@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/inter-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/inter-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Outfit Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/outfit-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Outfit Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/fonts/outfit-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}:root{--font-sans: "Inter Variable", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display: "Outfit Variable", var(--font-sans);--primary: 45 100% 51%;--primary-hover: 45 100% 45%;--primary-light: 45 100% 94%;--primary-dim: 45 90% 88%;--dark: 222 37% 19%;--dark-2: 222 35% 26%;--bg-primary: 228 45% 98%;--bg-card: 0 0% 100%;--bg-sunken: 228 35% 95%;--text-primary: 222 37% 14%;--text-secondary: 222 15% 42%;--text-muted: 222 10% 62%;--text-on-dark: 0 0% 100%;--text-on-dark-muted: 45 60% 88%;--success: 135 59% 49%;--success-light: 135 59% 94%;--success-hover: 135 59% 40%;--error: 4 100% 59%;--error-light: 4 100% 95%;--error-hover: 4 90% 50%;--warning: 38 95% 54%;--warning-light: 38 95% 94%;--info: 210 90% 55%;--info-light: 210 90% 95%;--border: 222 20% 90%;--border-strong: 222 20% 82%;--shadow-xs: 0 1px 2px rgba(31, 42, 68, .04);--shadow-sm: 0 2px 8px rgba(31, 42, 68, .06);--shadow-md: 0 6px 16px -4px rgba(31, 42, 68, .1), 0 2px 6px -2px rgba(31, 42, 68, .06);--shadow-lg: 0 16px 32px -8px rgba(31, 42, 68, .14), 0 4px 10px -4px rgba(31, 42, 68, .08);--shadow-xl: 0 24px 48px -12px rgba(31, 42, 68, .18);--shadow-primary: 0 8px 20px -4px rgba(255, 193, 7, .45);--shadow-primary-lg: 0 12px 28px -6px rgba(255, 193, 7, .5);--shadow-success: 0 8px 20px -4px rgba(52, 199, 89, .4);--shadow-error: 0 8px 20px -4px rgba(255, 59, 48, .35);--radius-xs: 10px;--radius-sm: 14px;--radius-md: 18px;--radius-lg: 22px;--radius-xl: 26px;--radius-2xl: 28px;--radius-pill: 999px;--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--ease-out: cubic-bezier(.16, 1, .3, 1);--transition-fast: .15s var(--ease-out);--transition-normal: .25s var(--ease-out);--transition-slow: .4s var(--ease-out);--transition-spring: .35s var(--ease-spring)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background-color:hsl(var(--bg-primary));color:hsl(var(--text-primary));line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;color:hsl(var(--text-primary))}button,input,select,textarea{font-family:inherit}button{font-family:var(--font-display)}::selection{background:hsl(var(--primary) / .35)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:hsl(var(--border-strong));border-radius:10px}.no-scrollbar{scrollbar-width:none;-ms-overflow-style:none}.no-scrollbar::-webkit-scrollbar{display:none}.app-container{max-width:500px;margin:0 auto;min-height:100vh;min-height:100dvh;background-color:hsl(var(--bg-primary));position:relative;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);padding-bottom:var(--ad-banner-h, 0px)}.app-header{padding:14px 20px;background-color:hsl(var(--bg-primary) / .85);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid hsl(var(--border) / .7)}.app-title{font-size:1.2rem;font-weight:800;color:hsl(var(--text-primary));display:flex;align-items:center;gap:8px}.app-header-btn{background:hsl(var(--bg-card));border:1px solid hsl(var(--border));cursor:pointer;display:flex;align-items:center;justify-content:center;color:hsl(var(--text-primary));width:36px;height:36px;border-radius:var(--radius-pill);box-shadow:var(--shadow-xs);transition:all var(--transition-fast)}.app-header-btn:hover{border-color:hsl(var(--primary));transform:translateY(-1px);box-shadow:var(--shadow-sm)}.app-header-btn:active{transform:scale(.92)}.app-content{flex:1;padding:18px 18px calc(100px + env(safe-area-inset-bottom) + var(--ad-banner-h, 0px));display:flex;flex-direction:column;gap:18px}.card{background-color:hsl(var(--bg-card));border:1px solid hsl(var(--border));border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);transition:transform var(--transition-normal),box-shadow var(--transition-normal),border-color var(--transition-normal);position:relative}.card-title{font-size:1.05rem;margin-bottom:8px;display:flex;align-items:center;gap:10px}.card-description{font-size:.875rem;color:hsl(var(--text-secondary))}.card-dark{background:linear-gradient(150deg,hsl(var(--dark)),hsl(var(--dark-2)));color:hsl(var(--text-on-dark));border:1px solid hsl(var(--dark-2));box-shadow:var(--shadow-lg)}.card-glass{background-color:hsl(var(--bg-card));border:1px solid hsl(var(--border));border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:all var(--transition-normal)}.card-glass:hover{border-color:hsl(var(--primary) / .5);box-shadow:var(--shadow-md);transform:translateY(-2px)}.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700}.badge-primary{background-color:hsl(var(--primary-light));color:#9b6508}.badge-success{background-color:hsl(var(--success-light));color:hsl(var(--success-hover))}.badge-error{background-color:hsl(var(--error-light));color:hsl(var(--error-hover))}.badge-warning{background-color:hsl(var(--warning-light));color:#b8610a}.badge-dark{background-color:hsl(var(--dark));color:hsl(var(--primary))}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 22px;font-family:var(--font-display);font-weight:800;font-size:.95rem;border-radius:var(--radius-md);border:none;cursor:pointer;transition:transform .12s var(--ease-spring),box-shadow .12s var(--ease-out),background-color var(--transition-fast);width:100%;position:relative}.btn:active:not(:disabled){transform:translateY(2px) scale(.99)}.btn-primary{background-color:hsl(var(--primary));color:hsl(var(--dark));box-shadow:0 4px hsl(var(--primary-hover)),var(--shadow-primary)}.btn-primary:hover:not(:disabled){filter:brightness(1.04)}.btn-primary:active:not(:disabled){box-shadow:0 1px hsl(var(--primary-hover))}.btn-secondary{background-color:hsl(var(--bg-card));color:hsl(var(--text-primary));border:2px solid hsl(var(--border-strong));box-shadow:0 3px hsl(var(--border-strong))}.btn-secondary:hover:not(:disabled){border-color:hsl(var(--primary));color:#9b6508}.btn-secondary:active:not(:disabled){box-shadow:0 1px hsl(var(--border-strong))}.btn-success{background-color:hsl(var(--success));color:#fff;box-shadow:0 4px hsl(var(--success-hover)),var(--shadow-success)}.btn-success:active:not(:disabled){box-shadow:0 1px hsl(var(--success-hover))}.btn-error{background-color:hsl(var(--error));color:#fff;box-shadow:0 4px hsl(var(--error-hover)),var(--shadow-error)}.btn-error:active:not(:disabled){box-shadow:0 1px hsl(var(--error-hover))}.btn-ghost{background:transparent;color:hsl(var(--text-secondary));border:none;box-shadow:none;width:auto;padding:8px 12px;cursor:pointer;font-size:.85rem}.btn-ghost:hover{color:hsl(var(--text-primary));background:hsl(var(--bg-sunken))}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important}.btn-exam-cta{background:linear-gradient(135deg,hsl(var(--primary)),#ffb81f);color:hsl(var(--dark));font-family:var(--font-display);font-weight:800;font-size:1.02rem;padding:17px 24px;border-radius:var(--radius-md);border:none;cursor:pointer;width:100%;display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px hsl(var(--primary-hover)),var(--shadow-primary-lg);transition:transform .12s var(--ease-spring),box-shadow .12s var(--ease-out),filter var(--transition-fast);position:relative;overflow:hidden}.btn-exam-cta:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);transition:left .6s