:root{
  --felt-1:#0b6b3a; --felt-2:#064d29; --felt-edge:#053b20;
  --gold:#d8b15a; --gold-soft:#b9974a;
  --ink:#0e1512; --panel:#10211a; --panel-2:#0c1a14; --line:#1f3a2c;
  --text:#eaf3ee; --muted:#9fc0ad;
  --green:#2faa5a; --green-d:#1d8a47;
  --red:#d8423c; --red-d:#b22f2a;
  --amber:#e0a93b; --blue:#3d7fd0; --purple:#8a64c0; --grey:#5c6f63;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{
  font-family:"Segoe UI",Roboto,system-ui,Arial,sans-serif;
  color:#1a2420;
  background:#eceeef;
  min-height:100vh;
}
/* dark "casino" band: header + hero + trainer */
.stage{
  background:radial-gradient(1200px 700px at 50% -8%,#16352a,#08130d 78%);
  color:var(--text);
  padding-bottom:18px;
}
.serif{font-family:Georgia,"Times New Roman",serif}

/* ---------- header (full width, inner constrained, sticky) ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(9,19,13,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{max-width:1200px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.logo-mark{width:54px;height:auto;filter:drop-shadow(0 3px 6px rgba(0,0,0,.4))}
.brand-text{font-size:20px;font-weight:700;letter-spacing:.3px}
.brand-text strong{color:var(--gold)}
.header-cta{display:flex;gap:10px;align-items:center}
.btn-cta{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;font-weight:700;font-size:14px;text-decoration:none;transition:filter .15s,transform .08s;white-space:nowrap}
.btn-cta:hover{filter:brightness(1.08)}
.btn-cta:active{transform:translateY(1px)}
.btn-money{background:linear-gradient(var(--gold),var(--gold-soft));color:#241a00;box-shadow:0 4px 14px rgba(216,177,90,.25)}
.btn-tg{background:#229ed9;color:#fff}
.btn-kick{background:#53fc18;color:#0e1512;box-shadow:0 4px 14px rgba(83,252,24,.28)}
.btn-kick svg{display:block;width:18px;height:18px}

/* ---------- hero ---------- */
.hero{text-align:center;padding:52px 24px 18px}
.hero-inner{max-width:840px;margin:0 auto}
.hero-eyebrow{color:var(--gold);letter-spacing:2.5px;text-transform:uppercase;font-size:12.5px;font-weight:600;margin:0 0 12px}
.hero h1{font-size:46px;line-height:1.05;margin:0;letter-spacing:.5px}
.hero-sub{font-size:18px;color:var(--muted);margin:14px auto 0;max-width:640px;line-height:1.5}
.hero-chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}
.hero-chips span{font-size:12.5px;color:#cfe6d8;border:1px solid var(--line);padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.03)}

/* ---------- trainer section wrapper ---------- */
.trainer-section{padding:14px 16px 24px}
.section-head{text-align:center;max-width:760px;margin:18px auto 2px}
.section-head h2{font-size:13px;text-transform:uppercase;letter-spacing:2px;color:var(--gold);margin:0 0 8px}
.section-head p{color:var(--muted);font-size:14.5px;line-height:1.55;margin:0}
.section-head .rules-chip{display:inline-block;margin-top:14px}
.rules-chip{font-size:12.5px;color:var(--gold);border:1px solid var(--gold-soft);padding:7px 12px;border-radius:999px;background:rgba(216,177,90,.08)}

/* ---------- layout ---------- */
.layout{
  display:grid;grid-template-columns:300px 1fr 280px;gap:16px;
  padding:16px;max-width:1500px;margin:0 auto;width:100%;
}
.panel{
  background:linear-gradient(var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:16px;padding:16px;
  display:flex;flex-direction:column;min-height:0;
}
.panel-title{
  font-size:12px;text-transform:uppercase;letter-spacing:1.4px;
  color:var(--gold);margin:0 0 12px;font-weight:600;
}
.right .panel-title:not(:first-child){margin-top:22px}
.panel-hint{font-size:12px;color:var(--muted);line-height:1.55;margin:12px 0 0}
.panel-hint b{color:var(--gold)}

