@import "https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap";:root{--bg-app:#080c12;--bg-primary:#0d121c;--bg-secondary:#131a29;--bg-card:#131a29c7;--bg-card-hover:#1c263be6;--bg-input:#0d121cd9;--text-primary:#f0f6fc;--text-secondary:#94a3b8;--text-muted:#64748b;--accent-cyan:#38bdf8;--accent-blue:#3b82f6;--accent-indigo:#6366f1;--accent-purple:#a855f7;--accent-gradient:linear-gradient(135deg, #38bdf8 0%, #3b82f6 50%, #8b5cf6 100%);--accent-gradient-hover:linear-gradient(135deg, #0ea5e9 0%, #2563eb 50%, #7c3aed 100%);--accent-glow:0 0 24px #38bdf847;--success-color:#10b981;--success-glow:#10b98140;--warning-color:#f59e0b;--warning-glow:#f59e0b40;--danger-color:#ef4444;--danger-glow:#ef444440;--info-color:#06b6d4;--border-subtle:#ffffff12;--border-medium:#ffffff1f;--border-bright:#38bdf859;--glass-shadow:0 12px 36px 0 #00000073;--card-shadow:0 8px 24px -4px #00000080, 0 0 0 1px #ffffff0f;--radius-xs:6px;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:9999px;--font-heading:"Outfit", sans-serif;--font-ui:"Plus Jakarta Sans", sans-serif;--font-body:"Inter", sans-serif;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.3s cubic-bezier(.16, 1, .3, 1);--transition-bounce:.5s cubic-bezier(.34, 1.56, .64, 1)}@media (prefers-color-scheme:light){:root[data-theme=light]{--bg-app:#f8fafc;--bg-primary:#fff;--bg-secondary:#f1f5f9;--bg-card:#ffffffd9;--bg-card-hover:#f8fafcf2;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border-subtle:#0f172a14;--border-medium:#0f172a26;--glass-shadow:0 12px 36px 0 #00000014;--card-shadow:0 8px 24px -4px #0000000f, 0 0 0 1px #0f172a0d}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-app);width:100%;min-height:100dvh;color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;position:relative;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(circle,#3b82f624 0%,#8b5cf614 50%,#0000 80%);width:600px;height:380px;position:fixed;top:-120px;left:50%;transform:translate(-50%)}.glass-panel{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--card-shadow);transition:border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast)}.glass-panel-interactive{cursor:pointer}.glass-panel-interactive:hover{background:var(--bg-card-hover);border-color:var(--border-medium);box-shadow:0 12px 32px -4px #0009, 0 0 0 1px var(--border-bright);transform:translateY(-2px)}.glass-panel-interactive:active{transform:scale(.98)}button{font-family:var(--font-ui);cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform var(--transition-fast), filter var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);border:none;outline:none}button:active{transform:scale(.96)}.btn-primary{background:var(--accent-gradient);color:#fff;border-radius:var(--radius-md);border:1px solid #ffffff26;justify-content:center;align-items:center;gap:8px;padding:14px 20px;font-size:.95rem;font-weight:700;display:inline-flex;box-shadow:0 6px 20px -2px #3b82f673}.btn-primary:hover{background:var(--accent-gradient-hover);transform:translateY(-1px);box-shadow:0 8px 28px -2px #3b82f699}.btn-secondary{color:var(--text-primary);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);background:#ffffff0f;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-size:.875rem;font-weight:600;display:inline-flex}.btn-secondary:hover{border-color:var(--border-medium);background:#ffffff1f}.badge{border-radius:var(--radius-full);font-family:var(--font-ui);letter-spacing:.02em;text-transform:uppercase;align-items:center;gap:5px;padding:4px 10px;font-size:.725rem;font-weight:700;display:inline-flex}.badge-primary{color:#38bdf8;background:#38bdf81f;border:1px