:root{--bg:#0f0f0f;--bg-surface:#1a1a1a;--bg-card:#222;--bg-card-2:#2a2a2a;--text:#f0f0f0;--text-muted:#d4d4d4;--accent:#e8940a;--accent-hover:#f5a823;--accent-dim:#e8940a1f;--border:#ffffff14;--border-card:#ffffff0f;--shadow:0 4px 24px #00000080;--shadow-btn:0 2px 12px #e8940a4d;--radius:12px;--radius-sm:8px;--radius-pill:999px;--win:#22c55e;--lose:#ef4444;--draw:#e8940a;--coin-face:#c8a84b;--coin-edge:#8a6914;--coin-shine:#f5d06a;--font:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;--font-mono:'SF Mono','Fira Code','Cascadia Code',monospace;--fw-normal:400;--fw-medium:500;--fw-bold:700;--fw-black:900}
[data-theme="light"]{--bg:#f8f5ef;--bg-surface:#fff;--bg-card:#f0ebe0;--bg-card-2:#e8e1d4;--text:#1a1a1a;--text-muted:#242424;--accent:#d4820a;--accent-hover:#b86d07;--accent-dim:#d4820a1a;--border:#0000001a;--border-card:#00000014;--shadow:0 4px 24px #0000001a;--shadow-btn:0 2px 12px #d4820a40;--coin-face:#b8912a;--coin-edge:#7a5e0e;--coin-shine:#e8c040}
*,::before,::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background-color:var(--bg);color:var(--text);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease,color .3s ease;min-height:100vh}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover)}
h1,h2,h3,h4{font-weight:var(--fw-bold);line-height:1.3}
h1{font-size:clamp(1.1rem,3vw,1.4rem)}
h2{font-size:clamp(1.1rem,2.5vw,1.35rem);margin-bottom:.6rem}
h3{font-size:clamp(1rem,2vw,1.15rem)}
p{margin-bottom:.9rem}
p:last-child{margin-bottom:0}
ul,ol{padding-left:1.4rem;margin-bottom:.9rem}
li{margin-bottom:.3rem}
strong{font-weight:var(--fw-bold)}
.container{width:100%;max-width:820px;margin:0 auto;padding:0 20px}
.flex-center{display:flex;justify-content:center;align-items:center}
.flex-col{display:flex;flex-direction:column;align-items:center}
.site-header{position:sticky;top:0;z-index:100;background-color:var(--bg-surface);border-bottom:1px solid var(--border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:820px;margin:0 auto;gap:12px}
.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.site-logo img{width:36px;height:36px;border-radius:8px}
.site-logo-text{font-size:1.15rem;font-weight:var(--fw-bold);color:var(--text);letter-spacing:-.02em}
.site-logo-text span{color:var(--accent)}
.header-tagline{font-size:.78rem;color:var(--text-muted);font-style:italic;flex:1;text-align:center}
.theme-toggle{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-pill);width:44px;height:24px;cursor:pointer;position:relative;transition:background .3s ease;flex-shrink:0}
.theme-toggle::after{content:'';position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--accent);transition:transform .3s ease}
[data-theme="light"] .theme-toggle::after{transform:translateX(20px)}
.theme-toggle-wrap{display:flex;align-items:center;gap:8px}
.theme-label{font-size:.72rem;color:var(--text-muted);white-space:nowrap}
.page-main{padding:32px 20px 48px;max-width:820px;margin:0 auto}
.hero-section{text-align:center;padding:40px 0 24px}
.hero-section h1{font-size:clamp(1.5rem,4vw,2rem);font-weight:var(--fw-black);letter-spacing:-.03em;margin-bottom:8px}
.hero-section .subtitle{color:var(--text-muted);font-size:.95rem;margin-bottom:0}
.coin-widget{background:var(--bg-surface);border:1px solid var(--border);border-radius:20px;padding:36px 24px;margin:24px 0;text-align:center;box-shadow:var(--shadow)}
.coin-img-wrap{display:inline-flex;justify-content:center;align-items:center;margin-bottom:20px}
#coinImg{border-radius:50%;height:140px;width:140px;cursor:pointer;transition:transform .2s ease;box-shadow:0 8px 32px #0000004d}
#coinImg:hover{transform:scale(1.05)}
@keyframes toss {
0%{transform:rotateX(0deg) scale(1)}
25%{transform:rotateX(360deg) scale(1.1)}
60%{transform:rotateX(720deg) scale(1.05)}
100%{transform:rotateX(1080deg) scale(1)}
}
.coin-result{font-size:1.8rem;font-weight:var(--fw-black);letter-spacing:-.03em;color:var(--text);margin-bottom:6px;min-height:2.4rem;transition:opacity .3s ease}
.coin-result.fading{opacity:.3}
.coin-timestamp{font-size:.78rem;color:var(--text-muted);margin-bottom:20px}
.btn-flip{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#1a1a1a;font-family:var(--font);font-size:1.05rem;font-weight:var(--fw-bold);padding:14px 36px;border:none;border-radius:var(--radius-pill);cursor:pointer;transition:background .2s ease,transform .15s ease,box-shadow .2s ease;box-shadow:var(--shadow-btn);letter-spacing:.01em}