ease}.btn-exam-cta:hover:before{left:100%}.btn-exam-cta:hover{filter:brightness(1.03)}.btn-exam-cta:active{transform:translateY(2px);box-shadow:0 1px hsl(var(--primary-hover))}.option-btn{display:flex;align-items:center;width:100%;padding:16px 18px;background-color:hsl(var(--bg-card));border:2px solid hsl(var(--border));border-radius:var(--radius-md);cursor:pointer;transition:transform .18s var(--ease-spring),border-color var(--transition-fast),background-color var(--transition-fast),box-shadow var(--transition-fast);text-align:left;font-size:.96rem;font-weight:600;gap:14px;color:hsl(var(--text-primary));box-shadow:0 2px hsl(var(--border))}.option-btn:hover:not(:disabled){border-color:hsl(var(--primary));background-color:hsl(var(--primary-light));transform:translateY(-1px)}.option-btn:active:not(:disabled){transform:scale(.98)}.option-btn.selected{border-color:hsl(var(--dark));background-color:hsl(var(--dark) / .05);font-weight:700;box-shadow:0 2px hsl(var(--dark) / .3);animation:optionPop .28s var(--ease-spring)}.option-btn.correct{border-color:hsl(var(--success));background-color:hsl(var(--success-light));color:hsl(var(--success-hover));font-weight:700;box-shadow:0 2px hsl(var(--success));animation:optionPop .32s var(--ease-spring)}.option-btn.incorrect{border-color:hsl(var(--error));background-color:hsl(var(--error-light));color:hsl(var(--error-hover));font-weight:700;box-shadow:0 2px hsl(var(--error));animation:optionShake .4s var(--ease-out)}.option-letter{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:var(--radius-pill);background-color:hsl(var(--primary));color:hsl(var(--dark));font-size:.82rem;font-weight:800;flex-shrink:0;transition:all var(--transition-fast)}.option-btn.correct .option-letter{background-color:hsl(var(--success));color:#fff}.option-btn.incorrect .option-letter{background-color:hsl(var(--error));color:#fff}.option-btn.selected .option-letter{background-color:hsl(var(--dark));color:hsl(var(--primary))}@keyframes optionPop{0%{transform:scale(.96)}55%{transform:scale(1.02)}to{transform:scale(1)}}@keyframes optionShake{10%,90%{transform:translate(-1px)}20%,80%{transform:translate(2px)}30%,50%,70%{transform:translate(-4px)}40%,60%{transform:translate(4px)}}.question-container{display:flex;flex-direction:column;gap:20px}.question-text{font-size:1.12rem;font-weight:700;line-height:1.5;color:hsl(var(--text-primary))}.question-image-wrapper{width:100%;border-radius:var(--radius-md);border:2px solid hsl(var(--border));overflow:hidden;background-color:hsl(var(--bg-sunken));display:flex;justify-content:center;align-items:center;aspect-ratio:16/9}.question-image{max-width:100%;max-height:100%;object-fit:contain}.explanation-card{background:hsl(var(--info-light));border:1.5px solid hsl(var(--info) / .25);border-left:4px solid hsl(var(--info));border-radius:var(--radius-md);padding:14px 18px;color:hsl(var(--text-primary));font-size:.9rem;display:flex;gap:10px;animation:slideUpFade .3s var(--ease-out)}.progress-bar-container{width:100%;height:10px;background-color:hsl(var(--bg-sunken));border-radius:var(--radius-pill);overflow:hidden;border:1px solid hsl(var(--border))}.progress-bar{height:100%;background:linear-gradient(90deg,hsl(var(--primary)),#ffbb29);border-radius:var(--radius-pill);transition:width .45s var(--ease-spring);box-shadow:0 0 10px hsl(var(--primary) / .5)}.timer-box{display:flex;align-items:center;gap:6px;font-family:var(--font-display);font-weight:800;font-size:1rem;background:hsl(var(--bg-card));border:1px solid hsl(var(--border));padding:6px 14px;border-radius:var(--radius-pill);box-shadow:var(--shadow-xs)}.timer-critical{color:hsl(var(--error));border-color:hsl(var(--error) / .3);background:hsl(var(--error-light));animation:pulse 1s infinite alternate}@keyframes