color:#10243f}.intro-band p{color:var(--muted);max-width:640px;font-size:clamp(17px,2vw,21px);line-height:1.6;margin-bottom:0}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.hero-actions .button{min-height:48px;padding:12px 18px;font-weight:900}.hero-primary,button.hero-primary,.button.hero-primary{border-color:#ff6b35;background:#ff6b35;color:#fff;box-shadow:0 14px 28px #ff6b3538}.hero-secondary{border-color:#005a9c2e;background:#ffffffc7;color:var(--primary)}.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;max-width:650px}.hero-stat{min-height:86px;border:1px solid rgba(216,224,234,.74);border-radius:8px;background:#ffffffb8;padding:14px;display:grid;align-content:center;gap:5px;box-shadow:0 12px 30px #0f172a0f}.hero-stat strong{font-size:clamp(26px,4vw,36px);line-height:1;color:#10243f}.hero-stat span{color:var(--muted);font-size:13px;font-weight:800;line-height:1.25}.hero-visual{position:relative;width:min(100%,430px);min-height:390px;justify-self:end;pointer-events:none}.hero-visual:before{content:"";position:absolute;top:32px;right:10px;bottom:24px;left:28px;border-radius:50%;background:radial-gradient(circle at 24% 26%,rgba(246,183,60,.42),transparent 30%),radial-gradient(circle at 72% 34%,rgba(0,90,156,.28),transparent 34%),radial-gradient(circle at 52% 76%,rgba(15,118,110,.28),transparent 34%);filter:blur(2px)}.logic-trail{position:absolute;top:22px;right:0;bottom:30px;left:0}.logic-trail:before{content:"";position:absolute;top:52px;right:38px;bottom:76px;left:46px;background:linear-gradient(32deg,transparent 46%,rgba(16,36,63,.18) 47%,rgba(16,36,63,.18) 53%,transparent 54%),linear-gradient(145deg,transparent 46%,rgba(16,36,63,.16) 47%,rgba(16,36,63,.16) 53%,transparent 54%),linear-gradient(75deg,transparent 47%,rgba(16,36,63,.13) 48%,rgba(16,36,63,.13) 52%,transparent 53%)}.logic-node{position:absolute;width:clamp(74px,9vw,96px);aspect-ratio:1;border:4px solid rgba(255,255,255,.84);border-radius:50%;display:grid;place-items:center;color:#10243f;font-size:clamp(26px,4vw,38px);font-weight:950;box-shadow:0 20px 36px #0f172a24}.node-a{left:8%;top:7%;background:#ffe08a}.node-b{right:18%;top:0;background:#a7f3d0}.node-c{left:39%;top:35%;width:clamp(94px,12vw,128px);background:#bfdbfe;color:var(--primary)}.node-d{left:4%;bottom:6%;background:#fed7aa}.node-e{right:5%;bottom:11%;background:#c7d2fe}.logic-grid{position:absolute;right:0;bottom:0;width:170px;display:grid;grid-template-columns:repeat(3,1fr);gap:9px;opacity:.82}.logic-grid span{aspect-ratio:1;border:2px solid rgba(255,255,255,.78);border-radius:8px;background:#ffffff6b;box-shadow:0 12px 24px #0f172a14}.welcome-samples{max-width:1180px;margin:0 auto;padding:18px 24px 0}.welcome-pricing{max-width:1080px;margin:18px auto 12px;padding:clamp(24px,5vw,46px);border:1px solid rgba(216,224,234,.78);border-radius:var(--radius-lg);background:#ffffffd6;box-shadow:var(--shadow);display:grid;gap:22px}.welcome-section-heading{max-width:720px;margin:0 auto;display:grid;justify-items:center;gap:10px;text-align:center}.welcome-section-heading h2{margin:0;color:#10243f;font-size:clamp(30px,5vw,46px)}.welcome-section-heading p,.pricing-footnote{color:var(--muted);margin:0}.welcome-section-heading p{font-size:17px;line-height:1.6}.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.pricing-card{position:relative;min-width:0;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;padding:clamp(18px,3vw,26px);box-shadow:var(--shadow-sm);display:grid;align-content:start;gap:12px}.pricing-card.featured{border:2px solid var(--primary);background:linear-gradient(155deg,#fff 25%,var(--primary-soft) 100%);box-shadow:0 18px 36px #005a9c24}.pricing-card.current{border-color:var(--success);box-shadow:0 0 0 2px #1d8f521a}.pricing-card-topline{min-height:30px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;color:#10243f;font-weight:950}.pricing-badge{display:inline-flex;align-items:center;gap:5px;border-radius:999px;background:var(--primary);color:#fff;padding:6px 9px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.04em}.pricing-badge.current{background:var(--success)}.pricing-price-row{display:flex;align-items:baseline;gap:6px;min-width:0}.pricing-price-row strong{color:#10243f;font-size:clamp(36px,6vw,54px);line-height:1;letter-spacing:-.05em}.pricing-price-row span{color:var(--muted);font-weight:800}.pricing-plan-detail,.pricing-saving,.pricing-trial,.pricing-tax-note{margin:0;line-height:1.45}.pricing-plan-detail{min-height:24px;color:var(--muted);font-weight:700}.pricing-saving{color:var(--success);font-weight:900}.pricing-trial{border-radius:var(--radius-sm);background:#fff7dd;color:#8a4b08;padding:9px 10px;font-weight:900}.pricing-tax-note{color:var(--muted);font-size:12px}.pricing-cta{width:100%;min-height:48px;margin-top:auto;font-weight:900}.pricing-includes{list-style:none;margin:0;padding:0;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px 22px}.pricing-includes li{display:inline-flex;align-items:center;gap:7px;color:#334155;font-weight:800}.pricing-includes svg{color:var(--success);flex:0 0 auto}.pricing-footnote,.pricing-unavailable{text-align:center;font-size:13px}.pricing-unavailable{border:1px solid #fed7aa;border-radius:var(--radius-sm);background:#fff7ed;color:#9a3412;margin:0;padding:12px;font-weight:800}.pricing-card-loading{min-height:330px;overflow:hidden;background:#eef2f7}.pricing-card-loading:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.78) 