/* ═══════════════════════════════════════════════════════
   Kentro v2 – Design System
═══════════════════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#080a12;--bg2:#0e1018;--bg3:#141720;--bg4:#1c2030;--bg5:#242840;
  --surface:rgba(14,16,24,0.97);--glass:rgba(255,255,255,0.035);
  --border:rgba(255,255,255,0.06);--border2:rgba(255,255,255,0.11);--border3:rgba(255,255,255,0.18);
  --text:#dce4f5;--text2:#8892b4;--text3:#4a5280;--text4:#2a3060;
  --accent:#6d28d9;--accent2:#4c1d95;--accent3:#7c3aed;
  --accent-glow:rgba(109,40,217,0.4);--accent-light:rgba(109,40,217,0.12);
  --green:#10b981;--green2:#059669;--green-glow:rgba(16,185,129,0.3);
  --gold:#f59e0b;--gold2:#d97706;--gold-glow:rgba(245,158,11,0.3);
  --red:#ef4444;--red2:#dc2626;--blue:#3b82f6;--blue2:#2563eb;
  --orange:#f97316;--pink:#ec4899;--cyan:#06b6d4;
  --radius:16px;--radius-sm:10px;--radius-xs:7px;
  --shadow:0 16px 56px rgba(0,0,0,0.8);--shadow-sm:0 4px 20px rgba(0,0,0,0.5);
  --ease:.16s cubic-bezier(.4,0,.2,1);--ease-spring:.3s cubic-bezier(.34,1.56,.64,1);
  --bd-dark:#7c5a2a;--bd-light:#e8d5a8;--bd-border:#4a3010;--bd-radius:12px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;
}
[data-board="green"]{--bd-dark:#5a7a42;--bd-light:#d8e8c0;--bd-border:#2d5a1a}
[data-board="blue"]{--bd-dark:#2a5a9a;--bd-light:#c0d8f0;--bd-border:#0a2a6a}
[data-board="midnight"]{--bd-dark:#2a1a5a;--bd-light:#100820;--bd-border:#4a2a9a}
[data-board="coral"]{--bd-dark:#9a3a1a;--bd-light:#f8e0d0;--bd-border:#6a1a00}
[data-board="slate"]{--bd-dark:#3a4a5a;--bd-light:#d0dce8;--bd-border:#1a2a3a}

html,body{width:100%;min-height:100%;background:var(--bg);color:var(--text);
  font-family:var(--font);overflow-x:hidden;-webkit-tap-highlight-color:transparent;
  line-height:1.5}
body::before{content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 10%,rgba(109,40,217,.05) 0%,transparent 70%),
    radial-gradient(ellipse 50% 60% at 85% 90%,rgba(16,185,129,.04) 0%,transparent 70%),
    radial-gradient(ellipse 40% 40% at 50% 50%,rgba(109,40,217,.02) 0%,transparent 80%)}

::-webkit-scrollbar{width:3px;height:3px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:99px}

/* ── Keyframes ─────────────────────────────────────────────────────────────── */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.3)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes confettiFall{to{transform:translateY(110vh) rotate(720deg);opacity:0}}
@keyframes slideInRight{from{transform:translateX(100%);opacity:0}to{transform:none;opacity:1}}
@keyframes slideInUp{from{transform:translateY(100%);opacity:0}to{transform:none;opacity:1}}
@keyframes kingGlow{0%,100%{filter:drop-shadow(0 0 5px #f59e0b)}50%{filter:drop-shadow(0 0 14px #f59e0b)}}
@keyframes countdownPulse{0%{transform:scale(1)}50%{transform:scale(1.08);color:var(--red)}100%{transform:scale(1)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes drawWarning{0%,100%{border-color:var(--gold)}50%{border-color:var(--red)}}

/* ── Layout ────────────────────────────────────────────────────────────────── */
.screen{display:none;min-height:100vh;position:relative;z-index:1;flex-direction:column;align-items:center}
.screen.active{display:flex}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:var(--glass);pointer-events:none;border-radius:inherit}
.card-title{font-size:10px;font-weight:800;color:var(--text3);text-transform:uppercase;
  letter-spacing:1.4px;margin-bottom:14px;display:flex;align-items:center;gap:7px}
.card-title::before{content:'';width:2px;height:12px;background:linear-gradient(180deg,var(--accent3),var(--green));
  border-radius:2px;flex-shrink:0}