pulse{0%{opacity:.85;transform:scale(1)}to{opacity:1;transform:scale(1.06)}}.fade-in{animation:fadeIn var(--transition-normal)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUpFade{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{opacity:0;transform:scale(.7)}70%{transform:scale(1.06)}to{opacity:1;transform:scale(1)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.3) translateY(20px)}50%{opacity:1;transform:scale(1.08) translateY(-6px)}75%{transform:scale(.96) translateY(2px)}to{transform:scale(1) translateY(0)}}@keyframes flicker{0%,to{transform:rotate(-3deg) scale(1)}50%{transform:rotate(3deg) scale(1.08)}}@keyframes floatY{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.skeleton{background:linear-gradient(90deg,hsl(var(--bg-sunken)) 25%,hsl(var(--border)),hsl(var(--bg-sunken)) 75%);background-size:800px 100%;animation:shimmer 1.6s linear infinite;border-radius:var(--radius-sm)}.bottom-nav{position:sticky;bottom:0;background:hsl(var(--bg-card) / .9);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-top:1px solid hsl(var(--border));display:flex;justify-content:space-around;padding:10px 6px calc(10px + env(safe-area-inset-bottom));z-index:50;box-shadow:0 -8px 24px #1f2a440f}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:3px;color:hsl(var(--text-muted));background:none;border:none;cursor:pointer;font-size:.66rem;font-weight:700;transition:color var(--transition-fast),transform .2s var(--ease-spring);padding:6px 10px;border-radius:var(--radius-md);position:relative}.bottom-nav-item.active{color:#9b6508;transform:translateY(-2px)}.bottom-nav-item:active{transform:scale(.9)}.nav-active-dot{width:5px;height:5px;border-radius:50%;background:hsl(var(--primary));margin-top:1px}.signs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:12px}.sign-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px;background-color:hsl(var(--bg-card));border:1px solid hsl(var(--border));border-radius:var(--radius-md);text-align:center;transition:all var(--transition-fast)}.sign-card:hover{border-color:hsl(var(--primary));box-shadow:var(--shadow-sm);transform:translateY(-2px)}.sign-image{width:60px;height:60px;object-fit:contain}.sign-title{font-size:.75rem;font-weight:700;color:hsl(var(--text-primary))}.result-header{text-align:center;padding:36px 20px 30px;border-radius:var(--radius-xl);margin-bottom:4px;position:relative;overflow:hidden}.result-header.passed{background:linear-gradient(150deg,hsl(var(--success)),#30a66b);color:#fff;box-shadow:var(--shadow-success)}.result-header.failed{background:linear-gradient(150deg,hsl(var(--dark)),hsl(var(--dark-2)));color:hsl(var(--text-on-dark));box-shadow:var(--shadow-lg)}.result-score{font-size:3.2rem;font-family:var(--font-display);font-weight:900;line-height:1;margin-top:10px;animation:bounceIn .6s var(--ease-spring) .15s both}.stat-circle{width:88px;height:88px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;border:5px solid;margin:0 auto 10px;background:hsl(var(--bg-card));animation:popIn .4s var(--ease-spring) both}.stat-label{font-size:.75rem;color:hsl(var(--text-secondary));text-align:center;font-weight:600}.confetti-layer{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:999;overflow:hidden}.confetti-piece{position:absolute;top:-10px;width:8px;height:14px;opacity:.9;animation-name:confettiFall;animation-timing-function:cubic-bezier(.25,.46,.45,.94);animation-fill-mode:forwards;border-radius:2px}@keyframes confettiFall{0%{transform:translateY(-10px) rotate(0);opacity:1}to{transform:translateY(105vh) rotate(720deg);opacity:0}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#1419288c;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:fadeIn .2s