48%,transparent 66%);transform:translate(-100%);animation:pricing-shimmer 1.2s infinite}@keyframes pricing-shimmer{to{transform:translate(100%)}}.welcome-samples .page-stack{max-width:none}.welcome-samples .page-header{padding:18px;border:1px solid rgba(216,224,234,.72);border-radius:8px;background:#ffffffbd;box-shadow:0 12px 28px #0f172a0f;display:grid;grid-template-columns:minmax(0,1fr) auto}.welcome-samples .page-header h1{font-size:clamp(28px,4vw,42px)}.welcome-samples .page-header h2{margin-bottom:6px;font-size:clamp(28px,4vw,42px)}.feedback-action{min-height:0;border:0;background:transparent;color:inherit;padding:2px 4px;font-weight:900;text-decoration:underline}.welcome-samples .segmented{padding:4px;border:1px solid rgba(216,224,234,.78);border-radius:8px;background:#ffffffb8}.welcome-samples .segmented button{flex:1 1 76px;font-weight:900}.welcome-samples .work-surface{border-color:#d8e0eab8;box-shadow:0 18px 45px #0f172a1a}.app-shell{display:grid;min-height:100vh;grid-template-columns:250px 1fr}.mobile-app-header,.mobile-bottom-nav{display:none}#main-content:focus{outline:none}.sidebar{background:var(--surface);border-right:1px solid var(--line);padding:20px 16px;display:flex;flex-direction:column;gap:22px}.sidebar nav{display:grid;gap:6px}.sidebar nav a,.sidebar .quiet{display:inline-flex;align-items:center;justify-content:flex-start;gap:8px;border-radius:8px;padding:10px 12px;color:var(--muted);min-width:0;text-align:left;line-height:1.15}.sidebar nav a svg,.sidebar .quiet svg{flex:0 0 auto;display:block;width:18px;height:18px;stroke-width:2.25;transform:translateY(.5px)}.sidebar nav a.active{background:#eaf4ff;color:var(--primary);font-weight:800}.sidebar-legal{border-top:1px solid var(--line);padding:12px 12px 0;display:grid;gap:8px}.sidebar-legal a{color:var(--muted);font-size:13px;font-weight:800}.sidebar .quiet{margin-top:auto}.main-panel{padding:28px;overflow-x:hidden}.app-footer{display:none}.page-stack{display:grid;gap:18px;max-width:1180px;margin:0 auto}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.page-header h1{margin-bottom:6px}.page-header p{color:var(--muted);margin-bottom:0}.status-pill{background:var(--surface-2);color:var(--primary-2);border:1px solid #cde6dc;border-radius:999px;padding:7px 11px;font-weight:800}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.metric-grid.compact{grid-template-columns:repeat(3,minmax(140px,1fr))}.metric-tile{min-height:120px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;display:grid;align-content:center;gap:8px;box-shadow:var(--shadow)}.metric-tile svg{color:var(--primary)}.metric-tile span{color:var(--muted)}.dashboard-page{gap:20px}.dashboard-hero{border:1px solid var(--line);border-radius:8px;background:linear-gradient(135deg,#eaf4fff0,#f0fdf4f5 58%,#fff7edeb),var(--surface);box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.42fr);gap:24px;align-items:end}.dashboard-kicker{width:fit-content;border:1px solid rgba(0,90,156,.18);border-radius:999px;background:#ffffffbd;color:var(--primary);display:inline-flex;align-items:center;padding:7px 10px;font-size:12px;font-weight:900;margin-bottom:12px}.dashboard-hero h1{font-size:clamp(32px,5vw,56px);line-height:1.05;margin-bottom:10px;color:#10243f}.dashboard-hero p{color:var(--muted);line-height:1.55;max-width:680px;margin-bottom:0}.dashboard-hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px}.dashboard-focus{border-left:4px solid var(--accent);padding:4px 0 4px 16px;display:grid;gap:6px}.dashboard-hero-side{display:grid;gap:16px}.dashboard-daily-goal{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;border:1px solid rgba(0,90,156,.16);border-radius:var(--radius-md);background:#ffffffc2;padding:13px}.dashboard-daily-goal.done{border-color:#bbf7d0;background:#ecfdf3db}.dashboard-goal-ring{width:48px;height:48px;border-radius:50%;display:inline-grid;place-items:center;background:var(--primary-soft);color:var(--primary);box-shadow:inset 0 0 0 5px #005a9c1f}.dashboard-daily-goal.done .dashboard-goal-ring{background:#dcfce7;color:var(--success);box-shadow:inset 0 0 0 5px #1d8f5221}.dashboard-goal-copy{min-width:0;display:grid;gap:3px}.dashboard-goal-copy small{color:var(--muted);font-size:11px;font-weight:900;text-transform:uppercase}.dashboard-goal-copy strong{line-height:1.3}.dashboard-focus span{color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase}.dashboard-focus strong{font-size:20px;line-height:1.2}.dashboard-stat-strip{display:grid;grid-template-columns:minmax(190px,1.3fr) repeat(4,minmax(0,1fr));gap:12px}.dashboard-stat{min-height:96px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);padding:14px;display:grid;align-content:center;gap:7px}.dashboard-stat span{color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase}.dashboard-stat strong{font-size:26px;line-height:1}.skeleton-value{display:block;width:70%;height:26px;border-radius:999px;background:linear-gradient(90deg,#e2e8f0 20%,#f8fafc,#e2e8f0 70%);background-size:240% 100%;animation:skeleton-shimmer 1.35s ease-in-out infinite}.dashboard-stat small{color:var(--muted);font-size:12px;font-weight:800;line-height:1.35}.dashboard-stat-streak{border-color:#fed7aa;background:linear-gradient(135deg,#fff7edf5,#ecfdf3f5),var(--surface)}.dashboard-stat-streak span{color:#9a3412;display:inline-flex;align-items:center;gap:6px}.dashboard-stat-streak