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border:none;border-radius:12px;font-size:14px;font-weight:700;
  cursor:pointer;transition:var(--ease);width:100%;letter-spacing:.2px;color:#fff;
  background:linear-gradient(135deg,var(--accent3),var(--accent2));
  box-shadow:0 4px 20px var(--accent-glow),inset 0 1px 0 rgba(255,255,255,.1)}
.btn:hover:not(:disabled){transform:translateY(-2px);filter:brightness(1.1);box-shadow:0 8px 28px var(--accent-glow)}
.btn:active:not(:disabled){transform:scale(.96);filter:brightness(.95)}
.btn:disabled{opacity:.3;cursor:not-allowed;transform:none!important;filter:none!important}
.btn-sm{padding:8px 16px;font-size:12px;border-radius:9px;width:auto;font-weight:700}
.btn-xs{padding:5px 11px;font-size:11px;border-radius:7px;width:auto;font-weight:700}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green2))!important;box-shadow:0 4px 18px var(--green-glow)!important}
.btn-green:hover:not(:disabled){box-shadow:0 8px 26px var(--green-glow)!important}
.btn-ghost{background:var(--bg4)!important;border:1px solid var(--border)!important;color:var(--text2)!important;box-shadow:none!important}
.btn-ghost:hover:not(:disabled){border-color:var(--accent3)!important;color:var(--accent3)!important;background:var(--accent-light)!important}
.btn-danger{background:linear-gradient(135deg,var(--red),var(--red2))!important;box-shadow:0 4px 16px rgba(239,68,68,.35)!important}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold2))!important;color:#111!important;box-shadow:0 4px 16px var(--gold-glow)!important}
.btn-blue{background:linear-gradient(135deg,var(--blue),var(--blue2))!important;box-shadow:0 4px 16px rgba(59,130,246,.3)!important}
.btn-warn{background:linear-gradient(135deg,var(--orange),#c04010)!important;box-shadow:0 4px 14px rgba(249,115,22,.3)!important}
.btn-outline{background:transparent!important;border:1.5px solid var(--accent3)!important;color:var(--accent3)!important;box-shadow:none!important}
.btn-outline:hover:not(:disabled){background:var(--accent-light)!important}

/* ── Inputs ─────────────────────────────────────────────────────────────────── */
.inp{width:100%;padding:14px 18px;font-size:14px;border-radius:11px;
  background:var(--bg3);border:1.5px solid var(--border);color:var(--text);
  outline:none;transition:var(--ease);font-family:var(--font)}
.inp:focus{border-color:var(--accent3);box-shadow:0 0 0 3px rgba(109,40,217,.15)}
.inp::placeholder{color:var(--text3)}
.inp-sm{padding:9px 14px;font-size:12px;border-radius:9px}

/* ── Pills ──────────────────────────────────────────────────────────────────── */
.pill{display:inline-flex;align-items:center;gap:5px;padding:5px 13px;
  border-radius:99px;font-size:11px;font-weight:700;border:1px solid}
.pill-green{color:var(--green);border-color:rgba(16,185,129,.25);background:rgba(16,185,129,.08)}
.pill-purple{color:var(--accent3);border-color:rgba(109,40,217,.25);background:rgba(109,40,217,.08)}
.pill-gold{color:var(--gold);border-color:rgba(245,158,11,.25);background:rgba(245,158,11,.08)}
.pill-red{color:var(--red);border-color:rgba(239,68,68,.25);background:rgba(239,68,68,.08)}
.pill-blue{color:var(--blue);border-color:rgba(59,130,246,.25);background:rgba(59,130,246,.08)}

/* ── Dot ────────────────────────────────────────────────────────────────────── */
.dot-live{width:7px;height:7px;border-radius:50%;background:currentColor;animation:pulseDot 1.4s ease-in-out infinite}

/* ── Spinner ────────────────────────────────────────────────────────────────── */
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.2);
  border-top-color:#fff;border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}
.spinner-sm{width:12px;height:12px;border-width:2px}

/* ── Toast ──────────────────────────────────────────────────────────────────── */
#toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none;max-width:340px}
.toast{background:var(--bg3);border:1px solid var(--border2);border-radius:13px;
  padding:12px 18px;font-size:13px;box-shadow:var(--shadow);animation:slideInRight .3s ease;pointer-events:all;
  backdrop-filter:blur(12px)}
.toast-warn{border-color:rgba(239,68,68,.4);background:rgba(20,8,8,.97)}
.toast-info{border-color:rgba(109,40,217,.35)}
.toast-admin{border-color:rgba(245,158,11,.4);background:rgba(20,16,0,.97)}
.toast-success{border-color:rgba(16,185,129,.4);background:rgba(4,18,12,.97)}
.toast-draw{border-color:var(--gold);background:rgba(20,16,0,.98);font-weight:700;animation:drawWarning 1s ease infinite,slideInRight .3s ease}

/* ── Confetti ───────────────────────────────────────────────────────────────── */
.confetti-piece{position:fixed;top:-20px;pointer-events:none;z-index:9999;animation:confettiFall linear forwards}

