/* ═══════════════════════════════════════════════════════════════
   DUELMIND — Main App Styles
   ═══════════════════════════════════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-deep:#0a0a0f;--bg-card:#12121a;--bg-elevated:#1a1a26;
  --accent:#00e5a0;--accent-dim:rgba(0,229,160,0.12);--accent-glow:rgba(0,229,160,0.3);
  --red:#ef4444;--red-dim:rgba(239,68,68,0.12);
  --warning:#ff6b35;--purple:#8b5cf6;--blue:#3b82f6;
  --text-primary:#f0f0f5;--text-secondary:#8a8a9a;--text-muted:#555568;
  --border:rgba(255,255,255,0.06);
}
html,body{height:100%;overflow:hidden}
body{font-family:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-deep);color:var(--text-primary);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
.hidden{display:none!important}
#app{height:100%;display:flex;flex-direction:column}
.view{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:12px;font-family:inherit;font-weight:600;font-size:15px;text-decoration:none;transition:all 0.15s;cursor:pointer;border:none;outline:none;-webkit-tap-highlight-color:transparent}
.btn-primary{background:var(--accent);color:#0a0a0f}
.btn-primary:hover,.btn-primary:active{box-shadow:0 0 30px var(--accent-glow)}
.btn-primary:disabled{opacity:0.5;pointer-events:none}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text-primary)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-full{width:100%}
.btn-large{padding:16px 40px;font-size:16px;border-radius:14px}

/* ─── Navigation ──────────────────────────────────────────── */
.app-nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-card);border-bottom:1px solid var(--border);flex-shrink:0;z-index:50}
.nav-brand{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:20px;text-decoration:none;color:var(--text-primary);letter-spacing:-0.5px}
.nav-brand span{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:20px}
.nav-link{color:var(--text-secondary);text-decoration:none;font-size:13px;font-weight:500;transition:color 0.15s}
.nav-link:hover,.nav-link.active{color:var(--accent)}
.nav-user{display:flex;align-items:center;gap:8px;padding:6px 14px;border-radius:100px;background:var(--bg-elevated);border:1px solid var(--border)}
.nav-elo{color:var(--accent);font-weight:700;font-size:14px;font-family:'Space Grotesk',sans-serif}
.nav-username{color:var(--text-secondary);font-size:13px;font-weight:500}

/* ─── Auth ────────────────────────────────────────────────── */
.auth-wrapper{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px}
.auth-logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:32px;margin-bottom:32px;letter-spacing:-1px}
.auth-logo span{color:var(--accent)}
.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:32px;width:100%;max-width:400px}
.auth-tabs{display:flex;gap:4px;margin-bottom:28px;background:var(--bg-elevated);border-radius:10px;padding:4px}
.auth-tab{flex:1;padding:10px;border:none;background:transparent;color:var(--text-secondary);font-family:inherit;font-weight:600;font-size:14px;border-radius:8px;cursor:pointer;transition:all 0.15s}
.auth-tab.active{background:var(--accent);color:#0a0a0f}
.auth-form{display:flex;flex-direction:column;gap:18px}
.field label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.field input{width:100%;padding:12px 16px;background:var(--bg-elevated);border:1.5px solid var(--border);border-radius:10px;color:var(--text-primary);font-family:inherit;font-size:15px;outline:none;transition:border-color 0.15s}
.field input:focus{border-color:var(--accent)}
.field input::placeholder{color:var(--text-muted)}
.auth-error{color:var(--red);font-size:13px;min-height:18px}
.auth-footer{margin-top:20px;color:var(--text-muted);font-size:13px}

/* ─── Lobby ───────────────────────────────────────────────── */
.lobby{padding:20px;max-width:500px;margin:0 auto}
.player-stats-card{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:24px;margin-bottom:24px;position:relative;overflow:hidden}
.player-stats-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--purple))}
.psc-avatar{width:56px;height:56px;border-radius:50%;background:var(--bg-elevated);display:flex;align-items:center;justify-content:center;font-size:28px;border:2px solid var(--border);margin-bottom:12px}
.psc-info h2{font-family:'Space Grotesk',sans-serif;font-size:22px;font-weight:700;margin-bottom:4px}
.psc-elo{color:var(--text-secondary);font-size:14px}
.elo-badge{color:var(--accent);font-weight:700;font-family:'Space Grotesk',sans-serif}
.psc-stats{display:flex;gap:24px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}
.stat{display:flex;flex-direction:column;align-items:center}
.stat-val{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:20px;color:var(--text-primary)}
.stat-label{font-size:12px;color:var(--text-muted);margin-top:2px}