.btn-flip:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 6px 20px #e8940a66}
.btn-flip:active{transform:translateY(0)}
.stats-panel{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin:16px 0}
.stats-panel h2{font-size:.9rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:16px}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.stat-item{background:var(--bg-card);border-radius:var(--radius-sm);padding:14px 10px;text-align:center;border:1px solid var(--border-card)}
.stat-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:6px}
.stat-value{font-size:1.4rem;font-weight:var(--fw-black);color:var(--text);line-height:1}
.stat-pct{font-size:.78rem;color:var(--accent);margin-top:4px}
.btn-reset{display:inline-block;background:transparent;color:var(--text-muted);border:1px solid var(--border);font-family:var(--font);font-size:.82rem;padding:8px 18px;border-radius:var(--radius-pill);cursor:pointer;transition:all .2s ease;text-decoration:none}
.btn-reset:hover{background:var(--bg-card);color:var(--text);border-color:var(--text-muted)}
.share-section{margin:16px 0}
.share-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);text-align:center;margin-bottom:12px}
.share-buttons{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--radius-pill);font-family:var(--font);font-size:.85rem;font-weight:var(--fw-medium);cursor:pointer;border:none;transition:filter .2s ease,transform .15s ease;text-decoration:none}
.share-btn:hover{filter:brightness(1.15);transform:translateY(-1px)}
.share-btn.facebook{background:#1877f2;color:#fff}
.share-btn.twitter{background:#1da1f2;color:#fff}
.share-btn.whatsapp{background:#25d366;color:#fff}
.share-btn.copy{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}
.btn-install{display:none;background:#0077c8;color:#fff;border:none;font-family:var(--font);font-size:.9rem;font-weight:var(--fw-medium);padding:10px 24px;border-radius:var(--radius-pill);cursor:pointer;margin:8px auto 0;transition:filter .2s ease}
.btn-install:hover{filter:brightness(1.15)}
.content-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;margin:24px 0;font-size:.92rem;color:var(--text-muted);line-height:1.75}
.content-section h2{color:var(--text);font-size:1.1rem;margin-top:20px;margin-bottom:8px}
.content-section h2:first-child{margin-top:0}
.content-section p{color:var(--text-muted)}
.content-section ul,.content-section ol{color:var(--text-muted)}
.content-section li strong{color:var(--text)}
.steps-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0}
.steps-section h2{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:20px}
.steps-list{list-style:none;padding:0;margin:0;counter-reset:step-counter}
.steps-list li{display:flex;gap:16px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--border-card);counter-increment:step-counter;margin-bottom:0}
.steps-list li:last-child{border-bottom:none}
.step-num{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--accent-dim);border:1px solid var(--accent);color:var(--accent);font-size:.8rem;font-weight:var(--fw-bold);display:flex;align-items:center;justify-content:center;margin-top:2px}
.step-text{font-size:.9rem;color:var(--text)}
.faq-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0}
.faq-section h2{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:16px}
.faq-item{border-bottom:1px solid var(--border-card);padding:4px 0}
.faq-item:last-child{border-bottom:none}
.faq-question{width:100%;background:none;border:none;color:var(--text);font-family:var(--font);font-size:.92rem;font-weight:var(--fw-medium);text-align:left;padding:14px 4px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:color .2s ease}
.faq-question:hover{color:var(--accent)}
.faq-icon{width:20px;height:20px;border-radius:50%;background:var(--bg-card);border:1px solid var(--border);flex-shrink:0;position:relative;transition:background .2s ease,transform .2s ease}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--text-muted);border-radius:2px;top:50%;left:50%;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:transform .2s ease}
.faq-item.open .faq-icon{background:var(--accent-dim)}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{display:none;padding:0 4px 14px;font-size:.88rem;color:var(--text-muted);line-height:1.7}
.faq-item.open .faq-answer{display:block}
.tool-hero{text-align:center;padding:32px 0 16px}