/* ---------- left: log + stats ---------- */
.log{
  flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:6px;
  min-height:180px;max-height:420px;padding-right:4px;
}
.log-row{
  font-size:13px;padding:8px 10px;border-radius:9px;background:#0c1812;
  border-left:4px solid var(--grey);display:flex;align-items:center;gap:6px;
}
.log-row.right{border-left-color:var(--green)}
.log-row.wrong{border-left-color:var(--red);background:#1a0f0e}
.log-main{flex:1;line-height:1.35}
.log-loss{color:#ff9a95;font-weight:600;font-variant-numeric:tabular-nums}
.log-q{
  width:20px;height:20px;border-radius:50%;border:none;cursor:pointer;flex:none;
  background:var(--red-d);color:#fff;font-weight:700;line-height:1;
}
.log-q:hover{background:var(--red)}
.log:empty::after{content:"Сделай первый ход — решения появятся здесь.";color:var(--muted);font-size:12.5px}

.stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:14px;
  border-top:1px solid var(--line);padding-top:14px;
}
.stat{
  background:#0b1813;border:1px solid var(--line);border-radius:11px;
  padding:9px 10px;display:flex;flex-direction:column;gap:2px;
}
.stat:last-child{grid-column:1 / -1}
.stat-val{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}
.stat-lbl{font-size:11px;color:var(--muted)}
.stat.err .stat-val{color:#ff9a95}
.stat.ev .stat-val{color:var(--amber)}

/* ---------- center: table ---------- */
.table{
  position:relative;border-radius:200px/120px;
  background:radial-gradient(120% 100% at 50% 0%,var(--felt-1),var(--felt-2) 60%,var(--felt-edge));
  border:10px solid #06130c;
  box-shadow:inset 0 0 70px rgba(0,0,0,.45),var(--shadow);
  padding:22px 26px 26px;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.zone-label{
  font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:#bfe3cd;
  display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:6px;
}
.hand-name{font-size:12px;letter-spacing:0;text-transform:none;color:var(--gold);font-weight:700}
.dealer-zone,.player-zone,.board-zone{width:100%;text-align:center}
.cards{display:flex;gap:10px;justify-content:center;min-height:104px;align-items:center;flex-wrap:wrap}
.cards.board{
  min-height:112px;gap:9px;padding:8px 12px;border-radius:16px;
  background:rgba(0,0,0,.16);border:1px solid rgba(255,255,255,.06);
  display:inline-flex;
}

/* ---------- cards ---------- */
.card{
  width:70px;height:98px;border-radius:9px;background:#fff;color:#1a1a1a;
  position:relative;box-shadow:0 4px 10px rgba(0,0,0,.4);
  border:1px solid #d8d8d8;font-weight:700;animation:deal .3s ease backwards;flex:none;
}
.card.red{color:#d23b35}
.card .corner{position:absolute;font-size:13px;line-height:.95;text-align:center}
.card .corner.tl{top:6px;left:7px}
.card .corner.br{bottom:6px;right:7px;transform:rotate(180deg)}
.card .pip{position:absolute;inset:0;display:grid;place-items:center;font-size:30px}
.card.face-down{background:linear-gradient(135deg,#3a2769,#241850);border-color:#1b1140}
.card .card-back{position:absolute;inset:6px;border-radius:6px;
  background:repeating-linear-gradient(45deg,#5a3fa0 0 6px,#412c84 6px 12px);
  border:1px solid rgba(255,255,255,.2)}
.card.card-slot{background:transparent;border:2px dashed rgba(255,255,255,.22);box-shadow:none;animation:none}
@keyframes deal{from{transform:translateY(-14px) rotate(-4deg);opacity:0}to{transform:none;opacity:1}}
.card.flip-in{animation:flipIn .4s ease-out backwards;transform-origin:50% 50%;backface-visibility:hidden}
@keyframes flipIn{0%{transform:perspective(700px) rotateY(88deg);opacity:0}55%{opacity:1}100%{transform:perspective(700px) rotateY(0);opacity:1}}

/* ---------- round message ---------- */
.round-message{min-height:24px;font-size:15px;font-weight:600;text-align:center;transition:.2s;opacity:0}
.round-message.show{opacity:1}
.round-message.win{color:#7ff0a6}
.round-message.lose{color:#ff9a95}
.round-message.push{color:#e7d9a6}