/* ─────────────────────────────────────────────────────────────
   LOGIN SCREEN
───────────────────────────────────────────────────────────── */
#s-login{justify-content:center;padding:24px;background:var(--bg)}
.login-wrap{width:100%;max-width:440px;animation:fadeUp .6s ease}
.login-hero{text-align:center;margin-bottom:28px}
.login-logo{width:96px;height:96px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(135deg,#1a0050,#080018);
  border:2px solid rgba(109,40,217,.4);display:flex;align-items:center;justify-content:center;
  font-size:52px;box-shadow:0 0 60px rgba(109,40,217,.5),0 0 120px rgba(109,40,217,.2)}
.login-title{font-size:44px;font-weight:900;letter-spacing:-2px;margin-bottom:6px;
  background:linear-gradient(135deg,#fff 10%,var(--accent3) 55%,var(--green));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.login-sub{color:var(--text2);font-size:13px;font-weight:500}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;
  padding:32px;box-shadow:var(--shadow)}
.login-fields{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}
.login-footer{text-align:center;font-size:11px;color:var(--text3);margin-top:14px}
.login-divider{display:flex;align-items:center;gap:12px;margin:12px 0;color:var(--text3);font-size:11px}
.login-divider::before,.login-divider::after{content:'';flex:1;height:1px;background:var(--border)}

/* ─────────────────────────────────────────────────────────────
   TOPBAR
───────────────────────────────────────────────────────────── */
.topbar{width:100%;background:rgba(8,10,18,.96);border-bottom:1px solid var(--border);
  padding:12px 24px;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}
.brand{font-size:22px;font-weight:900;letter-spacing:-1px;
  background:linear-gradient(135deg,#fff,var(--accent3),var(--green));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.topbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* ─────────────────────────────────────────────────────────────
   LOBBY LAYOUT
───────────────────────────────────────────────────────────── */
#s-lobby{padding:0}
.lobby-body{width:100%;max-width:1360px;padding:20px 24px;
  display:grid;gap:18px;grid-template-columns:300px 1fr 300px}
@media(max-width:1100px){.lobby-body{grid-template-columns:260px 1fr 260px}}
@media(max-width:880px){.lobby-body{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.lobby-body{grid-template-columns:1fr;padding:14px 16px}}

/* ─────────────────────────────────────────────────────────────
   PROFILE SECTION
───────────────────────────────────────────────────────────── */
.avatar{border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;flex-shrink:0;position:relative}
.av-xl{width:80px;height:80px;font-size:28px;margin:0 auto 14px;
  box-shadow:0 0 40px rgba(109,40,217,.4),0 0 0 3px var(--accent-light)}
.av-lg{width:52px;height:52px;font-size:18px}
.av-sm{width:34px;height:34px;font-size:12px}
.av-xs{width:26px;height:26px;font-size:9px}

.p-name{text-align:center;font-size:20px;font-weight:800;letter-spacing:-.5px}
.p-elo{text-align:center;font-size:28px;font-weight:900;color:var(--gold);margin:4px 0;letter-spacing:-1px}
.p-sub{text-align:center;font-size:11px;color:var(--text2);margin-bottom:4px}
.p-rd{text-align:center;font-size:10px;color:var(--text3);margin-bottom:14px}

.stats-g{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:14px}
.sbox{background:var(--bg4);border-radius:10px;padding:10px 4px;text-align:center;border:1px solid var(--border)}
.snum{font-size:22px;font-weight:900;letter-spacing:-1px}
.slbl{font-size:9px;color:var(--text3);margin-top:2px;text-transform:uppercase;letter-spacing:.6px;font-weight:700}
.sw .snum{color:var(--green)}.sl .snum{color:var(--red)}.sd .snum{color:var(--text2)}

.win-bar{height:5px;background:var(--bg4);border-radius:99px;overflow:hidden;margin:6px 0 4px}
.win-fill{height:100%;background:linear-gradient(90deg,var(--green),#34d399);border-radius:99px;transition:width .6s ease}

.streak-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 12px;
  border-radius:99px;font-size:11px;font-weight:800}
.str-pos{background:rgba(16,185,129,.12);color:var(--green);border:1px solid rgba(16,185,129,.2)}
.str-neg{background:rgba(239,68,68,.12);color:var(--red);border:1px solid rgba(239,68,68,.2)}
.str-nil{background:var(--bg4);color:var(--text3);border:1px solid var(--border)}

/* ─────────────────────────────────────────────────────────────
   DIFFICULTY CHIPS
───────────────────────────────────────────────────────────── */
.diff-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:14px}
.dchip{padding:10px 4px;border-radius:10px;border:1.5px solid var(--border);background:var(--bg4);
  color:var(--text3);cursor:pointer;text-align:center;font-size:14px;transition:var(--ease);position:relative}
.dchip .dlbl{font-size:8px;display:block;color:var(--text3);margin-top:2px;font-weight:700;text-transform:uppercase}
.dchip:hover{border-color:var(--accent3);color:var(--accent3);background:var(--accent-light)}
.dchip.sel{border-color:var(--accent3);color:var(--accent3);background:var(--accent-light);
  box-shadow:0 0 14px var(--accent-glow)}

