@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;400;600;700&family=Cinzel:wght@400;600&display=swap');

:root {
  --bg:         #050810;
  --panel-bg:   linear-gradient(155deg,#0d1a3a,#060d22);
  --panel-b:    #1e3a7a;
  --blue:       #1a3a8a;
  --blue-light: #2a5aca;
  --blue-glow:  rgba(42,90,202,.5);
  --accent:     #4a8aff;
  --accent-glow:rgba(74,138,255,.6);
  --p1:         #ff3b3b;
  --p1-light:   #ff6b6b;
  --p1-glow:    rgba(255,59,59,.7);
  --p2:         #ffd700;
  --p2-light:   #ffe84d;
  --p2-glow:    rgba(255,215,0,.7);
  --text:       #c8d8ff;
  --text-dim:   #4a6aaa;
  --board-bg:   #0a1a50;
  --cell-empty: #050e2a;
}


body{
  background:var(--bg);
  background-image:
    radial-gradient(ellipse at 20% 10%,#0a1535 0%,transparent 50%),
    radial-gradient(ellipse at 80% 90%,#080f25 0%,transparent 50%),
    radial-gradient(ellipse at 50% 50%,#04080f 0%,transparent 80%);
  min-height:100vh;display:flex;flex-direction:column;align-items:center;
  padding:16px 10px 60px;font-family:'Rajdhani',sans-serif;color:var(--text);
  user-select:none;
}

h1{
  font-family:'Orbitron',monospace;font-weight:900;
  font-size:clamp(1.4rem,3.5vw,2.2rem);letter-spacing:.25em;
  color:var(--accent);
  text-shadow:0 0 30px var(--accent-glow),0 0 80px rgba(74,138,255,.2);
  text-transform:uppercase;margin-bottom:2px;
}
.subtitle{
  font-family:'Cinzel',serif;font-size:.7rem;color:var(--text-dim);
  letter-spacing:.35em;text-transform:uppercase;margin-bottom:18px;
}

/* ══ NAV TABS PRINCIPAL ══ */
.nav-tabs{
  display:flex;gap:4px;margin-bottom:20px;
  background:rgba(5,14,42,.8);border:1px solid var(--panel-b);
  border-radius:14px;padding:5px;
}
.nav-tab{
  font-family:'Orbitron',monospace;font-size:.62rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;padding:9px 18px;border-radius:10px;
  cursor:pointer;border:1px solid transparent;color:var(--text-dim);background:transparent;
  transition:all .25s;
}
.nav-tab.active{
  background:linear-gradient(135deg,#1a3a8a,#2a5aca);color:var(--accent);
  border-color:var(--accent);box-shadow:0 0 18px var(--blue-glow);
}
.nav-tab:hover:not(.active){border-color:rgba(74,138,255,.3);color:var(--text);}

/* ══ PÁGINAS ══ */
.page{display:none;width:100%;max-width:1180px;}
.page.active{display:block;}