.tool-hero h1{font-size:clamp(1.3rem,3.5vw,1.8rem);font-weight:var(--fw-black);letter-spacing:-.03em;margin-bottom:6px}
.tool-hero p{color:var(--text-muted);font-size:.9rem;margin:0}
.flip-input-panel{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:20px 0}
.flip-input-panel label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:12px;text-align:center}
.flip-input-row{display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap}
.flip-number-input{font-family:var(--font);font-size:1.1rem;font-weight:var(--fw-bold);background:var(--bg-card);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 16px;width:140px;text-align:center;transition:border-color .2s ease;-moz-appearance:textfield}
.flip-number-input:focus{outline:none;border-color:var(--accent)}
.flip-number-input::-webkit-inner-spin-button,.flip-number-input::-webkit-outer-spin-button{-webkit-appearance:none}
.results-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:16px 0}
.results-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}
.result-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 12px;text-align:center;transition:border-color .3s ease,background .3s ease}
.result-card.win{border-color:var(--win);background:#22c55e0f}
.result-card-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--accent);font-weight:var(--fw-bold);margin-bottom:8px}
.result-card-value{font-size:1.6rem;font-weight:var(--fw-black);color:var(--text);line-height:1;margin-bottom:4px}
.result-card-pct{font-size:.8rem;color:var(--text-muted)}
.game-result-announce{text-align:center;font-size:1.15rem;font-weight:var(--fw-bold);padding:12px;border-radius:var(--radius-sm);margin:8px 0;min-height:48px;transition:all .3s ease}
.game-result-announce.heads{color:var(--win)}
.game-result-announce.tails{color:var(--win)}
.game-result-announce.draw{color:var(--draw)}
.error-msg{display:none;background:#ef44441a;border:1px solid #ef44444d;color:#ef4444;border-radius:var(--radius-sm);padding:10px 16px;font-size:.85rem;text-align:center;margin:8px 0}
.game-hero{text-align:center;padding:32px 0 16px}
.game-choice-row{display:flex;gap:12px;justify-content:center;margin:16px 0}
.choice-btn{flex:1;max-width:160px;padding:14px 10px;border:2px solid var(--border);background:var(--bg-card);color:var(--text);font-family:var(--font);font-size:1rem;font-weight:var(--fw-bold);border-radius:var(--radius);cursor:pointer;transition:all .2s ease}
.choice-btn:hover{border-color:var(--accent)}
.choice-btn.active{background:var(--accent);border-color:var(--accent);color:#1a1a1a}
.coin-3d-wrap{display:flex;justify-content:center;margin:24px 0}
.coin-3d{width:140px;height:140px;position:relative;transform-style:preserve-3d;transition:transform 3s cubic-bezier(0.23,1,0.32,1);cursor:pointer}
.coin-3d .face{position:absolute;width:100%;height:100%;border-radius:50%;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden}
.coin-3d .face img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.coin-3d .tails-face{transform:rotateX(180deg)}
@keyframes spin-heads {
0%{transform:rotateX(0) scale(1)}
15%{transform:rotateX(800deg) scale(1.3)}
100%{transform:rotateX(3960deg) scale(1)}
}
@keyframes spin-tails {
0%{transform:rotateX(0) scale(1)}
15%{transform:rotateX(800deg) scale(1.3)}
100%{transform:rotateX(3780deg) scale(1)}
}
.game-stats-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.9rem;border-radius:var(--radius-sm);overflow:hidden}
.game-stats-table th{background:var(--accent);color:#1a1a1a;padding:10px 14px;text-align:center;font-weight:var(--fw-bold);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
.game-stats-table td{background:var(--bg-card);color:var(--text);padding:12px 14px;text-align:center;border-top:1px solid var(--border);font-weight:var(--fw-bold);font-size:1.05rem}
.modal-overlay{display:none;position:fixed;inset:0;background:#000000b3;z-index:200;justify-content:center;align-items:center}
.modal-overlay.open{display:flex}
.modal-box{background:var(--bg-surface);border:1px solid var(--border);border-radius:20px;padding:32px 28px;width:90%;max-width:380px;text-align:center;animation:modalIn .25s ease}
@keyframes modalIn {
from{transform:scale(0.9);opacity:0}
to{transform:scale(1);opacity:1}
}
.modal-result{font-size:1.5rem;font-weight:var(--fw-black);margin-bottom:8px;color:var(--text)}
.modal-emoji{font-size:3rem;margin-bottom:12px}