var(--ease-out)}.modal-content{background-color:hsl(var(--bg-card));border-radius:var(--radius-2xl);width:100%;max-width:400px;max-height:calc(100dvh - 40px - var(--ad-banner-h, 0px));overflow-y:auto;padding:26px;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;gap:20px;animation:modalSlideUp .3s var(--ease-spring)}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(30px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:.85rem;font-weight:700;color:hsl(var(--text-primary))}.form-input{width:100%;padding:13px 14px;border-radius:var(--radius-md);border:1.5px solid hsl(var(--border));background-color:hsl(var(--bg-sunken));color:hsl(var(--text-primary));outline:none;font-family:var(--font-sans);font-size:.9rem;transition:all var(--transition-fast)}.form-input:focus{border-color:hsl(var(--primary));background-color:hsl(var(--bg-card));box-shadow:0 0 0 4px hsl(var(--primary) / .18)}.progress-ring{transform:rotate(-90deg)}.progress-ring-circle{transition:stroke-dashoffset .6s var(--ease-spring);transform-origin:50% 50%}.chart-container{width:100%;height:200px;position:relative;margin-top:10px}.chart-tooltip{position:absolute;background-color:hsl(var(--dark));color:hsl(var(--primary));padding:6px 10px;border-radius:6px;font-size:.75rem;pointer-events:none;z-index:10;box-shadow:var(--shadow-md);display:none}.countdown-card{background:linear-gradient(150deg,hsl(var(--dark)),hsl(var(--dark-2)));color:hsl(var(--primary));border:none;box-shadow:var(--shadow-lg)}.countdown-card .card-title{color:hsl(var(--primary))}.countdown-card .card-description{color:hsl(var(--text-on-dark-muted))}.topic-filter-btn{border:1.5px solid hsl(var(--border));background-color:hsl(var(--bg-card));color:hsl(var(--text-secondary));font-family:var(--font-sans);font-weight:700;font-size:.8rem;padding:9px 15px;border-radius:var(--radius-pill);cursor:pointer;white-space:nowrap;transition:all var(--transition-spring)}.topic-filter-btn.active{background-color:hsl(var(--dark));color:hsl(var(--primary));border-color:hsl(var(--dark));box-shadow:var(--shadow-sm);transform:translateY(-1px)}.topic-filter-btn:hover:not(.active){border-color:hsl(var(--primary));background-color:hsl(var(--primary-light));color:#9b6508}.leaderboard-podium{display:flex;justify-content:center;align-items:flex-end;gap:10px;padding:16px 0 10px;margin-top:10px}.podium-item{display:flex;flex-direction:column;align-items:center;flex:1;position:relative}.podium-item.first{order:2;z-index:2}.podium-item.second{order:1;z-index:1}.podium-item.third{order:3;z-index:1}.podium-avatar-container{position:relative;margin-bottom:6px}.podium-avatar{width:56px;height:56px;border-radius:50%;background:hsl(var(--bg-sunken));border:3px solid hsl(var(--bg-card));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;box-shadow:var(--shadow-md);color:hsl(var(--text-primary))}.first .podium-avatar{width:74px;height:74px;border-color:hsl(var(--primary));box-shadow:0 0 0 4px hsl(var(--primary) / .25),var(--shadow-md);font-size:1.4rem}.second .podium-avatar{border-color:#cbd5e1}.third .podium-avatar{border-color:#d6a15c}.podium-crown{position:absolute;top:-18px;left:50%;transform:translate(-50%);color:hsl(var(--primary));filter:drop-shadow(0 2px 4px rgba(0,0,0,.15));animation:floatY 2s ease-in-out infinite}.podium-badge{position:absolute;bottom:-4px;left:50%;transform:translate(-50%);width:22px;height:22px;border-radius:50%;background-color:hsl(var(--bg-card));color:hsl(var(--text-secondary));display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;border:2px solid hsl(var(--border))}.first .podium-badge{background-color:hsl(var(--primary));color:hsl(var(--dark));border-color:hsl(var(--primary))}.second .podium-badge{background-color:#cbd5e1;color:#334155;border-color:#cbd5e1}.third 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