/* ─────────────────────────────────────────────────────────────
   COLOR PICKER
───────────────────────────────────────────────────────────── */
.color-row{display:flex;gap:8px}
.color-opt{flex:1;padding:10px 6px;border-radius:10px;border:1.5px solid var(--border);
  background:var(--bg4);cursor:pointer;text-align:center;font-size:12px;font-weight:700;
  color:var(--text2);transition:var(--ease)}
.color-opt.active{border-color:var(--accent3);background:var(--accent-light);color:var(--text)}
.color-opt:hover:not(.active){border-color:var(--border2);color:var(--text)}

/* ─────────────────────────────────────────────────────────────
   LEADERBOARD
───────────────────────────────────────────────────────────── */
.lb-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border)}
.lb-row:last-child{border-bottom:none}
.lb-rank{font-size:12px;font-weight:900;width:24px;text-align:center;color:var(--text3);flex-shrink:0}
.lb-info{flex:1;min-width:0}
.lb-name{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}
.lb-name:hover{color:var(--accent3)}
.lb-meta{font-size:10px;color:var(--text3);margin-top:1px}
.lb-elo{font-size:14px;font-weight:900;color:var(--gold);flex-shrink:0}
.r1{color:#ffd700!important}.r2{color:#c0c0c0!important}.r3{color:#cd7f32!important}

/* ─────────────────────────────────────────────────────────────
   HISTORY LIST
───────────────────────────────────────────────────────────── */
.hist-row{display:flex;align-items:center;justify-content:space-between;
  padding:8px 0;border-bottom:1px solid var(--border);font-size:12px;gap:6px;flex-wrap:wrap}
.hist-row:last-child{border-bottom:none}
.hbadge{padding:3px 9px;border-radius:99px;font-size:10px;font-weight:800}
.hbw{background:rgba(16,185,129,.15);color:var(--green)}
.hbl{background:rgba(239,68,68,.15);color:var(--red)}
.hbd{background:var(--bg4);color:var(--text3)}

/* ─────────────────────────────────────────────────────────────
   LIVE GAMES
───────────────────────────────────────────────────────────── */
.live-row{display:flex;align-items:center;justify-content:space-between;
  padding:9px 0;border-bottom:1px solid var(--border);gap:8px}
.live-row:last-child{border-bottom:none}
.live-info{flex:1}
.live-name{font-size:13px;font-weight:700}
.live-meta{font-size:10px;color:var(--text3);margin-top:2px}

/* ─────────────────────────────────────────────────────────────
   CHAT
───────────────────────────────────────────────────────────── */
.chat-log{overflow-y:auto;display:flex;flex-direction:column;gap:3px}
.cmsg{font-size:12px;line-height:1.5;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.025)}
.cmsg:last-child{border-bottom:none}
.cuser{font-weight:800;color:var(--accent3)}
.cadmin .cuser{color:var(--gold)}
.ctime{font-size:9px;color:var(--text3);margin-left:5px}
.chat-row{display:flex;gap:8px;margin-top:10px}

/* ─────────────────────────────────────────────────────────────
   ANNOUNCEMENTS
───────────────────────────────────────────────────────────── */
.ann-item{background:rgba(245,158,11,.06);border:1px solid rgba(245,158,11,.15);
  border-radius:10px;padding:10px 14px;font-size:12px;margin-bottom:6px}
.ann-t{font-size:9px;color:var(--text3);margin-top:3px}

/* ─────────────────────────────────────────────────────────────
   GAME SCREEN
───────────────────────────────────────────────────────────── */
#s-game{padding:0}
.g-topbar{width:100%;background:rgba(8,10,18,.97);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;
  padding:10px 20px;gap:8px;position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}

.turn-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;
  border-radius:99px;font-weight:800;font-size:12px;border:1.5px solid;transition:var(--ease)}
.tp-w{border-color:rgba(255,255,255,.15);background:rgba(255,255,255,.04);color:var(--text)}
.tp-b{border-color:rgba(16,185,129,.3);background:rgba(16,185,129,.08);color:var(--green)}
.tp-end{border-color:rgba(245,158,11,.3);background:rgba(245,158,11,.08);color:var(--gold)}
.tp-draw{border-color:rgba(239,68,68,.4);background:rgba(239,68,68,.08);color:var(--red);animation:drawWarning 1.5s ease infinite}
.tdot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.tdot-w{background:rgba(255,255,255,.8)}
.tdot-b{background:var(--green);animation:pulseDot 1s infinite}
.tdot-draw{background:var(--red);animation:pulseDot .7s infinite}

.g-timer{font-size:20px;font-weight:900;font-variant-numeric:tabular-nums;color:var(--gold);min-width:56px;text-align:right}