.modal-sub{font-size:.88rem;color:var(--text-muted);margin-bottom:20px}
.modal-btn{background:var(--accent);color:#1a1a1a;border:none;font-family:var(--font);font-size:.9rem;font-weight:var(--fw-bold);padding:10px 28px;border-radius:var(--radius-pill);cursor:pointer;transition:background .2s ease}
.modal-btn:hover{background:var(--accent-hover)}
#canvas{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;display:none;z-index:199}
.yesno-circle-wrap{display:flex;justify-content:center;margin:32px 0 20px}
.yesno-circle{width:200px;height:200px;border-radius:50%;background:var(--bg-card);border:3px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .3s ease;position:relative;overflow:hidden}
.yesno-circle:hover{border-color:var(--accent)}
.yesno-response{font-size:2rem;font-weight:var(--fw-black);color:var(--text);text-transform:uppercase;letter-spacing:-.03em;text-align:center;padding:10px;z-index:1;position:relative}
@keyframes rotateCircle {
from{transform:rotateY(0deg)}
to{transform:rotateY(1800deg)}
}
.yesno-circle.spin{animation:rotateCircle 2s linear forwards}
.custom-coin-wrap{display:flex;justify-content:center;margin:24px 0}
.coin-text-3d{user-select:none;height:5em;font-size:3.5em;transition:transform 2s linear;transform-style:preserve-3d;transform-origin:center center -5px;position:relative;display:flex;align-items:center;justify-content:center}
.coin-text-3d > div{position:absolute;width:4em;display:flex;align-items:center;justify-content:center}
.coin-layer-outer,.coin-layer-inner{border:solid var(--accent) 4px;border-radius:50%;height:4em}
.coin-layer-outer{background:var(--bg-card)}
.coin-layer-inner{background:var(--bg)}
.coin-layer-outer.back{transform:translateZ(-10.1px)}
.coin-layer-inner.back{transform:translateZ(-10px)}
.coin-layer-inner.front{transform:translateZ(-0.1px)}
.coin-thickness{border:solid var(--accent) 4px;transform:rotateX(-90deg) translateY(5px)}
.coin-text-display{overflow:hidden;cursor:pointer;font-size:.9rem;font-weight:var(--fw-bold);color:var(--text)}
.custom-inputs{display:flex;gap:12px;justify-content:center;margin:16px 0;flex-wrap:wrap}
.custom-input{font-family:var(--font);font-size:.95rem;background:var(--bg-card);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 16px;width:150px;text-align:center;transition:border-color .2s ease}
.custom-input:focus{outline:none;border-color:var(--accent)}
.site-footer{background:var(--bg-surface);border-top:1px solid var(--border);padding:36px 20px 24px;margin-top:40px}
.footer-inner{max-width:820px;margin:0 auto}
.footer-nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:6px;margin-bottom:28px}
.footer-nav a{color:var(--text-muted);font-size:.82rem;padding:5px 0;display:block;transition:color .2s ease}
.footer-nav a:hover{color:var(--accent)}
.footer-divider{border:none;border-top:1px solid var(--border);margin:20px 0}
.footer-bottom{font-size:.78rem;color:var(--text-muted);line-height:1.7}
.footer-disclaimer{margin-top:12px;padding:12px 16px;background:var(--bg-card);border-radius:var(--radius-sm);border-left:3px solid var(--accent);font-size:.75rem;color:var(--text-muted)}
@keyframes fadeIn {
from{opacity:0;transform:translateY(8px)}
to{opacity:1;transform:translateY(0)}
}
.fade-in{animation:fadeIn .4s ease forwards}
@keyframes btnBounce {
0%{transform:scale(1)}
40%{transform:scale(0.93)}
100%{transform:scale(1)}
}
.btn-bounce{animation:btnBounce .4s ease}
@media (max-width: 600px) {
.header-tagline{display:none}
.stats-grid{grid-template-columns:repeat(3,1fr);gap:8px}
.stat-value{font-size:1.2rem}
.results-grid{grid-template-columns:repeat(2,1fr);gap:8px}
.results-grid-3{grid-template-columns:repeat(3,1fr);gap:6px}
.result-card-value{font-size:1.3rem}
.flip-input-row{flex-direction:column;align-items:center}
.flip-number-input{width:180px}
.share-buttons{gap:6px}
.share-btn{padding:8px 14px;font-size:.8rem}
.game-stats-table th,.game-stats-table td{padding:8px;font-size:.82rem}
.footer-nav{grid-template-columns:1fr 1fr}
.yesno-circle{width:160px;height:160px}
.yesno-response{font-size:1.6rem}
.modal-box{padding:24px 18px}
}
@media (max-width: 400px) {
.stats-grid{gap:6px}
.results-grid-3{gap:4px}
.result-card{padding:10px 6px}
.result-card-value{font-size:1.1rem}
}
.text-center{text-align:center}
.mt-8{margin-top:8px}
.mt-12{margin-top:12px}
.mt-16{margin-top:16px}
.mt-20{margin-top:20px}
.mb-0{margin-bottom:0}
.hidden{display:none!important}