.game-select{margin-bottom:24px}
.game-card{background:var(--bg-card);border:1.5px solid var(--border);border-radius:16px;padding:18px;display:flex;align-items:center;gap:14px;cursor:pointer;transition:all 0.15s}
.game-card.selected{border-color:var(--accent);background:var(--accent-dim)}
.gc-icon{width:48px;height:48px;border-radius:12px;background:var(--bg-elevated);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.gc-info h3{font-size:16px;font-weight:600;margin-bottom:2px}
.gc-info p{font-size:12px;color:var(--text-secondary)}
.gc-badge{margin-left:auto;padding:4px 10px;border-radius:6px;background:rgba(0,229,160,0.15);color:var(--accent);font-size:11px;font-weight:700;letter-spacing:0.5px}

.find-opponent-btn{width:100%;padding:20px;border:none;border-radius:16px;background:linear-gradient(135deg,var(--accent),#00c48c);color:#0a0a0f;font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:700;cursor:pointer;transition:all 0.15s;display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:32px;letter-spacing:0.5px}
.find-opponent-btn:hover{transform:translateY(-2px);box-shadow:0 8px 40px var(--accent-glow)}
.find-opponent-btn:active{transform:translateY(0)}
.fo-icon{font-size:24px}

.recent-section h3{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--text-secondary)}
.recent-list{display:flex;flex-direction:column;gap:8px}
.empty-state{color:var(--text-muted);font-size:14px;text-align:center;padding:20px}
.match-row{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px}
.mr-result{font-weight:700;font-size:13px;width:48px}
.mr-result.win{color:var(--accent)}
.mr-result.loss{color:var(--red)}
.mr-result.draw{color:var(--warning)}
.mr-opponent{flex:1;font-size:14px;color:var(--text-secondary);margin-left:12px}
.mr-score{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;color:var(--text-primary)}
.mr-elo{font-size:13px;margin-left:12px;font-weight:600}
.mr-elo.positive{color:var(--accent)}
.mr-elo.negative{color:var(--red)}

/* ─── Queue ───────────────────────────────────────────────── */
.queue-screen{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center}
.queue-pulse{position:relative;width:120px;height:120px;margin-bottom:32px}
.pulse-ring{position:absolute;inset:0;border-radius:50%;border:2px solid var(--accent);animation:pulseRing 2s ease-out infinite;opacity:0}
.pulse-ring.delay-1{animation-delay:0.6s}
.pulse-ring.delay-2{animation-delay:1.2s}
@keyframes pulseRing{0%{transform:scale(0.8);opacity:0.8}100%{transform:scale(1.8);opacity:0}}
.pulse-icon{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:48px;background:var(--bg-card);border-radius:50%;border:2px solid var(--accent)}
.queue-screen h2{font-family:'Space Grotesk',sans-serif;font-size:24px;margin-bottom:8px}
.queue-elo{color:var(--text-secondary);font-size:14px;margin-bottom:4px}
.queue-elo span{color:var(--accent);font-weight:600}
.queue-timer{font-family:'Space Grotesk',sans-serif;font-size:28px;font-weight:700;color:var(--accent);margin:16px 0 24px}

/* ─── Countdown Overlay ──────────────────────────────────── */
.countdown-overlay{position:fixed;inset:0;background:rgba(10,10,15,0.92);display:flex;align-items:center;justify-content:center;z-index:200}
.countdown-num{font-family:'Space Grotesk',sans-serif;font-size:120px;font-weight:700;color:var(--accent);animation:countPop 0.8s ease-out;text-shadow:0 0 60px var(--accent-glow)}
@keyframes countPop{0%{transform:scale(0.3);opacity:0}50%{transform:scale(1.2)}100%{transform:scale(1);opacity:1}}

/* ─── Game ────────────────────────────────────────────────── */
.game-screen{height:100%;display:flex;flex-direction:column;padding:0;max-width:500px;margin:0 auto;width:100%}
.game-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;flex-shrink:0}
.gh-player{display:flex;flex-direction:column;align-items:center;min-width:80px}
.gh-name{font-size:12px;color:var(--text-secondary);margin-bottom:2px;font-weight:500}
.gh-score{font-family:'Space Grotesk',sans-serif;font-size:28px;font-weight:700}
.gh-you .gh-score{color:var(--accent)}
.gh-opp .gh-score{color:var(--purple)}
.gh-round{text-align:center}
.gh-round-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;display:block}
.gh-round-num{font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:700}

.game-timer-bar{height:5px;background:var(--bg-elevated);flex-shrink:0;overflow:hidden}
.gtb-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--blue));transition:width 0.1s linear;width:100%;border-radius:0 3px 3px 0}
.gtb-fill.urgent{background:linear-gradient(90deg,var(--warning),var(--red))}

.game-question-area{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;min-height:0}
.gqa-label{font-size:14px;color:var(--text-muted);margin-bottom:12px;letter-spacing:0.5px}
.gqa-question{font-family:'Space Grotesk',sans-serif;font-size:clamp(40px,12vw,72px);font-weight:700;line-height:1.1;letter-spacing:-1px;animation:fadeIn 0.3s ease}
@keyframes fadeIn{0%{opacity:0;transform:scale(0.9)}100%{opacity:1;transform:scale(1)}}