/* ---------- controls ---------- */
.controls{width:100%;max-width:540px;display:flex;flex-direction:column;gap:10px;margin-top:2px}
.decision-feedback{min-height:22px;text-align:center;font-weight:700;font-size:15px;opacity:0;transition:.15s}
.decision-feedback.show{opacity:1}
.decision-feedback.right{color:#7ff0a6}
.decision-feedback.wrong{color:#ff9a95}
.hand-note{text-align:center;font-size:13px;color:#cfe6d8;line-height:1.45;min-height:0}
.stage-note{text-align:center;font-size:12.5px;color:var(--muted);font-style:italic;line-height:1.4}
.action-buttons{display:flex;flex-direction:column;gap:10px}
.action-row{display:grid;gap:10px}
.action-row.n1{grid-template-columns:1fr}
.action-row.n2{grid-template-columns:1fr 1fr}
.action-row.n3{grid-template-columns:repeat(3,1fr)}
.action-row.n4{grid-template-columns:repeat(4,1fr)}
.btn{
  border:none;border-radius:12px;padding:14px 10px;font-size:15px;font-weight:700;
  color:#fff;cursor:pointer;letter-spacing:.3px;transition:transform .08s,filter .15s,opacity .15s;
  box-shadow:0 4px 0 rgba(0,0,0,.35);
}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(2px);box-shadow:0 2px 0 rgba(0,0,0,.35)}
.btn.disabled,.btn:disabled{opacity:.32;cursor:not-allowed;filter:grayscale(.5)}
.btn-bet{background:var(--green)}
.btn-check{background:var(--blue)}
.btn-fold{background:var(--red)}
.btn-deal{background:linear-gradient(var(--gold),var(--gold-soft));color:#241a00;width:100%;font-size:16px}
.btn-reset{background:#23150f;border:1px solid #5a2f24;color:#ffb3ab;margin-top:18px;box-shadow:none;padding:12px;width:100%;border-radius:12px;font-weight:700;cursor:pointer}
.btn-reset:hover{background:#2c1813}

/* ---------- hint ---------- */
.hint{
  width:100%;max-width:560px;background:#0a1812;border:1px solid var(--gold-soft);
  border-radius:14px;padding:16px 18px;position:relative;margin-top:4px;
}
.hint-close{position:absolute;top:10px;right:10px;background:none;border:none;color:var(--muted);
  font-size:16px;cursor:pointer}
.hint-close:hover{color:#fff}
.hint h3{margin:0 0 8px;color:var(--gold);font-size:15px}
.hint p{margin:6px 0;font-size:13.5px;line-height:1.5;color:#dceee3}
.hint b{color:#f0e4c4}
.ev-table{width:100%;border-collapse:collapse;margin-top:10px;font-size:13px}
.ev-table th,.ev-table td{border:1px solid var(--line);padding:5px 9px;text-align:left;font-variant-numeric:tabular-nums}
.ev-table tr.best{background:rgba(47,170,90,.18)}
.ev-table tr.best td{color:#9bffc0;font-weight:700}
.ev-table tr.chosen{background:rgba(216,66,60,.16)}

/* ---------- right: variant modes + options ---------- */
.mode-buttons{display:flex;flex-direction:column;gap:9px}
.mode-btn{
  text-align:left;background:#0b1813;border:1px solid var(--line);border-radius:12px;
  padding:11px 13px;color:var(--text);cursor:pointer;display:flex;flex-direction:column;gap:2px;transition:.15s;
}
.mode-btn:hover{border-color:var(--gold-soft)}
.mode-btn.active{border-color:var(--gold);background:rgba(216,177,90,.1)}
.mode-name{font-weight:700;font-size:14.5px}
.mode-desc{font-size:11.5px;color:var(--muted)}
.option-row{margin:8px 0}
.switch{display:flex;align-items:center;gap:9px;font-size:13px;color:#dceee3;cursor:pointer}
.switch input{width:16px;height:16px;accent-color:var(--gold)}

/* ---------- strategy overlay ---------- */
.chart-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:grid;place-items:center;z-index:50;padding:20px}
.chart-modal{background:#0b1813;border:1px solid var(--gold-soft);border-radius:16px;
  padding:22px 24px;max-width:760px;width:100%;max-height:90vh;overflow:auto;position:relative}
.chart-modal h2{margin:0 0 14px;font-size:17px;color:var(--gold)}
.strat-block-txt{margin-bottom:20px}
.strat-block-txt h3{margin:0 0 8px;color:var(--gold);font-size:15px;letter-spacing:.3px}
.strat-block-txt p{font-size:13.5px;color:#dceee3;line-height:1.5;margin:6px 0}
.strat-block-txt b{color:#f0e4c4}
.strat-list{margin:6px 0;padding-left:20px;font-size:13.5px;color:#dceee3;line-height:1.6}
.strat-list li{margin:4px 0}
.strat-list b{color:#f0e4c4}