.g-body{flex:1;display:flex;width:100%;max-width:1400px;margin:0 auto;
  gap:14px;padding:14px 20px;align-items:flex-start}
.g-left{width:220px;flex-shrink:0;display:flex;flex-direction:column;gap:10px}
.g-center{flex:1;display:flex;flex-direction:column;align-items:center;gap:10px;min-width:0}
.g-right{width:220px;flex-shrink:0;display:flex;flex-direction:column;gap:10px}
@media(max-width:1000px){
  .g-body{flex-wrap:wrap;justify-content:center;padding:10px}
  .g-left,.g-right{width:100%;max-width:540px;flex-direction:row;flex-wrap:wrap;gap:8px}
  .g-left .card,.g-right .card{flex:1;min-width:150px}
}

/* ── Eval Bar ─────────────────────────────────────────────────────────────── */
.eval-wide{height:8px;background:var(--bg4);border-radius:99px;overflow:hidden;position:relative}
.eval-w-fill{position:absolute;left:0;top:0;height:100%;background:linear-gradient(90deg,rgba(255,255,255,.3),rgba(255,255,255,.6));border-radius:99px;transition:width .6s ease}
.eval-b-fill{position:absolute;right:0;top:0;height:100%;background:linear-gradient(90deg,var(--accent3),#3a00a0);border-radius:99px;transition:width .6s ease}
.eval-lbls{display:flex;justify-content:space-between;font-size:10px;color:var(--text3);margin-top:4px}

.cap-row{display:flex;flex-wrap:wrap;gap:2px;min-height:14px}
.cap-pc{font-size:14px;line-height:1}

/* ── Board ────────────────────────────────────────────────────────────────── */
#board{display:grid;grid-template-columns:repeat(10,1fr);grid-template-rows:repeat(10,1fr);
  width:min(calc(100vw - 28px),min(calc(100vh - 190px),530px));
  aspect-ratio:1/1;border-radius:var(--bd-radius);
  border:clamp(7px,2vw,20px) solid var(--bd-border);
  background:var(--bd-dark);
  box-shadow:0 0 70px rgba(0,0,0,.7),0 0 30px rgba(0,0,0,.5),var(--shadow)}
.cell{position:relative;display:flex;justify-content:center;align-items:center;cursor:default}
.dark{background:var(--bd-dark)}.light{background:var(--bd-light)}
.cell-lbl-tl{position:absolute;top:2px;left:3px;font-size:clamp(5px,1.2vw,12px);
  color:rgba(0,0,0,.28);pointer-events:none;font-weight:800;line-height:1}
.cell-lbl-br{position:absolute;bottom:2px;right:3px;font-size:clamp(5px,1.2vw,12px);
  color:rgba(0,0,0,.28);pointer-events:none;font-weight:800;line-height:1}

/* ── Pieces ───────────────────────────────────────────────────────────────── */
.piece{width:76%;height:76%;border-radius:50%;cursor:pointer;transition:transform .12s ease;position:relative;will-change:transform}
.piece:hover{transform:scale(1.08)}
.W{background:radial-gradient(circle at 33% 28%,#fff 0%,#ddd 45%,#b8a060 100%);
  box-shadow:0 3px 12px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.8),inset 0 -1px 0 rgba(0,0,0,.2)}
.B{background:radial-gradient(circle at 33% 28%,#555 0%,#1c1c1c 55%,#080808 100%);
  box-shadow:0 3px 12px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.12),inset 0 -1px 0 rgba(0,0,0,.5)}
.king::after{content:'♛';position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:clamp(10px,3.5vw,26px);color:#f59e0b;text-shadow:0 0 8px #f59e0b;
  animation:kingGlow 2.2s ease-in-out infinite}

/* ── Cell States ──────────────────────────────────────────────────────────── */
.selected-piece{box-shadow:0 0 0 3px #10b981,0 0 20px rgba(16,185,129,.5)!important}
.hint-from{box-shadow:0 0 0 3px var(--gold),0 0 16px rgba(245,158,11,.5)!important}
.cell.selected-cell::before{content:'';position:absolute;inset:0;background:rgba(16,185,129,.15);pointer-events:none}
.cell.highlight::after{content:'';position:absolute;width:32%;height:32%;
  background:rgba(16,185,129,.75);border-radius:50%;pointer-events:none;box-shadow:0 0 12px rgba(16,185,129,.5)}
.cell.last-from{background:rgba(109,40,217,.22)!important}
.cell.last-to{background:rgba(109,40,217,.35)!important}
.cell.hint-cell::after{content:'';position:absolute;width:32%;height:32%;
  background:rgba(245,158,11,.75);border-radius:50%;pointer-events:none}

/* ── Move Log ─────────────────────────────────────────────────────────────── */
.move-log{display:flex;flex-wrap:wrap;gap:4px;max-height:100px;overflow-y:auto}
.ml-entry{font-size:10px;padding:2px 8px;border-radius:6px;font-variant-numeric:tabular-nums;cursor:default}
.ml-n{background:var(--bg4);color:var(--text2)}
.ml-cap{background:rgba(239,68,68,.15);color:var(--red)}
.ml-cur{border:1.5px solid var(--accent3);color:var(--accent3)}
.ml-ai{border-left:2px solid var(--cyan);padding-left:6px}