/* ═══════════════════════════════
   PÁGINA 1 – JUGAR
═══════════════════════════════ */
.main-layout{display:flex;gap:14px;align-items:flex-start;width:100%;}
.game-col{
  flex:0 0 auto;
  background:var(--panel-bg);border:2px solid var(--panel-b);border-radius:20px;
  padding:18px 16px 20px;
  box-shadow:0 0 60px rgba(42,90,202,.12),inset 0 0 50px rgba(0,0,0,.6);
}
.turn-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:8px;}
.player-card{flex:1;padding:8px 12px;border-radius:12px;border:2px solid transparent;transition:all .3s;opacity:.4;}
.player-card.active{opacity:1;}
.player-card.p1{background:rgba(255,59,59,.08);border-color:rgba(255,59,59,.3);}
.player-card.p1.active{border-color:var(--p1);box-shadow:0 0 20px var(--p1-glow);}
.player-card.p2{background:rgba(255,215,0,.08);border-color:rgba(255,215,0,.3);}
.player-card.p2.active{border-color:var(--p2);box-shadow:0 0 20px var(--p2-glow);}
.player-name{font-family:'Orbitron',monospace;font-size:.65rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;}
.player-card.p1 .player-name{color:var(--p1-light);}
.player-card.p2 .player-name{color:var(--p2-light);}
.player-score{font-family:'Orbitron',monospace;font-size:1.3rem;font-weight:900;}
.player-card.p1 .player-score{color:var(--p1);}
.player-card.p2 .player-score{color:var(--p2);}
.vs-badge{font-family:'Orbitron',monospace;font-size:.8rem;font-weight:900;color:var(--text-dim);letter-spacing:.1em;}
.mode-bar{display:flex;gap:6px;justify-content:center;margin-bottom:12px;}
.mode-btn{
  font-family:'Orbitron',monospace;font-size:.6rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;padding:6px 12px;border-radius:8px;cursor:pointer;
  border:1px solid var(--panel-b);color:var(--text-dim);background:transparent;transition:all .2s;
}
.mode-btn.active{background:var(--blue);color:var(--accent);border-color:var(--accent);box-shadow:0 0 12px var(--blue-glow);}
.mode-btn:hover:not(.active){border-color:var(--accent);color:var(--accent);}
.board-wrap{position:relative;}
.drop-hints{display:flex;gap:6px;margin-bottom:4px;padding:0 6px;}
.drop-hint{flex:1;height:18px;border-radius:50%;cursor:pointer;transition:all .2s;opacity:0;}
.drop-hint.p1-hint{background:var(--p1);box-shadow:0 0 10px var(--p1-glow);}
.drop-hint.p2-hint{background:var(--p2);box-shadow:0 0 10px var(--p2-glow);}
.drop-hint.show{opacity:.7;}
.drop-hint:hover{opacity:1!important;transform:scale(1.2);}
.board{
  background:var(--board-bg);border-radius:14px;padding:6px;
  border:2px solid var(--blue-light);
  box-shadow:0 0 40px rgba(42,90,202,.3),inset 0 0 30px rgba(0,0,0,.5);
  display:grid;grid-template-columns:repeat(7,1fr);gap:6px;
}
.cell{
  width:58px;height:58px;border-radius:50%;
  background:var(--cell-empty);border:2px solid rgba(30,58,122,.6);
  position:relative;overflow:hidden;cursor:pointer;transition:border-color .2s;
}
.cell:hover{border-color:rgba(74,138,255,.4);}
.cell::after{
  content:'';position:absolute;inset:0;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.12),transparent 60%);
  pointer-events:none;
}
.cell.p1{background:radial-gradient(circle at 40% 35%,#ff6b6b,#cc2020);border-color:var(--p1);box-shadow:0 0 16px var(--p1-glow),inset 0 -3px 8px rgba(0,0,0,.4);animation:dropIn .3s cubic-bezier(.36,.07,.19,.97);}
.cell.p2{background:radial-gradient(circle at 40% 35%,#ffe84d,#ccaa00);border-color:var(--p2);box-shadow:0 0 16px var(--p2-glow),inset 0 -3px 8px rgba(0,0,0,.4);animation:dropIn .3s cubic-bezier(.36,.07,.19,.97);}
.cell.win{animation:pulse 0.6s ease infinite alternate;}
@keyframes dropIn{0%{transform:translateY(-300%);opacity:0}80%{transform:translateY(8%)}100%{transform:translateY(0);opacity:1}}
@keyframes pulse{from{box-shadow:0 0 15px currentColor,0 0 30px currentColor;}to{box-shadow:0 0 30px currentColor,0 0 60px currentColor,0 0 5px #fff;}}
.status-bar{text-align:center;margin-top:10px;font-family:'Orbitron',monospace;font-size:.75rem;letter-spacing:.12em;color:var(--accent);min-height:20px;text-shadow:0 0 10px var(--accent-glow);}
.btn{font-family:'Orbitron',monospace;font-size:.65rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:8px 16px;border-radius:10px;cursor:pointer;background:linear-gradient(135deg,#1a3a8a,#2a5aca);color:#c8d8ff;border:1px solid var(--accent);transition:all .2s;box-shadow:0 0 15px rgba(42,90,202,.3);display:block;margin:10px auto 0;}
.btn:hover{background:linear-gradient(135deg,#2a5aca,#4a8aff);box-shadow:0 0 25px var(--accent-glow);}
.side-col{flex:0 0 340px;display:flex;flex-direction:column;gap:12px;}
.side-panel{background:var(--panel-bg);border:2px solid var(--panel-b);border-radius:18px;padding:14px;box-shadow:0 0 30px rgba(42,90,202,.07),inset 0 0 30px rgba(0,0,0,.4);}