.game-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:16px 20px 28px;flex-shrink:0}
.game-opt{padding:22px 8px;border:2px solid var(--border);border-radius:14px;background:var(--bg-card);color:var(--text-primary);font-family:'Space Grotesk',sans-serif;font-size:22px;font-weight:700;cursor:pointer;transition:all 0.1s;-webkit-tap-highlight-color:transparent;outline:none;min-height:70px}
.game-opt:hover{border-color:rgba(255,255,255,0.15);background:var(--bg-elevated)}
.game-opt:active{transform:scale(0.96)}
.game-opt.selected{border-color:var(--blue);background:rgba(59,130,246,0.12);color:var(--blue)}
.game-opt.correct{border-color:var(--accent);background:rgba(0,229,160,0.15);color:var(--accent);animation:correctFlash 0.4s ease}
.game-opt.wrong{border-color:var(--red);background:var(--red-dim);color:var(--red);animation:wrongShake 0.4s ease}
.game-opt:disabled{pointer-events:none;opacity:0.7}
@keyframes correctFlash{0%{box-shadow:0 0 0 0 var(--accent-glow)}50%{box-shadow:0 0 30px 5px var(--accent-glow)}100%{box-shadow:none}}
@keyframes wrongShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

.round-feedback{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;z-index:10;pointer-events:none}
.rf-icon{font-size:48px;margin-bottom:8px}
.rf-text{font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:700}
.rf-points{font-family:'Space Grotesk',sans-serif;font-size:28px;font-weight:700;color:var(--accent);margin-top:4px}
.rf-text.wrong-text{color:var(--red)}
.rf-points.zero{color:var(--text-muted)}

/* ─── Results ─────────────────────────────────────────────── */
.results-screen{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center}
.results-banner{margin-bottom:32px}
.rb-icon{font-size:64px;margin-bottom:12px;display:block}
.results-banner h1{font-family:'Space Grotesk',sans-serif;font-size:40px;font-weight:700;letter-spacing:2px}
.results-banner.win h1{color:var(--accent);text-shadow:0 0 40px var(--accent-glow)}
.results-banner.loss h1{color:var(--red)}
.results-banner.draw h1{color:var(--warning)}

.results-scores{display:flex;align-items:center;gap:24px;margin-bottom:32px;background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:24px 32px}
.rs-player{text-align:center}
.rs-name{display:block;font-size:14px;color:var(--text-secondary);margin-bottom:4px}
.rs-score{font-family:'Space Grotesk',sans-serif;font-size:36px;font-weight:700}
.rs-vs{color:var(--text-muted);font-size:16px;font-weight:600}

.results-elo{margin-bottom:40px}
.elo-change{display:flex;align-items:center;gap:10px;padding:16px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px}
.ec-label{font-size:13px;color:var(--text-secondary)}
.ec-before{font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:600;color:var(--text-muted)}
.ec-arrow{color:var(--text-muted)}
.ec-after{font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:700;color:var(--text-primary)}
.ec-delta{font-family:'Space Grotesk',sans-serif;font-size:16px;font-weight:700}
.ec-delta.positive{color:var(--accent)}
.ec-delta.negative{color:var(--red)}

.results-actions{display:flex;flex-direction:column;gap:12px;width:100%;max-width:320px}

/* ─── Leaderboard ─────────────────────────────────────────── */
.leaderboard-screen{padding:24px 20px;max-width:600px;margin:0 auto}
.leaderboard-screen h2{font-family:'Space Grotesk',sans-serif;font-size:24px;font-weight:700;margin-bottom:20px;text-align:center}
.lb-table{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;overflow:hidden}
.lb-row{display:flex;align-items:center;padding:14px 20px;border-bottom:1px solid var(--border)}
.lb-row:last-child{border-bottom:none}
.lb-row.lb-header{background:var(--bg-elevated);font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px;padding:10px 20px}
.lb-rank{width:40px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:15px;flex-shrink:0}
.lb-rank.gold{color:#fbbf24}
.lb-rank.silver{color:#94a3b8}
.lb-rank.bronze{color:#d97706}
.lb-name{flex:1;font-weight:600;font-size:14px}
.lb-elo{width:70px;text-align:right;font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--accent);font-size:14px}
.lb-wr{width:60px;text-align:right;font-size:13px;color:var(--text-secondary)}

/* ─── Confetti Canvas ─────────────────────────────────────── */
#confettiCanvas{position:fixed;inset:0;pointer-events:none;z-index:300}

/* ─── Responsive ──────────────────────────────────────────── */
@media(max-width:400px){
  .game-opt{padding:18px 6px;font-size:20px;min-height:60px}
  .gqa-question{font-size:40px}
  .game-header{padding:12px 14px}
  .gh-score{font-size:24px}
}
@media(min-width:768px){
  .game-screen{max-width:480px;padding:0 20px}
  .game-options{gap:14px}
  .game-opt{padding:28px;font-size:26px;border-radius:16px}
}