.spec-tag{display:inline-flex;align-items:center;gap:5px;padding:4px 12px;
  border-radius:99px;font-size:11px;font-weight:700;
  background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.25);color:var(--blue)}

/* ── Draw Countdown ───────────────────────────────────────────────────────── */
.draw-bar{width:100%;max-width:530px;background:var(--bg4);border:1.5px solid var(--gold);
  border-radius:10px;padding:10px 16px;text-align:center;animation:drawWarning 1.5s ease infinite}
.draw-bar .dc-num{font-size:22px;font-weight:900;color:var(--gold);animation:countdownPulse 1s ease infinite}
.draw-bar .dc-lbl{font-size:10px;color:var(--text2);margin-top:2px;font-weight:600}

/* ── Game Over Overlay ────────────────────────────────────────────────────── */
#game-result-overlay{display:none;position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,.8);align-items:center;justify-content:center;backdrop-filter:blur(10px)}
#game-result-overlay.show{display:flex}
.result-card{background:var(--surface);border:1px solid var(--border2);border-radius:24px;
  padding:44px 40px;text-align:center;max-width:390px;width:92%;
  animation:fadeUp .4s ease;box-shadow:var(--shadow);position:relative;overflow:hidden}
.result-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent3),var(--green),var(--gold))}
.res-emoji{font-size:76px;margin-bottom:16px;display:block}
.res-title{font-size:30px;font-weight:900;margin-bottom:8px;letter-spacing:-1px}
.res-sub{color:var(--text2);font-size:13px;margin-bottom:8px}
.res-elo{font-size:16px;font-weight:700;color:var(--gold);margin-bottom:24px;
  padding:8px 16px;background:rgba(245,158,11,.08);border-radius:10px;
  border:1px solid rgba(245,158,11,.2);display:inline-block}
.res-btns{display:flex;flex-direction:column;gap:9px}

/* ─────────────────────────────────────────────────────────────
   ADMIN SCREEN
───────────────────────────────────────────────────────────── */
#s-admin{padding:0}
.admin-header{width:100%;background:rgba(8,10,18,.97);border-bottom:1px solid var(--border);
  padding:14px 26px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}
.admin-brand{font-size:20px;font-weight:900;color:var(--red);letter-spacing:-.5px}
.admin-body{width:100%;max-width:1440px;padding:22px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
@media(max-width:1000px){.admin-body{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.admin-body{grid-template-columns:1fr}}

.admin-stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
.astat{background:var(--bg4);border-radius:12px;padding:14px;border:1px solid var(--border);text-align:center}
.astat-num{font-size:24px;font-weight:900;letter-spacing:-1px}
.astat-lbl{font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:.6px;font-weight:700;margin-top:3px}

.urow{display:flex;align-items:center;justify-content:space-between;gap:6px;
  padding:9px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}
.urow:last-child{border-bottom:none}
.urow-info{flex:1;min-width:100px}
.urow-name{font-size:13px;font-weight:700}
.urow-meta{font-size:10px;color:var(--text3);margin-top:2px}
.urow-btns{display:flex;gap:4px;flex-wrap:wrap}

.empty-state{text-align:center;padding:24px;color:var(--text3);font-size:12px}
.dm-form{display:flex;flex-direction:column;gap:9px;margin-top:10px}
.announce-list{max-height:120px;overflow-y:auto;display:flex;flex-direction:column;gap:5px;margin-top:10px}

/* ─────────────────────────────────────────────────────────────
   BOARD EDITOR
───────────────────────────────────────────────────────────── */
.ed-pc-btn{transition:var(--ease)}
.ed-pc-btn:hover{border-color:var(--accent3)!important;background:var(--accent-light)!important}
.ed-pc-btn.active{border-color:var(--accent3)!important;background:var(--accent-light)!important;box-shadow:0 0 12px var(--accent-glow)}

/* ─────────────────────────────────────────────────────────────
   ANALYSIS / REPLAY SCREEN
───────────────────────────────────────────────────────────── */
#s-replay{padding:0}

/* Move quality badges */
.q-badge{display:inline-block;padding:2px 7px;border-radius:5px;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.5px}
.q-excellent{background:rgba(16,185,129,.2);color:var(--green);border:1px solid rgba(16,185,129,.3)}
.q-good{background:rgba(16,185,129,.1);color:var(--green);border:1px solid rgba(16,185,129,.2)}
.q-neutral{background:var(--bg4);color:var(--text3);border:1px solid var(--border)}
.q-inaccuracy{background:rgba(245,158,11,.1);color:var(--gold);border:1px solid rgba(245,158,11,.2)}
.q-mistake{background:rgba(249,115,22,.15);color:var(--orange);border:1px solid rgba(249,115,22,.25)}
.q-blunder{background:rgba(239,68,68,.15);color:var(--red);border:1px solid rgba(239,68,68,.25)}
.q-ai{background:rgba(6,182,212,.1);color:var(--cyan);border:1px solid rgba(6,182,212,.2)}