.panel-title{font-family:'Orbitron',monospace;font-size:.68rem;font-weight:700;letter-spacing:.2em;color:var(--accent);text-transform:uppercase;border-bottom:1px solid var(--panel-b);padding-bottom:6px;margin-bottom:10px;}
.tabs{display:flex;gap:4px;margin-bottom:10px;flex-wrap:wrap;}
.tab{font-family:'Rajdhani',sans-serif;font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:4px 10px;border-radius:6px;cursor:pointer;border:1px solid var(--text-dim);color:var(--text-dim);background:transparent;transition:all .2s;}
.tab.active{background:var(--blue);color:var(--accent);border-color:var(--accent);}
.tab-content{display:none;}
.tab-content.active{display:block;}
.stat-row{display:flex;justify-content:space-between;align-items:center;padding:5px 0;border-bottom:1px solid rgba(30,58,122,.4);font-size:.82rem;}
.stat-row:last-child{border-bottom:none;}
.stat-label{color:var(--text-dim);}
.stat-val{color:var(--text);font-family:'Orbitron',monospace;font-size:.72rem;}
.stat-val.red{color:var(--p1-light);}
.stat-val.yel{color:var(--p2-light);}
.tip{background:rgba(10,26,80,.6);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:7px 10px;margin:6px 0;font-size:.8rem;line-height:1.55;color:var(--text);}
.tip strong{color:var(--accent);}
.tip.red{border-color:var(--p1);}
.tip.yel{border-color:var(--p2);}
.formula{background:#04091a;border:1px solid #1e3a7a;border-radius:8px;padding:8px 10px;margin:6px 0;font-size:.78rem;color:var(--accent);text-align:center;line-height:1.6;}
.suggest-btn{width:100%;font-family:'Orbitron',monospace;font-size:.72rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase;padding:11px 0;border-radius:12px;cursor:pointer;border:none;transition:all .25s;position:relative;overflow:hidden;background:linear-gradient(135deg,#0a2060,#1a4acc,#0a2060);background-size:200% 100%;color:#c8d8ff;box-shadow:0 0 20px rgba(42,90,202,.4);margin-bottom:12px;}
.suggest-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);transform:translateX(-100%);transition:transform .5s;}
.suggest-btn:hover::before{transform:translateX(100%);}
.suggest-btn:hover{box-shadow:0 0 35px rgba(74,138,255,.7);background-position:right;}
.suggest-btn:disabled{opacity:.4;cursor:not-allowed;}
.col-chart{display:flex;gap:5px;align-items:flex-end;height:110px;margin:4px 0 8px;}
.col-bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:3px;height:100%;cursor:pointer;}
.col-bar-outer{width:100%;flex:1;background:#050e2a;border-radius:5px 5px 0 0;border:1px solid #1e3a7a;position:relative;overflow:hidden;transition:border-color .3s;}
.col-bar-outer.win-col  {border-color:#ffd700;box-shadow:0 0 18px rgba(255,215,0,.6);animation:winGlow .8s ease infinite alternate;}
.col-bar-outer.best-col {border-color:rgba(255,255,255,.5);box-shadow:0 0 10px rgba(255,255,255,.25);animation:bestPulse 1s ease infinite alternate;}
.col-bar-outer.skull-col{border-color:#ff1a1a;box-shadow:0 0 14px rgba(255,26,26,.5);animation:skullPulse .6s ease infinite alternate;}
.col-bar-outer.bad-col  {border-color:#440000;box-shadow:none;}
@keyframes winGlow   {from{box-shadow:0 0 10px rgba(255,215,0,.4);}to{box-shadow:0 0 28px rgba(255,215,0,.9),0 0 6px #fff8a0;}}
@keyframes bestPulse {from{box-shadow:0 0 4px rgba(255,255,255,.15);}to{box-shadow:0 0 14px rgba(255,255,255,.5);}}
@keyframes skullPulse{from{box-shadow:0 0 6px rgba(255,26,26,.3);}to{box-shadow:0 0 18px rgba(255,26,26,.8);}}
.col-bar-fill{position:absolute;bottom:0;left:0;right:0;border-radius:4px 4px 0 0;transition:height .5s cubic-bezier(.34,1.56,.64,1);}
.col-win-label{font-family:'Orbitron',monospace;font-size:.52rem;font-weight:700;transition:color .3s;}
.col-num{font-size:.58rem;color:var(--text-dim);font-family:'Orbitron',monospace;}
.col-tag{font-size:.5rem;font-family:'Rajdhani',sans-serif;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:1px 4px;border-radius:3px;margin-top:1px;}
.suggest-card{border-radius:10px;padding:10px 12px;margin-top:4px;border:1px solid;transition:all .4s;font-size:.82rem;line-height:1.6;display:none;}
.suggest-card.show{display:block;}
.suggest-card.good{background:rgba(0,255,136,.06);border-color:rgba(0,255,136,.3);color:#80ffcc;}
.suggest-card.warn{background:rgba(255,200,0,.06);border-color:rgba(255,200,0,.3);color:#ffdc70;}
.suggest-card.danger{background:rgba(255,59,59,.06);border-color:rgba(255,59,59,.3);color:#ff8080;}
.suggest-card strong{display:block;font-family:'Orbitron',monospace;font-size:.75rem;letter-spacing:.1em;margin-bottom:4px;}
.sb{max-height:380px;overflow-y:auto;}
.sb::-webkit-scrollbar{width:3px;}
.sb::-webkit-scrollbar-thumb{background:var(--panel-b);border-radius:2px;}
.ai-thinking{text-align:center;font-size:.7rem;color:var(--text-dim);letter-spacing:.1em;padding:4px 0;font-family:'Orbitron',monospace;}
.dots::after{content:'...';animation:dotsAnim 1.2s infinite;}
@keyframes dotsAnim{0%{content:'.'}33%{content:'..'}66%{content:'...'}}