strong{font-size:30px}.dashboard-section{display:grid;gap:12px}.dashboard-mode-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.dashboard-mode-card{min-height:148px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);padding:16px;display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:1fr auto;gap:12px}.dashboard-mode-card:hover{border-color:#bfdbfe;box-shadow:0 14px 34px #0f172a1c}.dashboard-mode-card.mode-casual:not(.locked) .dashboard-mode-icon{background:#e6fffb;color:var(--casual)}.dashboard-mode-card.mode-ranked .dashboard-mode-icon{background:#fff7e6;color:var(--ranked)}.dashboard-mode-card.mode-tests .dashboard-mode-icon{background:#f3efff;color:var(--tests)}.dashboard-mode-card.mode-casual:not(.locked){border-top:3px solid var(--casual)}.dashboard-mode-card.mode-ranked{border-top:3px solid var(--ranked)}.dashboard-mode-card.mode-tests{border-top:3px solid var(--tests)}.dashboard-mode-card.locked{background:#fff7ed;border-color:#fed7aa}.dashboard-mode-icon{width:42px;height:42px;border-radius:999px;background:#eaf4ff;color:var(--primary);display:inline-grid;place-items:center}.dashboard-mode-card.locked .dashboard-mode-icon{background:#ffedd5;color:#9a3412}.dashboard-mode-main{min-width:0;display:grid;gap:5px}.dashboard-mode-main strong{font-size:18px}.dashboard-mode-main span{color:var(--muted);line-height:1.4}.dashboard-mode-action{grid-column:1 / -1;color:var(--primary);display:inline-flex;align-items:center;gap:6px;font-weight:900}.dashboard-mode-card.locked .dashboard-mode-action{color:#9a3412}.dashboard-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start}.dashboard-activity-list .activity-main strong,.dashboard-activity-list .activity-main span{white-space:normal}.work-surface{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:var(--shadow);display:grid;align-content:start;gap:14px;min-width:0}.work-surface>:is(h2,h3,p){margin-bottom:0}.ad-slot{width:100%;min-height:118px;border:1px solid var(--line);border-radius:8px;background:#f8fafc;display:grid;gap:8px;align-content:start;padding:10px;overflow:hidden}.ad-slot-label{color:var(--muted);font-size:11px;font-weight:900;line-height:1;text-transform:uppercase}.ad-slot .adsbygoogle,.ad-slot-placeholder{display:block;width:100%;min-height:90px}.ad-slot-placeholder{border:1px dashed #cbd5e1;border-radius:8px;color:var(--muted);display:grid;place-items:center;font-size:13px;font-weight:800;text-align:center}.test-session-topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;position:sticky;top:14px;z-index:12;background:#fffffff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.test-session-topbar>div{display:grid;gap:3px}.test-session-topbar strong{font-size:28px;line-height:1}.test-save-state{margin-left:auto;display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;font-weight:800}.test-save-state.saving{color:var(--primary)}.test-save-state.error{color:var(--danger)}.test-question-navigator{gap:12px}.test-question-navigator-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.test-question-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:8px}.test-question-grid button{min-width:48px;min-height:48px;padding:7px;display:inline-flex;flex-direction:column;gap:1px;color:var(--muted);font-size:12px;font-weight:900}.test-question-grid button.answered{border-color:#bfdbfe;background:var(--primary-soft);color:var(--primary)}.test-question-grid button.current{box-shadow:0 0 0 3px #005a9c2e;border-color:var(--primary)}.test-question-grid button.correct{border-color:#bbf7d0;background:#ecfdf3;color:var(--success)}.test-question-grid button.wrong{border-color:#fecdd3;background:#fff1f2;color:var(--danger)}.test-question-actions{justify-content:space-between}.test-question-actions button{min-width:min(100%,140px)}.test-review-summary{gap:16px}.historical-comparison{display:grid;gap:12px}.comparison-header{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.comparison-header h3{margin-bottom:4px}.comparison-header p{margin-bottom:0;color:var(--text);font-weight:800}.comparison-grade-switch{display:inline-flex;flex-wrap:wrap;gap:8px}.comparison-grade-switch button.active{background:var(--primary);border-color:var(--primary);color:#fff}.achievement-pill{width:fit-content;display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;background:#f8fafc;color:var(--muted);padding:7px 10px;font-size:12px;font-weight:900;white-space:nowrap}.achievement-pill.distinction{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.achievement-pill.very_good{background:#eaf4ff;border-color:#bfdbfe;color:var(--primary)}.achievement-pill.laureate{background:#fff7ed;border-color:#fed7aa;color:#9a3412}.comparison-chart{--comparison-label-height: 30px;height:190px;display:flex;align-items:stretch;gap:7px;padding-top:8px;min-width:0;overflow-x:auto}.comparison-bar-wrap{flex:1 0 52px;min-width:52px;height:100%;display:grid;grid-template-rows:minmax(0,1fr) var(--comparison-label-height);gap:6px;align-items:stretch}.comparison-bar{align-self:end;width:100%;min-height:8px;border-radius:6px 6px 2px 2px;background:#dbeafe;border:1px solid #bfdbfe}.comparison-bar.active{background:var(--accent);border-color:#d99920;box-shadow:0 0 0 3px #f6b73c2e}.comparison-bar-wrap