.rp-game-item{display:flex;align-items:center;justify-content:space-between;padding:9px 0;
  border-bottom:1px solid var(--border);gap:6px;font-size:12px;flex-wrap:wrap}
.rp-game-item:last-child{border-bottom:none}

.ml-qual{display:flex;align-items:center;gap:4px}

/* Replay controls */
.rp-controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;flex-wrap:wrap;gap:8px}
.rp-slider-wrap{width:100%;position:relative}
input[type=range]{width:100%;accent-color:var(--accent3);height:4px;cursor:pointer}

/* Start from position CTA */
.sfp-btn{width:100%;margin-top:10px;background:linear-gradient(135deg,var(--green),var(--green2))!important;
  box-shadow:0 4px 16px var(--green-glow)!important}

/* ─────────────────────────────────────────────────────────────
   PLAYER PROFILE SCREEN
───────────────────────────────────────────────────────────── */
#s-profile{padding:0}
.profile-hero{width:100%;max-width:900px;padding:32px 24px 0;margin:0 auto}
.profile-body{width:100%;max-width:900px;padding:20px 24px;
  display:grid;grid-template-columns:300px 1fr;gap:18px;margin:0 auto}
@media(max-width:680px){.profile-body{grid-template-columns:1fr}}

.elo-history-wrap{height:80px;position:relative;overflow:hidden;border-radius:8px;background:var(--bg4);margin-top:10px}

/* ─────────────────────────────────────────────────────────────
   THEME CHIPS
───────────────────────────────────────────────────────────── */
.theme-chips{display:flex;gap:7px;flex-wrap:wrap}
.tc{width:28px;height:28px;border-radius:50%;cursor:pointer;border:2px solid transparent;
  transition:var(--ease);flex-shrink:0}
.tc:hover,.tc.active{border-color:var(--accent3);transform:scale(1.1)}

/* ── Best Move Suggestion ─────────────────────────────────────────────────── */
/* Pulsing green glow on the suggested FROM square's piece */
.best-piece {
  box-shadow: 0 0 0 3px #10b981, 0 0 22px rgba(16,185,129,.7) !important;
  animation: bestPieceGlow 1.6s ease-in-out infinite;
}
@keyframes bestPieceGlow {
  0%,100% { box-shadow: 0 0 0 3px #10b981, 0 0 22px rgba(16,185,129,.5); }
  50%      { box-shadow: 0 0 0 4px #10b981, 0 0 30px rgba(16,185,129,.9); }
}

/* Arrow dot on the best-move TO square */
.cell.best-to::after {
  content: '';
  position: absolute;
  width: 36%;
  height: 36%;
  background: rgba(16,185,129,.82);
  border-radius: 50%;
  pointer-events: none;
  box-shadow: 0 0 14px rgba(16,185,129,.6);
  animation: bestDotPulse 1.6s ease-in-out infinite;
}
@keyframes bestDotPulse {
  0%,100% { transform: scale(1); opacity: 0.8; }
  50%      { transform: scale(1.15); opacity: 1; }
}

/* Subtle background on best-from square */
.cell.best-from::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(16,185,129,.12);
  pointer-events: none;
}

/* Best-move toggle button active/inactive states */
.btn-best-move { transition: background 0.2s, color 0.2s, border-color 0.2s; }
.btn-best-move:not(.active) {
  background: rgba(100,100,100,.12) !important;
  color: var(--text3) !important;
  border-color: rgba(100,100,100,.2) !important;
}

/* Eval bar smooth transition */
.eval-wide .eval-w-fill,
.eval-wide .eval-b-fill {
  transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Score text colour states */
#eval-score-text.adv-white { color: var(--green) !important; }
#eval-score-text.adv-black { color: var(--red) !important; }
#eval-score-text.adv-equal { color: var(--text2) !important; }

/* ═══════════════════════════════════════════════════
   Kentro v3 — New feature styles
══════════════════════════════════════════════════ */

/* ── Rank-up overlay ──────────────────────────────── */
.rankup-overlay {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.7); backdrop-filter: blur(6px);
  opacity: 0; pointer-events: none;
  transition: opacity .4s ease;
}
.rankup-overlay.show { opacity: 1; pointer-events: auto; }
.rankup-card {
  background: linear-gradient(135deg, #1a0050, #3a0080);
  border: 2px solid var(--gold); border-radius: 20px;
  padding: 40px 48px; text-align: center;
  box-shadow: 0 0 60px rgba(245,158,11,.4);
  animation: rankupPop .5s cubic-bezier(.34,1.56,.64,1);
}
@keyframes rankupPop {
  from { transform: scale(.5) rotate(-10deg); opacity: 0; }
  to   { transform: scale(1) rotate(0); opacity: 1; }
}
.rankup-stars { font-size: 32px; margin-bottom: 8px;
  animation: starSpin 1s ease infinite alternate; }
@keyframes starSpin {
  from { text-shadow: 0 0 10px var(--gold); }
  to   { text-shadow: 0 0 30px var(--gold), 0 0 60px var(--gold); }
}