/* ═══════════════════════════════
   PÁGINAS INFORMATIVAS
═══════════════════════════════ */
.info-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;width:100%;}
.info-layout.single{grid-template-columns:1fr;}
.info-card{background:var(--panel-bg);border:2px solid var(--panel-b);border-radius:20px;padding:24px;box-shadow:0 0 40px rgba(42,90,202,.08),inset 0 0 40px rgba(0,0,0,.5);}
.info-card.full-width{grid-column:1/-1;}
.info-card h2{font-family:'Orbitron',monospace;font-size:.9rem;font-weight:700;letter-spacing:.2em;color:var(--accent);text-transform:uppercase;border-bottom:2px solid var(--panel-b);padding-bottom:10px;margin-bottom:16px;text-shadow:0 0 15px var(--accent-glow);}
.info-card h3{font-family:'Orbitron',monospace;font-size:.72rem;font-weight:700;letter-spacing:.15em;color:var(--p2-light);text-transform:uppercase;margin:14px 0 8px;}
.info-card p{font-size:.88rem;line-height:1.7;color:var(--text);margin-bottom:10px;}
.info-card ul{padding-left:16px;margin-bottom:10px;}
.info-card ul li{font-size:.86rem;line-height:1.7;color:var(--text);margin-bottom:4px;}
.info-card ul li::marker{color:var(--accent);}
.info-tip{background:rgba(10,26,80,.7);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;padding:10px 14px;margin:10px 0;font-size:.84rem;line-height:1.65;color:var(--text);}
.info-tip.red{border-color:var(--p1);}
.info-tip.yel{border-color:var(--p2);}
.info-tip.green{border-color:#00cc66;}
.info-tip strong{color:var(--accent);display:block;font-family:'Orbitron',monospace;font-size:.65rem;letter-spacing:.1em;margin-bottom:4px;}
.info-tip.red strong{color:var(--p1-light);}
.info-tip.yel strong{color:var(--p2-light);}
.info-tip.green strong{color:#00ff88;}
.math-box{background:#04091a;border:1px solid #1e3a7a;border-radius:10px;padding:12px 16px;margin:10px 0;color:var(--accent);text-align:center;font-size:.9rem;line-height:1.8;}
.math-label{font-size:.65rem;color:var(--text-dim);font-family:'Orbitron',monospace;letter-spacing:.12em;text-transform:uppercase;margin-bottom:4px;}