span{height:var(--comparison-label-height);display:flex;align-items:flex-start;justify-content:center;color:var(--muted);font-size:11px;font-weight:800;line-height:1.15;text-align:center;overflow:hidden;overflow-wrap:normal}.auth-consent{align-items:flex-start;color:var(--text);font-weight:600;line-height:1.5}.auth-consent span{flex:1 1 0;min-width:0;overflow-wrap:anywhere}.auth-consent input{flex:0 0 auto;margin-top:3px}.auth-consent a{color:var(--primary);font-weight:900}.legal-shell{min-height:100vh;background:var(--bg)}.legal-topbar .top-actions{justify-content:flex-end}.legal-main{max-width:1040px;margin:0 auto;padding:32px 24px 48px;display:grid;gap:18px}.legal-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,240px);gap:20px;align-items:end}.legal-hero h1{font-size:clamp(32px,4vw,48px);line-height:1.08;margin-bottom:10px}.legal-hero p{color:var(--muted);line-height:1.7;max-width:760px;margin-bottom:0}.language-control{align-content:start}.legal-tabs{display:flex;flex-wrap:wrap;gap:8px;border-bottom:1px solid var(--line)}.legal-tabs a{border:1px solid transparent;border-bottom:0;border-radius:8px 8px 0 0;color:var(--muted);font-weight:900;margin-bottom:-1px;padding:10px 14px}.legal-tabs a.active{background:var(--surface);border-color:var(--line);color:var(--primary)}.legal-document{background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:28px;display:grid;gap:24px}.legal-meta{display:flex;flex-wrap:wrap;gap:10px 18px;color:var(--muted);font-size:13px;font-weight:800}.legal-summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}.legal-summary h2,.legal-section h2,.legal-contact h2{font-size:20px;margin-bottom:10px}.legal-section{display:grid;gap:10px}.legal-section p,.legal-section li,.legal-contact p{line-height:1.65}.legal-section p,.legal-section ul,.legal-summary ul,.legal-contact p{margin-bottom:0}.legal-section ul,.legal-summary ul{display:grid;gap:8px;margin-top:0;padding-left:22px}.provider-links{display:flex;flex-wrap:wrap;gap:8px}.provider-links a{background:#f8fafc;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;font-weight:800;padding:7px 10px}.legal-contact{border-top:1px solid var(--line);display:grid;gap:8px;padding-top:20px}.legal-contact a{color:var(--primary);font-weight:900}.filters{display:flex;align-items:flex-end;flex-wrap:wrap;gap:12px}.toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.toolbar>button,.toolbar>.button{flex:0 1 auto}.billing-header{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.billing-header h2{margin-bottom:6px}.billing-header p,.billing-hint,.pro-benefits p{color:var(--muted);margin-bottom:0}.billing-state{flex:0 0 auto;border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:13px;font-weight:900}.billing-state.active{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.billing-state.free{background:#f8fafc;color:var(--muted)}.billing-overview{border:1px solid var(--line);border-radius:8px;padding:14px;display:flex;align-items:center;gap:12px;background:#f8fafc}.billing-overview.active{border-color:#bbf7d0;background:#f0fdf4}.billing-overview.free{border-color:#cbd5e1}.billing-overview-icon,.pro-benefit-icon,.locked-access-icon{flex:0 0 auto;width:38px;height:38px;border-radius:999px;display:inline-grid;place-items:center}.billing-overview-icon{background:#fff;color:var(--primary);border:1px solid var(--line)}.billing-overview.active .billing-overview-icon{color:var(--success);border-color:#bbf7d0}.billing-overview>div>strong,.billing-overview>div>span{display:block}.billing-overview>div>strong{margin-bottom:3px}.billing-overview>div>span{color:var(--muted);line-height:1.45}.billing-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:10px;margin:0}.billing-details div{min-height:92px;border:1px solid var(--line);border-radius:8px;padding:12px;background:#f8fafc;display:grid;align-content:center;gap:6px}.billing-details dt{color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase}.billing-details dd{margin:0;display:inline-flex;align-items:center;gap:7px;font-weight:800;line-height:1.35}.billing-details dd svg{flex:0 0 auto;color:var(--primary)}.billing-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.billing-actions button{min-width:min(100%,190px)}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;min-width:0}.section-heading:has(>.section-icon){justify-content:flex-start;gap:12px}.section-heading.compact h3{margin-bottom:4px}.section-heading h2,.section-heading h3{margin-bottom:6px}.section-heading p{color:var(--muted);line-height:1.45;margin-bottom:0}.section-icon{flex:0 0 auto;width:36px;height:36px;border:1px solid var(--line);border-radius:999px;background:#f8fafc;color:var(--primary);display:inline-grid;place-items:center}.section-icon.danger{border-color:#fecdd3;background:#fff1f2;color:var(--danger)}:is(.billing-overview-icon,.pro-benefit-icon,.locked-access-icon,.section-icon,.dashboard-mode-icon,.status-icon,.empty-state-icon)>svg{display:block;flex:0 0 auto}.profile-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),340px));justify-content:start;gap:12px;align-items:end}.profile-form-grid button{min-width:min(100%,170px)}.account-subsection{border-top:1px solid var(--line);padding-top:14px;display:grid;gap:12px}.danger-zone{border-color:#fecdd3}.danger-button{background:var(--danger);border-color:var(--danger);color:#fff}.account-close-list{margin:0;padding-left:20px;color:var(--muted);line-height:1.5}.pro-benefits{border-top:1px solid var(--line);padding-top:14px;display:grid;gap:12px}.pro-benefits