:root{--bg: #F4F5F8;--bg-deep: #15171E;--card: #FFFFFF;--ink: #181B22;--color-maths: #3B6FE0;--color-francais: #E0556B;--color-histgeo: #E0913B;--color-sciences: #2FA87E;--font-display: "Bricolage Grotesque", sans-serif;--font-body: "Inter", sans-serif;--font-mono: "Space Mono", monospace;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 40px;--space-2xl: 64px;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 999px;--shadow-card: 0 2px 12px rgba(24, 27, 34, .08);--shadow-elevated: 0 8px 32px rgba(24, 27, 34, .16);--transition: .2s ease;--transition-slow: .4s ease;--accent: #3B6FE0}@media (prefers-reduced-motion: reduce){:root{--transition: 0ms;--transition-slow: 0ms}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;height:100%}body{min-height:100%;font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.5;overscroll-behavior:none}#app{min-height:100dvh;display:flex;flex-direction:column}h1,h2,h3{font-family:var(--font-display);line-height:1.2}h1{font-size:clamp(1.75rem,5vw,2.5rem);font-weight:700}h2{font-size:1.25rem;font-weight:600}h3{font-size:1rem;font-weight:600}.mono{font-family:var(--font-mono)}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.muted{opacity:.6}button{font-family:var(--font-body);cursor:pointer;border:none;background:none;-webkit-tap-highlight-color:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);min-height:48px;min-width:48px;padding:12px var(--space-lg);border-radius:var(--radius-full);font-size:1rem;font-weight:600;transition:transform var(--transition),box-shadow var(--transition),background var(--transition);cursor:pointer;border:none;font-family:var(--font-body);-webkit-tap-highlight-color:transparent}.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 16px color-mix(in srgb,var(--accent) 40%,transparent)}.btn-primary:hover{filter:brightness(1.1)}.btn-ghost{background:#181b220f;color:var(--ink)}.btn-ghost:hover{background:#181b221a}.btn-danger{background:#e0556b;color:#fff}.card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:var(--space-lg)}.container{width:100%;max-width:480px;margin:0 auto;padding:0 var(--space-md)}.stack{display:flex;flex-direction:column}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.view{flex:1;display:flex;flex-direction:column;animation:view-in var(--transition-slow) both}@keyframes view-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.home-header{background:var(--bg-deep);color:#fff;padding:var(--space-xl) var(--space-md) var(--space-lg);padding-top:calc(var(--space-xl) + env(safe-area-inset-top))}.home-header .logo{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg)}.home-header .logo-icon{width:36px;height:36px}.home-header .logo-name{font-family:var(--font-display);font-size:1.25rem;font-weight:700;color:#fff}.home-header .baseline{font-size:.75rem;opacity:.5;letter-spacing:.08em;text-transform:uppercase;margin-top:2px}.countdown-block{margin-bottom:var(--space-lg)}.countdown-label{font-size:.75rem;opacity:.6;text-transform:uppercase;letter-spacing:.08em;margin-bottom:var(--space-xs)}.countdown-value{font-family:var(--font-mono);font-size:3.5rem;font-weight:700;line-height:1;color:#fff}.countdown-sub{font-size:.875rem;opacity:.5;margin-top:var(--space-xs)}.home-actions{display:flex;flex-direction:column;gap:var(--space-sm);margin-top:var(--space-md)}.home-body{padding:var(--space-lg) var(--space-md);display:flex;flex-direction:column;gap:var(--space-lg);padding-bottom:calc(var(--space-xl) + env(safe-area-inset-bottom))}.stats-row{display:flex;gap:var(--space-md)}.stat-chip{flex:1;background:var(--card);border-radius:var(--radius-md);padding:var(--space-md);box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:4px}.stat-chip .stat-value{font-family:var(--font-mono);font-size:1.5rem;font-weight:700}.stat-chip .stat-label{font-size:.75rem;opacity:.6}.subjects-grid{display:flex;flex-direction:column;gap:var(--space-sm)}.subject-tile{background:var(--card);border-radius:var(--radius-md);padding:var(--space-md);box-shadow:var(--shadow-card);display:flex;align-items:center;gap:var(--space-md);text-align:left;width:100%;cursor:pointer;transition:transform var(--transition)}.subject-tile:hover{transform:translateY(-1px)}.subject-tile:active{transform:scale(.98)}.subject-tile:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.subject-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0}.subject-info{flex:1}.subject-name{font-weight:600;font-size:.9375rem}.subject-meta{font-size:.75rem;opacity:.6;margin-top:2px}.subject-progress-bar{height:4px;background:#181b2214;border-radius:2px;margin-top:var(--space-xs);overflow:hidden}.subject-progress-fill{height:100%;border-radius:2px;transition:width var(--transition-slow)}.subject-due-badge{font-family:var(--font-mono);font-size:.875rem;font-weight:700;min-width:32px;text-align:right;flex-shrink:0}.review-view{background:var(--bg-deep);min-height:100dvh;color:#fff;display:flex;flex-direction:column}.review-header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);padding-top:calc(var(--space-md) + env(safe-area-inset-top))}.review-back-btn{width:44px;height:44px;border-radius:50%;background:#ffffff1a;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.25rem;cursor:pointer;border:none;transition:background var(--transition)}.review-back-btn:hover{background:#ffffff26}.review-back-btn:focus-visible{outline:3px solid var(--accent)}.progress-bar-wrap{flex:1;height:6px;background:#ffffff1f;border-radius:3px;overflow:hidden}.progress-bar-fill{height:100%;border-radius:3px;background:var(--accent);transition:width var(--transition-slow)}.progress-label{font-family:var(--font-mono);font-size:.75rem;opacity:.6;white-space:nowrap}.subject-tag{font-size:.6875rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;padding:4px 10px;border-radius:var(--radius-full);background:var(--accent);color:#fff;align-self:flex-start;margin:0 var(--space-md)}.review-card-area{flex:1;display:flex;flex-direction:column;justify-content:center;padding:var(--space-lg) var(--space-md);gap:var(--space-lg)}.review-question{font-family:var(--font-display);font-size:clamp(1.25rem,4vw,1.75rem);font-weight:600;line-height:1.3;color:#fff}.reveal-btn-wrap{display:flex;justify-content:center}.reveal-btn{background:#ffffff1a;color:#fff;border:1.5px solid rgba(255,255,255,.2);border-radius:var(--radius-full);padding:14px var(--space-xl);font-size:1rem;font-weight:600;font-family:var(--font-body);cursor:pointer;transition:background var(--transition),transform var(--transition);min-height:48px}.reveal-btn:hover{background:#ffffff29}.reveal-btn:active{transform:scale(.97)}.reveal-btn:focus-visible{outline:3px solid var(--accent)}.review-answer{animation:answer-in var(--transition-slow) both}@keyframes answer-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.answer-text{font-size:1.0625rem;line-height:1.6;color:#fffffff2;font-weight:500}.explanation-text{font-size:.875rem;color:#ffffff8c;line-height:1.6;border-left:3px solid var(--accent);padding-left:var(--space-md)}.divider{height:1px;background:#ffffff1a}.rating-footer{padding:var(--space-lg) var(--space-md);padding-bottom:calc(var(--space-lg) + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:var(--space-sm)}.rating-hint{text-align:center;font-size:.75rem;opacity:.4}.rating-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-sm)}.rating-btn{min-height:56px;border-radius:var(--radius-md);font-size:.875rem;font-weight:600;font-family:var(--font-body);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;border:none;transition:transform var(--transition),filter var(--transition)}.rating-btn:active{transform:scale(.96)}.rating-btn:focus-visible{outline:3px solid #fff}.rating-btn .kbd{font-family:var(--font-mono);font-size:.6875rem;opacity:.6}.rating-btn-again{background:#3d1e22;color:#ff6b7a}.rating-btn-good{background:#1a2e54;color:#6b9eff}.rating-btn-easy{background:#0e2e25;color:#4ecfab}.end-view{background:var(--bg-deep);min-height:100dvh;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-xl) var(--space-md);gap:var(--space-lg)}.end-icon{font-size:4rem;animation:pop .4s var(--transition-slow) both}@keyframes pop{0%{transform:scale(.5);opacity:0}80%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.end-title{font-family:var(--font-display);font-size:2rem;font-weight:700}.end-stats{display:flex;gap:var(--space-lg);justify-content:center}.end-stat{display:flex;flex-direction:column;align-items:center;gap:4px}.end-stat .value{font-family:var(--font-mono);font-size:2rem;font-weight:700}.end-stat .label{font-size:.75rem;opacity:.6}.settings-view{flex:1;display:flex;flex-direction:column}.settings-header{background:var(--bg-deep);color:#fff;padding:var(--space-lg) var(--space-md);padding-top:calc(var(--space-lg) + env(safe-area-inset-top));display:flex;align-items:center;gap:var(--space-md)}.settings-back{width:44px;height:44px;border-radius:50%;background:#ffffff1a;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;font-size:1.25rem;flex-shrink:0;transition:background var(--transition)}.settings-back:hover{background:#ffffff29}.settings-back:focus-visible{outline:3px solid var(--accent)}.settings-title{font-family:var(--font-display);font-size:1.5rem;font-weight:700}.settings-body{padding:var(--space-lg) var(--space-md);display:flex;flex-direction:column;gap:var(--space-lg);padding-bottom:calc(var(--space-xl) + env(safe-area-inset-bottom))}.settings-section{display:flex;flex-direction:column;gap:var(--space-sm)}.settings-section-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;opacity:.5;padding:0 var(--space-xs)}.settings-row{background:var(--card);border-radius:var(--radius-md);padding:var(--space-md);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);box-shadow:var(--shadow-card)}.settings-row label{font-weight:500;flex:1}.settings-row input[type=date],.settings-row input[type=number]{font-family:var(--font-mono);font-size:.875rem;border:1.5px solid rgba(24,27,34,.15);border-radius:var(--radius-sm);padding:6px var(--space-sm);background:var(--bg);color:var(--ink);min-height:44px;min-width:120px}.settings-row input:focus{outline:2px solid var(--accent);outline-offset:2px}.toggle-row{background:var(--card);border-radius:var(--radius-md);padding:var(--space-md);display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-card)}.toggle-label{display:flex;align-items:center;gap:var(--space-sm);font-weight:500}.toggle-dot{width:10px;height:10px;border-radius:50%}.toggle{position:relative;width:44px;height:26px;flex-shrink:0}.toggle input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;top:0;right:0;bottom:0;left:0;background:#181b2226;border-radius:var(--radius-full);transition:background var(--transition);cursor:pointer}.toggle-slider:before{content:"";position:absolute;width:20px;height:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform var(--transition);box-shadow:0 1px 4px #0003}.toggle input:checked+.toggle-slider{background:var(--accent)}.toggle input:checked+.toggle-slider:before{transform:translate(18px)}.toggle input:focus-visible+.toggle-slider{outline:3px solid var(--accent);outline-offset:2px}.nav-bar{background:var(--card);border-top:1px solid rgba(24,27,34,.08);display:flex;padding-bottom:env(safe-area-inset-bottom);position:sticky;bottom:0;z-index:10}.nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:var(--space-sm) 0;min-height:48px;color:#181b2266;font-size:.6875rem;font-weight:500;background:none;border:none;cursor:pointer;transition:color var(--transition)}.nav-btn:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}.nav-btn.active{color:var(--accent)}.nav-btn svg{width:22px;height:22px}.training-banner{background:#e0913b1f;border:1.5px solid rgba(224,145,59,.3);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);font-size:.8125rem;color:#e0913b;font-weight:500;text-align:center;margin:0 var(--space-md)}