/* TABLERO VISUAL EJEMPLO */
.mini-board{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;background:#0a1a50;border-radius:10px;padding:5px;border:2px solid var(--blue-light);margin:12px 0;}
.mini-cell{width:32px;height:32px;border-radius:50%;background:var(--cell-empty);border:1px solid rgba(30,58,122,.6);position:relative;}
.mini-cell.p1{background:radial-gradient(circle at 40% 35%,#ff6b6b,#cc2020);border-color:var(--p1);box-shadow:0 0 8px var(--p1-glow);}
.mini-cell.p2{background:radial-gradient(circle at 40% 35%,#ffe84d,#ccaa00);border-color:var(--p2);box-shadow:0 0 8px var(--p2-glow);}
.mini-cell.win-cell{box-shadow:0 0 12px #00ff88;border-color:#00ff88;}
.mini-cell.hint{border:2px dashed rgba(74,138,255,.7);animation:hintPulse 1s infinite alternate;}
@keyframes hintPulse{from{border-color:rgba(74,138,255,.4);}to{border-color:rgba(74,138,255,1);}}
.board-example{display:flex;flex-direction:column;align-items:center;}
.board-example-label{font-size:.7rem;color:var(--text-dim);font-family:'Orbitron',monospace;letter-spacing:.1em;text-align:center;margin-bottom:4px;}
.col-labels{display:flex;gap:4px;padding:0 5px;margin-bottom:2px;}
.col-label{width:32px;text-align:center;font-size:.58rem;font-family:'Orbitron',monospace;color:var(--text-dim);}