h3{margin-bottom:4px}.pro-benefit-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.pro-benefit-list li{border:1px solid var(--line);border-radius:8px;padding:12px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;background:#fff}.pro-benefit-list li>span:nth-child(2){display:grid;gap:3px;min-width:0}.pro-benefit-list li>span:nth-child(2) span{color:var(--muted);line-height:1.35}.pro-benefit-icon{width:34px;height:34px}.pro-benefit-icon.available{background:#ecfdf3;color:var(--success)}.pro-benefit-icon.locked{background:#fff7ed;color:#9a3412}.pro-benefit-list em{color:var(--muted);font-size:12px;font-style:normal;font-weight:900;white-space:nowrap}.locked-access-panel{border:1px solid #fed7aa;border-radius:8px;background:#fff7ed;padding:16px;box-shadow:var(--shadow);display:grid;gap:12px}.locked-access-copy{display:flex;align-items:flex-start;gap:12px}.locked-access-icon{background:#ffedd5;color:#9a3412}.locked-access-copy h2{font-size:20px;margin-bottom:4px}.locked-access-copy p{color:var(--muted);line-height:1.5;margin-bottom:0}.locked-access-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.locked-access-list li{min-height:34px;border:1px solid #fed7aa;border-radius:999px;background:#fff;color:#9a3412;display:inline-flex;align-items:center;gap:6px;padding:7px 10px;font-size:13px;font-weight:900}.practice-actions button{min-width:min(100%,148px)}.filters label{min-width:150px}.admin-filters label{flex:1 1 150px}.admin-filters input,.admin-filters select{width:100%}.admin-import{gap:16px}.import-header,.image-import-header,.image-slot-title-row,.image-slot-actions{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;min-width:0}.import-header h2,.image-import-header h3{margin-bottom:4px}.file-button{display:inline-flex;color:var(--text);font-size:14px;font-weight:800;flex:0 0 auto;position:relative}.image-import-panel{border:1px solid var(--line);border-radius:8px;background:#f8fafc;padding:14px;display:grid;gap:12px}.image-slot-list{display:grid;gap:10px}.image-slot{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:12px;min-width:0}.image-slot.missing{border-color:#fecdd3;background:#fff7f8}.image-slot-preview{width:90px;height:90px;border:1px dashed var(--line);border-radius:8px;background:#f8fafc;color:var(--muted);display:grid;place-items:center;overflow:hidden}.image-slot-preview img{width:100%;height:100%;object-fit:contain}.image-slot-main{min-width:0;display:grid;gap:7px}.image-slot-title-row strong{min-width:0;overflow-wrap:anywhere}.image-slot code{width:fit-content;max-width:100%;border:1px solid var(--line);border-radius:6px;background:#f1f5f9;color:var(--text);padding:4px 6px;font-size:12px;overflow-wrap:anywhere}.slot-locations,.selected-file{margin:0;color:var(--muted);font-size:13px;overflow-wrap:anywhere}.selected-file{display:flex;align-items:center;flex-wrap:wrap;gap:6px;color:var(--success);font-weight:800}.selected-file span{color:var(--muted);font-weight:700}.slot-status{flex:0 0 auto;border:1px solid var(--line);border-radius:999px;padding:4px 8px;color:var(--muted);background:#fff;font-size:12px;font-weight:900}.slot-status.ready{border-color:#bbf7d0;background:#ecfdf3;color:var(--success)}.slot-status.missing{border-color:#fecdd3;background:#fff1f2;color:var(--danger)}.image-slot-actions{justify-content:flex-start;flex-wrap:wrap;align-items:center}.use-existing-path{width:fit-content;min-height:44px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);padding:8px 10px}.filter-actions{display:flex;align-items:flex-end;flex-wrap:wrap;gap:8px}.segmented{display:flex;flex-wrap:wrap;gap:8px}.segmented button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.puzzle-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:0}.puzzle-meta span{border:1px solid var(--line);border-radius:999px;color:var(--muted);padding:4px 8px;font-size:12px;font-weight:800}.puzzle-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;min-width:0}.puzzle-title-row h2{margin:0;min-width:0}.sketchpad-open-button,.sketchpad-icon-button{width:44px;height:44px;min-height:44px;flex:0 0 auto;padding:0}.blocks{display:grid;gap:8px;min-width:0}.block-text{line-height:1.6;margin-bottom:0;overflow-wrap:break-word}.markdown-text{font-family:inherit}.puzzle-image{max-width:min(100%,620px);max-height:320px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px}.block-image-frame{min-width:0;margin:0;display:grid;gap:7px}.block-image-frame picture,.answer-preview-dialog picture{display:block;min-width:0}.image-description{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.answer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(170px,100%),1fr));gap:12px;margin:0;min-width:0}.answer-option-wrap{position:relative;min-width:0;display:grid}.answer-option{width:100%;height:100%;min-height:92px;justify-content:flex-start;align-items:flex-start;text-align:left;display:grid;gap:8px;min-width:0}.answer-option-heading{min-height:24px;display:flex;align-items:center;gap:6px;padding-right:42px}.answer-option .puzzle-image{width:100%;max-height:230px}.answer-option.selected{border-color:var(--primary);box-shadow:0 0 0 3px #005a9c24}.answer-option.wrong{background:#fff1f2;border-color:#fecdd3;color:var(--danger)}.answer-option.correct{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.answer-option.wrong:disabled,.answer-option.correct:disabled{opacity:1}.answer-zoom-button{position:absolute;z-index:1;top:6px;right:6px;width:44px;height:44px;min-height:44px;background:#ffffffeb;color:var(--primary);box-shadow:0 