/* ---------- responsive (trainer) ---------- */
@media (max-width:1100px){
  .layout{grid-template-columns:1fr}
  .table{order:-1;border-radius:24px}
  .panel{min-height:auto}
  .log{max-height:240px}
}
@media (max-width:560px){
  .card{width:54px;height:76px}
  .card .pip{font-size:22px}
  .cards{min-height:84px}
  .cards.board{min-height:92px}
  .action-row.n4{grid-template-columns:repeat(2,1fr)}
  .header-inner{flex-direction:column;align-items:stretch}
  .header-cta{justify-content:center}
  .btn-cta{flex:1;justify-content:center}
}

/* ============================================================
   EDUCATIONAL SECTIONS (light)
   ============================================================ */

/* ---- principles ---- */
.principles{background:#fff;color:#1a2420;padding:66px 24px}
.principles-inner{max-width:1140px;margin:0 auto}
.sec-eyebrow{text-align:center;color:#bb3b34;letter-spacing:3px;text-transform:uppercase;font-size:12px;font-weight:700;margin:0 0 6px}
.sec-title{text-align:center;font-family:Georgia,"Times New Roman",serif;font-size:38px;margin:0 0 20px;color:#16241d;font-weight:700}
.sec-lead{font-size:16px;line-height:1.7;color:#46524c;margin:0 0 36px}
.sec-lead b{color:#16241d}
.sub-title{font-family:Georgia,"Times New Roman",serif;font-size:23px;color:#16241d;margin:44px 0 14px;font-weight:700}
.rules-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #e8e8e8;border-left:1px solid #e8e8e8}
.rule-card{border-right:1px solid #e8e8e8;border-bottom:1px solid #e8e8e8;padding:26px 28px}
.rule-num{font-family:ui-monospace,Consolas,monospace;color:#bb3b34;font-size:12.5px;letter-spacing:1px}
.rule-card h3{font-family:Georgia,serif;font-size:21px;margin:12px 0 10px;color:#16241d}
.rule-card p{color:#5a655f;font-size:14.5px;line-height:1.6;margin:0}

.values-table{width:100%;border-collapse:collapse;margin:18px 0 0}
.values-table th{text-align:left;text-transform:uppercase;font-size:11.5px;letter-spacing:1px;color:#9aa39e;font-weight:600;padding:0 0 12px;border-bottom:1px solid #e8e8e8}
.values-table td{padding:14px 0;border-bottom:1px solid #f0f0f0;font-size:15px}
.values-table td:first-child{font-weight:700;color:#16241d}
.values-table.ranks td:nth-child(2){color:#5a655f}
.values-table.paytable td:nth-child(2){color:#2a7a48;font-weight:700;font-variant-numeric:tabular-nums}

/* ---- guide base ---- */
.guide{padding:64px 24px}
.guide-inner{max-width:1080px;margin:0 auto}
.guide-head{display:flex;align-items:center;gap:18px;margin-bottom:8px}
.guide-badge{flex:none;width:58px;height:58px;border-radius:16px;display:grid;place-items:center;background:#16241d;color:#fff}
.guide-badge svg{width:30px;height:30px}
.guide-eyebrow{margin:0 0 2px;color:#bb3b34;letter-spacing:2px;text-transform:uppercase;font-size:11.5px;font-weight:700}
.guide-title{margin:0;font-family:Georgia,"Times New Roman",serif;font-size:31px;color:#16241d;line-height:1.1}
.guide-lead{font-size:16px;line-height:1.65;color:#46524c;margin:18px 0 28px}
.guide-lead b{color:#16241d}
.guide-note-txt{font-size:14.5px;line-height:1.6;color:#54605a;margin:24px 0 12px}
.guide-note{margin:26px 0 0;padding:14px 18px;border-left:4px solid #1f7a45;background:rgba(31,122,69,.07);border-radius:0 10px 10px 0;font-size:14.5px;color:#3a463f;line-height:1.55}

/* ---- guide variants ---- */
.guide-uth{background:#fff}
.guide-uth .guide-badge{background:#16241d;color:var(--gold)}
.guide-ch{background:#eef6f0}
.guide-ch .guide-badge{background:#1f7a45;color:#fff}
.guide-ch .guide-eyebrow{color:#1f7a45}
.guide-model{background:#fff}
.guide-model .guide-badge{background:#2f3e54;color:#cfe0f5}
.guide-model .guide-eyebrow{color:#3d6fb0}
.guide-model .guide-note{border-left-color:#3d6fb0;background:rgba(61,111,176,.07)}
.guide-edge{background:#fbf2f0}
.guide-edge .guide-badge{background:#bb3b34;color:#fff}
.guide-edge .guide-note{border-left-color:#bb3b34;background:rgba(187,59,52,.06)}