/* APERTURAS / STRATEGY GRID */
.strategy-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px;}
.strategy-card{background:rgba(5,14,42,.8);border:1px solid var(--panel-b);border-radius:12px;padding:12px;}
.strategy-card h4{font-family:'Orbitron',monospace;font-size:.65rem;font-weight:700;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin-bottom:8px;}
.strategy-card p{font-size:.8rem;line-height:1.6;color:var(--text);}
.strategy-card.danger h4{color:var(--p1-light);}
.strategy-card.gold h4{color:var(--p2-light);}
.strategy-card.green h4{color:#00ff88;}

/* BADGES */
.badge{display:inline-block;font-family:'Orbitron',monospace;font-size:.55rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:2px 8px;border-radius:20px;margin-right:4px;}
.badge.r{background:rgba(255,59,59,.15);color:var(--p1-light);border:1px solid rgba(255,59,59,.3);}
.badge.y{background:rgba(255,215,0,.15);color:var(--p2-light);border:1px solid rgba(255,215,0,.3);}
.badge.b{background:rgba(74,138,255,.15);color:var(--accent);border:1px solid rgba(74,138,255,.3);}

/* TREE DIAGRAM */
.tree{font-family:'Orbitron',monospace;font-size:.62rem;color:var(--text-dim);line-height:2;background:#04091a;border:1px solid #1e3a7a;border-radius:10px;padding:12px;margin:10px 0;overflow-x:auto;}
.tree .node-max{color:var(--p1-light);}
.tree .node-min{color:var(--p2-light);}
.tree .node-val{color:var(--accent);}

/* ── WINNER MODAL ── */
.win-modal-overlay{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,.75);
  z-index:9999;align-items:center;justify-content:center;
  backdrop-filter:blur(4px);
}
.win-modal-overlay.show{display:flex;}
.win-modal{
  background:linear-gradient(155deg,#0d1a3a,#060d22);
  border:2px solid var(--panel-b);border-radius:20px;
  padding:36px 44px;text-align:center;max-width:380px;width:90%;
  box-shadow:0 0 60px rgba(74,138,255,.25);
  animation:modalPop .35s cubic-bezier(.17,.67,.3,1.3);
}
@keyframes modalPop{from{transform:scale(.7);opacity:0;}to{transform:scale(1);opacity:1;}}
.win-modal-title{
  font-family:'Orbitron',monospace;font-size:1.5rem;font-weight:900;
  letter-spacing:.15em;text-transform:uppercase;margin-bottom:8px;
}
.win-modal-sub{font-size:.9rem;color:var(--text-dim);margin-bottom:28px;line-height:1.5;}
.win-modal-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.win-modal-btn{
  font-family:'Orbitron',monospace;font-size:.7rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;padding:12px 22px;
  border-radius:12px;border:none;cursor:pointer;transition:all .2s;
}
.win-modal-btn.primary{background:linear-gradient(135deg,#1a4aaa,#2a7aff);color:#fff;}
.win-modal-btn.primary:hover{background:linear-gradient(135deg,#2a5acc,#4a9aff);transform:translateY(-2px);}
.win-modal-btn.secondary{background:rgba(255,255,255,.07);color:var(--text-dim);border:1px solid var(--panel-b);}
.win-modal-btn.secondary:hover{border-color:var(--accent);color:var(--accent);}
.win-modal-icon{font-size:3rem;margin-bottom:12px;}
.winbar-wrap{display:flex;align-items:center;gap:6px;margin-bottom:10px;}
.winbar-label{font-family:'Orbitron',monospace;font-size:.62rem;font-weight:700;white-space:nowrap;min-width:52px;}
.winbar-track{flex:1;height:10px;border-radius:5px;overflow:hidden;display:flex;background:#050e2a;border:1px solid var(--panel-b);}
.winbar-r{background:linear-gradient(90deg,#cc1010,#ff4444);transition:width .6s ease;height:100%;}
.winbar-y{background:linear-gradient(90deg,#ccaa00,#ffd700);transition:width .6s ease;height:100%;}

/* ── SUGGEST TOGGLE ── */
.suggest-toggle-btn{
  font-family:'Orbitron',monospace;font-size:.58rem;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;padding:0 10px;border-radius:10px;cursor:pointer;
  background:rgba(10,26,80,.6);color:var(--text-dim);border:1px solid var(--panel-b);
  transition:all .2s;white-space:nowrap;
}
.suggest-toggle-btn:hover{border-color:var(--accent);color:var(--accent);}

/* RESPONSIVE */
@media(max-width:900px){
  .main-layout{flex-direction:column;}
  .side-col{flex:none;width:100%;}
  .info-layout{grid-template-columns:1fr;}
  .strategy-grid{grid-template-columns:1fr;}
}
@media(max-width:500px){
  .cell{width:42px;height:42px;}
  .mini-cell{width:26px;height:26px;}
  .col-label{width:26px;}
  .nav-tab{padding:7px 10px;font-size:.55rem;}
}