/* ── Best-move highlights ─────────────────────────── */
.best-piece {
  box-shadow: 0 0 0 3px #10b981, 0 0 22px rgba(16,185,129,.7) !important;
  animation: bestGlow 1.6s ease-in-out infinite;
}
@keyframes bestGlow {
  0%,100% { box-shadow: 0 0 0 3px #10b981, 0 0 18px rgba(16,185,129,.5); }
  50%      { box-shadow: 0 0 0 4px #10b981, 0 0 30px rgba(16,185,129,.9); }
}
.cell.best-to::after {
  content: ''; position: absolute; width: 36%; height: 36%;
  background: rgba(16,185,129,.82); border-radius: 50%;
  pointer-events: none; box-shadow: 0 0 14px rgba(16,185,129,.6);
  animation: bestDot 1.6s ease-in-out infinite;
}
@keyframes bestDot {
  0%,100% { transform: scale(1); opacity: .8; }
  50%      { transform: scale(1.15); opacity: 1; }
}
.cell.best-from::before {
  content: ''; position: absolute; inset: 0;
  background: rgba(16,185,129,.12); pointer-events: none;
}
.btn-best-move { transition: background .2s, color .2s, border-color .2s; }
.btn-best-move:not(.active) {
  background: rgba(100,100,100,.12) !important;
  color: var(--text3) !important; border-color: rgba(100,100,100,.2) !important;
}

/* ── Timer clocks ─────────────────────────────────── */
.player-clock {
  display: flex; align-items: center; gap: 4px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 4px 10px; font-size: 11px;
}
.tmr-lbl { color: var(--text3); font-size: 10px; }
.tmr-val { font-size: 14px; font-weight: 800;
  font-variant-numeric: tabular-nums; color: var(--text); }
.tmr-low { color: var(--red) !important;
  animation: timerPulse .8s ease-in-out infinite; }
@keyframes timerPulse {
  0%,100% { opacity: 1; } 50% { opacity: .4; }
}

/* ── Spectator reaction float ─────────────────────── */
.reaction-float {
  position: absolute; font-size: 28px; pointer-events: none;
  animation: floatUp 2.2s ease-out forwards; z-index: 50;
}
@keyframes floatUp {
  0%   { transform: translateY(0) scale(1); opacity: 1; }
  80%  { transform: translateY(-80px) scale(1.3); opacity: 1; }
  100% { transform: translateY(-120px) scale(.8); opacity: 0; }
}

/* ── Achievement badges ───────────────────────────── */
.ach-badge {
  display: flex; align-items: center; gap: 5px;
  background: linear-gradient(135deg,rgba(109,40,217,.18),rgba(109,40,217,.06));
  border: 1px solid rgba(109,40,217,.28); border-radius: 10px;
  padding: 5px 9px; font-size: 11px; color: var(--text2);
  cursor: default; transition: transform .15s;
}
.ach-badge:hover { transform: scale(1.05); }
.ach-badge > :first-child { font-size: 16px; }

/* ── Eval bar smooth ──────────────────────────────── */
.eval-wide .eval-w-fill,
.eval-wide .eval-b-fill {
  transition: width .7s cubic-bezier(.4,0,.2,1);
}
#eval-score-text.adv-white { color: var(--green) !important; }
#eval-score-text.adv-black { color: var(--red)   !important; }
#eval-score-text.adv-equal { color: var(--text2)  !important; }

/* ── PvP / Puzzle board styles ────────────────────── */
#pz-board .cell, #op-board .cell { position: relative; overflow: hidden; cursor: pointer; }

/* ── Tournament bracket ───────────────────────────── */
.t-match {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 0; border-bottom: 1px solid var(--border);
  font-size: 13px; font-weight: 600; color: var(--text2);
}
.t-winner { color: var(--gold); font-weight: 900; }

/* ── Guest badge ──────────────────────────────────── */
#guest-badge { font-size: 10px; padding: 3px 8px; border-radius: 6px; }

/* ── ELO chart container ──────────────────────────── */
#prof-elo-chart svg { display: block; }

/* ── Piece movement animation ─────────────────────── */
.piece { will-change: transform; }

/* ── PvP info banner ──────────────────────────────── */
#pvp-info { background: rgba(109,40,217,.12); border: 1px solid rgba(109,40,217,.25);
  border-radius: 8px; padding: 3px 10px; }

/* ── Puzzle leaderboard ───────────────────────────── */
#pz-leaderboard .lb-row { padding: 6px 0; }

/* ── Opening screen ───────────────────────────────── */
#op-board { cursor: default; }