/* ---- info cards (3-up) ---- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{background:#fff;border:1px solid #e6e6e6;border-radius:16px;padding:24px;border-top:4px solid #ccc;box-shadow:0 8px 24px rgba(20,40,30,.05)}
.info-card.good{border-top-color:#2a9d54}
.info-card.bad{border-top-color:#bb3b34}
.info-card.tricky{border-top-color:#c98a2a}
.ic-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;padding:4px 10px;border-radius:999px;margin-bottom:10px}
.info-card.good .ic-tag{background:#e3f4e9;color:#1f7a45}
.info-card.bad .ic-tag{background:#fae3e1;color:#bb3b34}
.info-card.tricky .ic-tag{background:#fbeed6;color:#a06a16}
.info-card h3{margin:0 0 12px;font-size:18px;color:#16241d;font-family:Georgia,serif}
.info-card p{margin:0 0 10px;font-size:14px;line-height:1.6;color:#54605a}
.info-card p:last-child{margin-bottom:0}
.info-card b{color:#16241d}

/* ---- do-grid (Casino Hold'em plays) ---- */
.do-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px}
.do-item{display:flex;gap:12px;background:#fff;border:1px solid #e6e6e6;border-radius:12px;padding:16px 18px}
.do-item p{margin:0;font-size:14px;line-height:1.55;color:#54605a}
.do-item b{color:#16241d}
.do-mark{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;color:#fff}
.do-mark.good{background:#2a9d54}
.do-mark.strong{background:#bb3b34}

/* ---- house edge ---- */
.edge-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:6px}
.edge-card{background:#16241d;color:#dfeee6;border-radius:16px;padding:26px 28px;border-top:4px solid var(--gold)}
.edge-num{font-family:Georgia,"Times New Roman",serif;font-size:46px;font-weight:800;color:var(--gold);line-height:1}
.edge-name{font-size:13px;text-transform:uppercase;letter-spacing:1.2px;color:#bfe3cd;margin:8px 0 14px;font-weight:700}
.edge-card p{margin:0;font-size:14px;line-height:1.62;color:#bcd3c6}
.edge-card b{color:#f0e4c4}

/* ---- surrender / side-bet explainer ---- */
.surrender-box{display:flex;gap:18px;align-items:flex-start;background:#16241d;color:#dfeee6;border-radius:16px;padding:24px 26px;margin-top:26px}
.surrender-box .guide-badge.sm{width:48px;height:48px;background:rgba(216,177,90,.16);color:#d8b15a}
.surrender-box .guide-badge.sm svg{width:24px;height:24px}
.surrender-box h3{margin:0 0 8px;font-size:18px;color:#fff;font-family:Georgia,serif}
.surrender-box p{margin:0;font-size:14.5px;line-height:1.65;color:#bcd3c6}
.surrender-box b{color:#f0e4c4}

/* ---- faq ---- */
.faq{background:#eceeef;padding:62px 24px}
.faq-inner{max-width:840px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #e3e6e5;border-radius:12px;padding:18px 22px;margin-bottom:12px}
.faq-item h3{margin:0 0 8px;font-size:16.5px;color:#16241d}
.faq-item p{margin:0;color:#5a655f;font-size:14.5px;line-height:1.6}

/* ---- footer ---- */
.site-footer{background:#0a160f;color:#9fc0ad;padding:42px 24px 28px}
.footer-inner{max-width:1140px;margin:0 auto;display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:flex-start}
.footer-brand .brand-text{font-size:18px;color:#eaf3ee}
.footer-note{font-size:12.5px;max-width:560px;line-height:1.6;margin:12px 0 0;color:#7f9d8c}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{color:#bfe3cd;text-decoration:none;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-bottom{max-width:1140px;margin:24px auto 0;text-align:center;color:#5f7468;font-size:12px;border-top:1px solid #14241a;padding-top:18px}

/* ---- responsive (educational) ---- */
@media (max-width:860px){
  .card-grid-3{grid-template-columns:1fr}
  .do-grid{grid-template-columns:1fr}
  .edge-grid{grid-template-columns:1fr}
  .guide-title{font-size:26px}
}
@media (max-width:820px){
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .sec-title{font-size:30px}
  .rules-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .rules-grid{grid-template-columns:1fr}
  .footer-inner{flex-direction:column}
  .guide-head{flex-direction:row}
  .guide-badge{width:48px;height:48px}
  .guide-badge svg{width:24px;height:24px}
  .surrender-box{flex-direction:column}
  .edge-num{font-size:38px}
}