2px 10px #0f172a1a}.answer-preview-dialog{width:min(900px,100%)}.answer-preview-image{display:block;width:100%;max-height:72vh;object-fit:contain;border-radius:var(--radius-md);background:#fff}.answer-label{font-weight:900}.attempt-history{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px;font-weight:700}.attempt-history strong{min-width:28px;border-radius:999px;padding:4px 8px;text-align:center}.attempt-history strong.ok{background:#ecfdf3;color:var(--success)}.attempt-history strong.bad{background:#fff1f2;color:var(--danger)}details{border:1px solid var(--line);border-radius:8px;padding:10px 12px;margin-top:0;min-width:0;overflow:hidden}summary{cursor:pointer;font-weight:800}details .blocks{margin-top:8px}.feedback{border:1px solid transparent;border-radius:var(--radius-sm);padding:11px 13px;margin:0;font-weight:700;line-height:1.45}.feedback.ok{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.feedback.bad{background:#fff1f2;border-color:#fecdd3;color:var(--danger)}.feedback.info{background:var(--primary-soft);border-color:#bfdbfe;color:var(--primary)}.empty-state,.muted{color:var(--muted)}.loading-state{min-height:116px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-3);padding:18px;display:grid;align-content:center;gap:10px;overflow:hidden}.loading-state.compact{min-height:78px;padding:14px}.skeleton-line{display:block;height:13px;border-radius:999px;background:linear-gradient(90deg,#e2e8f0 20%,#f8fafc,#e2e8f0 70%);background-size:240% 100%;animation:skeleton-shimmer 1.35s ease-in-out infinite}@keyframes skeleton-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.empty-state-panel{min-height:116px;border:1px dashed #cbd5e1;border-radius:var(--radius-md);background:var(--surface-3);color:var(--muted);padding:18px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px}.empty-state-panel strong{display:block;color:var(--text);margin-bottom:3px}.empty-state-panel p{margin:0}.empty-state-icon{width:40px;height:40px;border-radius:50%;display:inline-grid;place-items:center;background:var(--primary-soft);color:var(--primary)}.empty-state-action{justify-self:end}.history-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.history-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.history-list li{border-bottom:1px solid var(--line);padding-bottom:8px}.history-link{display:block;border-radius:8px;padding:4px 6px;margin:-4px -6px}.history-link:hover{background:#f8fafc}.history-link-content{display:flex;align-items:center;gap:8px;min-width:0}.activity-overview{display:grid;gap:18px;min-width:0}.dashboard-section .section-heading,.dashboard-columns .section-heading,.activity-overview .section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.dashboard-section .section-heading h2,.dashboard-columns .section-heading h2,.activity-overview .section-heading h2{margin-bottom:4px}.dashboard-section .section-heading p,.dashboard-columns .section-heading p,.activity-overview .section-heading p{color:var(--muted);margin-bottom:0}.activity-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(170px,100%),1fr));gap:10px}.activity-stat{min-height:82px;border:1px solid var(--line);border-radius:8px;padding:12px;display:grid;align-content:center;gap:6px;background:#f8fafc}.activity-stat span{color:var(--muted);font-size:12px;font-weight:800}.activity-stat strong{font-size:24px;line-height:1}.history-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(170px,100%),1fr));gap:12px;align-items:end}.activity-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.activity-list li{border-bottom:1px solid var(--line);padding-bottom:8px}.activity-link{display:flex;align-items:center;gap:10px;border-radius:8px;padding:8px;margin:-8px;min-width:0}.activity-link:hover{background:#f8fafc}.activity-main{display:grid;gap:3px;min-width:0}.activity-main strong,.activity-main span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.activity-main span{color:var(--muted);font-size:13px}.status-icon{flex:0 0 auto;width:30px;height:30px;border:1px solid var(--line);border-radius:999px;display:inline-grid;place-items:center;background:#fff;color:var(--muted)}.status-icon.correct{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.status-icon.wrong{background:#fff1f2;border-color:#fecdd3;color:var(--danger)}.status-icon.in_progress{background:#fff7ed;border-color:#fed7aa;color:#9a3412}.status-icon.submitted{background:#eaf4ff;border-color:#bfdbfe;color:var(--primary)}.mini-line-chart{display:grid;gap:6px;min-width:0}.mini-line-chart svg{width:100%;max-width:560px;height:140px;display:block}.mini-line-chart line{stroke:var(--line);stroke-width:2}.mini-line-chart polyline{fill:none;stroke:var(--primary);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.mini-line-chart circle{fill:var(--accent);stroke:#fff;stroke-width:2}.mini-line-chart span{color:var(--muted);font-size:13px;font-weight:800}.pager{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:10px}.pager span{color:var(--muted);font-weight:800}.warning-list li{color:#9a3412}.checkbox-row{display:flex;align-items:center;gap:8px}.checkbox-row input{width:auto}.admin-grid{display:grid;grid-template-columns:340px 1fr;gap:16px}.puzzle-list{list-style:none;margin:0;padding:0;display:grid;gap:8px;max-height:650px;overflow:auto}.puzzle-list