solid #38bdf847}.badge-success{color:#10b981;background:#10b9811f;border:1px solid #10b98147}.badge-warning{color:#fbbf24;background:#f59e0b1f;border:1px solid #f59e0b47}.badge-danger{color:#f87171;background:#ef44441f;border:1px solid #ef444447}.badge-purple{color:#c084fc;background:#a855f71f;border:1px solid #a855f747}.flip-card-container{perspective:1400px;cursor:pointer;-webkit-user-select:none;user-select:none;width:100%;min-height:380px}.flip-card-inner{width:100%;height:100%;min-height:380px;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.34,1.56,.64,1);position:relative}.flip-card-inner.flipped{transform:rotateY(180deg)}.flip-card-front,.flip-card-back{backface-visibility:hidden;border-radius:var(--radius-lg);width:100%;height:100%;min-height:380px;box-shadow:0 16px 40px -8px #0009, 0 0 0 1px var(--border-medium);flex-direction:column;justify-content:space-between;padding:24px;display:flex;position:absolute;top:0;left:0}.flip-card-front{background:linear-gradient(165deg,#182132f2 0%,#0d121cfa 100%)}.flip-card-back{background:linear-gradient(165deg,#13261ef2 0%,#0a1611fa 100%);border-color:#10b9814d;transform:rotateY(180deg)}.rating-grid{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:18px;display:grid}.rating-btn{border-radius:var(--radius-md);font-family:var(--font-ui);transition:all var(--transition-fast);border:1px solid #0000;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:12px 4px;font-size:.85rem;font-weight:700;display:flex}.rating-btn .rating-label{letter-spacing:-.01em;font-size:.85rem}.rating-btn .interval-hint{opacity:.85;border-radius:var(--radius-full);background:#0003;padding:1px 6px;font-size:.7rem;font-weight:600}.rating-again{color:#f87171;background:#ef44441f;border-color:#ef444440}.rating-again:hover{background:#ef444438;transform:translateY(-2px);box-shadow:0 4px 14px #ef444440}.rating-hard{color:#fbbf24;background:#f59e0b1f;border-color:#f59e0b40}.rating-hard:hover{background:#f59e0b38;transform:translateY(-2px);box-shadow:0 4px 14px #f59e0b40}.rating-good{color:#60a5fa;background:#3b82f61f;border-color:#3b82f640}.rating-good:hover{background:#3b82f638;transform:translateY(-2px);box-shadow:0 4px 14px #3b82f640}.rating-easy{color:#34d399;background:#10b9811f;border-color:#10b98140}.rating-easy:hover{background:#10b98138;transform:translateY(-2px);box-shadow:0 4px 14px #10b98140}.audio-btn{color:#38bdf8;width:36px;height:36px;transition:all var(--transition-fast);background:#38bdf81f;border:1px solid #38bdf84d;border-radius:50%;justify-content:center;align-items:center;font-size:1rem;display:inline-flex}.audio-btn:hover{background:#38bdf840;transform:scale(1.08)}.audio-btn:active{transform:scale(.92)}.search-box{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);align-items:center;gap:10px;padding:12px 16px;display:flex;box-shadow:0 4px 16px #0003}.search-box:focus-within{border-color:var(--accent-cyan);box-shadow:0 0 0 2px #38bdf833}.search-box input{color:var(--text-primary);font-size:.95rem;font-family:var(--font-body);background:0 0;border:none;outline:none;flex:1}.search-box input::placeholder{color:var(--text-muted)}@keyframes pulseGlow{0%{transform:scale(.95);box-shadow:0 0 #10b98199}70%{transform:scale(1);box-shadow:0 0 0 8px #10b98100}to{transform:scale(.95);box-shadow:0 0 #10b98100}}.live-indicator{background:#10b981;border-radius:50%;width:8px;height:8px;animation:2s infinite pulseGlow;display:inline-block}.safe-area-bottom{padding-bottom:max(16px, env(safe-area-inset-bottom))}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff38}