button{width:100%;display:grid;justify-content:stretch;text-align:left}.puzzle-list span{color:var(--muted);font-size:13px}.availability-badge{width:fit-content;border:1px solid var(--line);border-radius:999px;padding:3px 8px;font-size:12px;font-weight:900}.puzzle-list .availability-badge{color:var(--text)}.availability-badge.available{background:#ecfdf3;border-color:#bbf7d0;color:var(--success)}.availability-badge.unavailable{background:#fff7ed;border-color:#fed7aa;color:#9a3412}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.editor-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:24px;background:#0f172aa8;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.dialog-panel{width:min(520px,100%);max-height:min(90vh,900px);overflow:auto;border:1px solid rgba(255,255,255,.72);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-lg);padding:20px;display:grid;gap:18px}.dialog-panel.wide{width:min(960px,100%)}.dialog-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.dialog-header h2{margin:0;line-height:1.15}.dialog-body{min-width:0}.dialog-body>:last-child{margin-bottom:0}.dialog-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:10px}.preview-modal{width:min(1040px,100%);max-height:min(90vh,900px);overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:20px;display:grid;gap:16px}.preview-modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.preview-modal-header h2{margin:0}.eyebrow{color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase}.modal-close{width:44px;height:44px;min-height:44px;padding:0;font-size:26px;line-height:1}.preview-content{display:grid;gap:16px;min-width:0}.sketchpad-modal{width:min(1120px,100%);max-height:min(92vh,920px);overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:18px;display:grid;gap:14px}.dialog-panel.sketchpad-dialog{width:min(1120px,100%);max-height:min(92vh,920px)}.sketchpad-content,.sketchpad-dialog .dialog-body{display:grid;gap:14px;min-width:0}.sketchpad-modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.sketchpad-modal-header h2{margin:0;min-width:0}.sketchpad-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.sketchpad-tool-group{display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:4px}.sketchpad-icon-button.active{background:var(--primary);border-color:var(--primary);color:#fff}.sketchpad-color-button{width:44px;height:44px;min-height:44px;border-radius:999px;padding:0;border-color:#0f172a38}.sketchpad-color-button.active{box-shadow:0 0 0 3px #005a9c38}.sketchpad-size-control{min-height:48px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:7px 10px;color:var(--text)}.sketchpad-size-control span{white-space:nowrap}.sketchpad-size-control input{width:128px;padding:0}.sketchpad-canvas-scroll{overflow:auto;max-height:66vh;border:1px solid var(--line);border-radius:8px;background:#e2e8f0;padding:12px}.sketchpad-canvas-stack{position:relative;max-width:100%;margin:0 auto;background:#fff;box-shadow:0 1px 3px #0f172a2e}.sketchpad-canvas-stack canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block}.sketchpad-draw-canvas{cursor:crosshair;touch-action:none}.sketchpad-draw-canvas.is-loading{cursor:progress}@media(max-width:860px){.intro-band{grid-template-columns:1fr;padding-top:34px;gap:24px}.hero-visual{justify-self:stretch;width:100%}.hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.app-shell{grid-template-columns:1fr}.sidebar.desktop-sidebar{display:none}.mobile-app-header{min-height:62px;position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 14px;border-bottom:1px solid var(--line);background:#fffffff0;box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.mobile-app-header .brand img{width:112px}.mobile-app-actions{display:flex;align-items:center;gap:6px}.mobile-app-actions .icon-button{display:inline-grid;place-items:center;color:var(--muted)}.mobile-plan-badge{border:1px solid var(--line);border-radius:999px;padding:5px 8px;color:var(--muted);background:var(--surface-3);font-size:11px;font-weight:900;text-transform:uppercase}.mobile-plan-badge.pro{border-color:#bbf7d0;background:#ecfdf3;color:var(--success)}.mobile-bottom-nav{position:fixed;z-index:40;left:0;right:0;bottom:0;min-height:calc(64px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:start;padding:5px 4px env(safe-area-inset-bottom);border-top:1px solid var(--line);background:#fffffff5;box-shadow:0 -10px 28px #0f172a17;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.mobile-bottom-nav a{min-width:0;min-height:54px;border-radius:var(--radius-sm);color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:5px 2px;font-size:11px;font-weight:800;line-height:1.05;text-align:center}.mobile-bottom-nav a.active{color:var(--primary);background:var(--primary-soft)}.mobile-bottom-nav svg{flex:0 0 auto}.sidebar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px 10px;position:sticky;top:0;z-index:2;border-right:0;border-bottom:1px solid var(--line);padding:8px 14px 10px;box-shadow:0 8px 20px #0f172a0f}.sidebar .brand{grid-column:1;grid-row:1}.sidebar .brand img{width:112px}.sidebar .quiet{grid-column:3;grid-row:1;justify-self:end;margin-top:0;min-height:34px;padding:7px 10px}.sidebar nav{grid-column:1 / -1;grid-row:2;display:flex;gap:6px;margin:0 -2px;overflow-x:auto;padding:2px 2px 4px;scrollbar-width:none}.sidebar nav::-webkit-scrollbar{display:none}.sidebar nav a{flex:0 0 auto;min-height:36px;border:1px solid var(--line);border-radius:999px;padding:7px 10px;font-size:14px;white-space:nowrap}.sidebar nav a.active{box-shadow:none}.sidebar-legal{display:none}.metric-grid,.dashboard-mode-grid,.dashboard-columns,.history-grid,.admin-grid{grid-template-columns:1fr}.dashboard-stat-strip{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:minmax(210px,64vw);overflow-x:auto;scroll-snap-type:x mandatory;padding:2px 2px 10px;margin:0 -2px;scrollbar-width:thin}.dashboard-stat{scroll-snap-align:start}.dashboard-hero{grid-template-columns:1fr;align-items:start}.main-panel{padding:16px 18px calc(94px + env(safe-area-inset-bottom))}.test-session-topbar{top:72px}.app-footer{display:flex;justify-content:center;margin-top:22px;padding:16px 0 6px;border-top:1px solid var(--line)}.legal-hero{grid-template-columns:1fr;align-items:start}.language-control{max-width:260px}}@media(max-width:560px){.auth-wrap{align-items:start;padding:18px 12px}.auth-panel{width:100%;max-width:calc(100vw - 24px);padding:22px}.auth-panel>*{min-width:0;max-width:100%}.auth-field-row{grid-template-columns:1fr}.topbar,.main-panel{padding-left:14px;padding-right:14px}.topbar{min-height:60px;gap:10px}.welcome-shell .topbar{align-items:center;flex-wrap:wrap;padding-left:16px;padding-right:16px}.brand.compact img{width:112px}.welcome-shell .top-actions{flex-wrap:nowrap;gap:8px}.welcome-shell .top-actions a{font-size:14px;white-space:nowrap}.welcome-shell .top-actions .button{min-height:44px;padding:7px 10px}.welcome-shell .top-language-select{min-width:58px;min-height:44px;padding:7px 22px 7px 9px}.intro-band,.welcome-pricing,.welcome-samples{padding-left:16px;padding-right:16px}.welcome-pricing{margin:10px 16px}.intro-band{padding-top:28px}.intro-band h1{font-size:clamp(38px,12vw,52px)}.intro-band p{font-size:16px}.hero-actions{align-items:stretch}.hero-actions .button{flex:1 1 100%}.hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-stat{min-height:82px;padding:10px}.hero-visual{display:none}.logic-grid{width:128px;gap:7px}.logic-trail{top:8px;right:0;bottom:24px;left:0}.welcome-samples{padding-top:10px}.pricing-grid{grid-template-columns:1fr}.pricing-price-row strong{font-size:clamp(38px,13vw,50px)}.welcome-samples .page-header{padding:14px;grid-template-columns:1fr}.welcome-samples .page-header>.button{width:100%}.sidebar{padding:7px 10px 8px}.sidebar .brand img{width:104px}.sidebar .quiet{font-size:14px}.sidebar nav a{min-height:34px;padding:6px 9px;font-size:13px}.page-stack{gap:14px}.page-header{align-items:center;gap:10px}.page-header h1{font-size:34px;line-height:1.05;margin-bottom:4px}.page-header p{font-size:15px}.page-header>.button,.page-header>.status-pill{min-height:44px;padding:7px 10px}.metric-tile{min-height:100px;padding:16px}.dashboard-hero{padding:18px}.dashboard-hero-actions{align-items:stretch}.dashboard-hero-actions .button{flex:1 1 100%}.dashboard-focus{padding-left:12px}.work-surface{padding:14px}.test-session-topbar,.comparison-header,.section-heading{display:grid}.test-session-topbar button{width:100%}.comparison-chart{gap:5px}.top-actions{width:auto;justify-content:flex-end;margin-left:auto}.legal-main{padding:24px 14px 36px}.legal-document{padding:18px}.legal-tabs a{flex:1 1 150px;text-align:center}.toolbar{align-items:stretch}.toolbar>button,.toolbar>.button{flex:1 1 100%}.toolbar>span{width:100%;text-align:center}.answer-grid:has(.puzzle-image){grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.answer-grid:has(.puzzle-image) .answer-option{min-height:0;padding:8px}.answer-grid:has(.puzzle-image) .answer-option-heading{padding-right:48px}.answer-grid:has(.puzzle-image) .answer-option .puzzle-image{max-height:168px;padding:4px}.answer-grid:has(.puzzle-image) .answer-zoom-button{top:4px;right:4px;width:44px;height:44px;min-height:44px}.app-shell .work-surface:has(>.practice-actions){padding-bottom:132px}.app-shell .practice-actions{position:fixed;z-index:35;left:10px;right:10px;bottom:calc(68px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fffffff5;box-shadow:0 -8px 30px #0f172a29;padding:9px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.app-shell .practice-actions>button{width:100%;min-width:0;font-size:13px}.app-shell .practice-actions>button.primary{grid-column:1 / -1}.empty-state-panel{grid-template-columns:auto minmax(0,1fr)}.empty-state-action{grid-column:1 / -1;justify-self:stretch}.empty-state-action>*{width:100%}.dialog-actions>button,.dialog-actions>.button{flex:1 1 140px}.billing-header,.billing-overview,.locked-access-copy{align-items:flex-start}.billing-header{display:grid}.billing-state{justify-self:start}.billing-actions{align-items:stretch}.billing-actions button{flex:1 1 100%}.profile-form-grid{grid-template-columns:1fr}.profile-form-grid button{width:100%}.pro-benefit-list li{grid-template-columns:auto minmax(0,1fr)}.pro-benefit-list em{grid-column:2;justify-self:start;white-space:normal}.locked-access-list{display:grid}.filter-actions{width:100%}.filter-actions button{flex:1 1 140px}.import-header,.image-import-header,.image-slot-title-row{display:grid}.file-button,.image-slot-actions button,.use-existing-path{width:100%}.image-slot{grid-template-columns:1fr}.image-slot-preview{width:100%;height:160px}.modal-backdrop{padding:10px}.preview-modal{max-height:calc(100vh - 20px);padding:14px}.preview-modal-header{align-items:center}}