/* ══════════════════════════════════════════
   TOKENS
══════════════════════════════════════════ */
:root {
  --bg:      #08091a;
  --bg2:     #0e1026;
  --surface: rgba(255,255,255,0.045);
  --surf-h:  rgba(255,255,255,0.08);
  --border:  rgba(255,255,255,0.07);
  --bord-h:  rgba(255,255,255,0.14);

  --x:      #a855f7;
  --x-glow: rgba(168,85,247,0.5);
  --o:      #22d3ee;
  --o-glow: rgba(34,211,238,0.45);

  --green:  #4ade80;
  --red:    #f87171;
  --yellow: #fbbf24;
  --muted:  #64748b;

  --text:   #f1f5f9;
  --text2:  #94a3b8;
  --text3:  #475569;

  --r:    12px;
  --r-sm: 8px;
  --r-lg: 18px;
  --r-xl: 24px;
  --pill: 999px;

  --t: 0.2s cubic-bezier(0.4,0,0.2,1);
  --font: 'Outfit', sans-serif;
}

/* ══════════════════════════════════════════
   RESET
══════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{height:100%;}
body{font-family:var(--font);background:var(--bg);color:var(--text);
  min-height:100%;-webkit-font-smoothing:antialiased;}

/* ══════════════════════════════════════════
   BACKGROUND
══════════════════════════════════════════ */
.bg-mesh{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%,rgba(168,85,247,.12) 0%,transparent 70%),
    radial-gradient(ellipse 55% 45% at 88% 80%,rgba(34,211,238,.09) 0%,transparent 70%);
}

/* ══════════════════════════════════════════
   SCREENS
══════════════════════════════════════════ */
.screen{
  position:fixed;inset:0;display:flex;
  align-items:flex-start;justify-content:center;
  z-index:1;opacity:0;pointer-events:none;
  transition:opacity .3s ease;
  overflow-y:auto;overscroll-behavior:contain;padding:1rem;
}
.screen.active{opacity:1;pointer-events:auto;}
.screen.hidden{display:none!important;}

/* Game screen: no scroll, fits viewport */
.screen#screen-game{
  overflow:hidden;padding:0;align-items:center;
}

/* ══════════════════════════════════════════
   LOBBY LAYOUT
══════════════════════════════════════════ */
.lobby-wrapper{
  width:100%;max-width:430px;
  display:flex;flex-direction:column;align-items:center;gap:1rem;
  padding:1.75rem 0 3rem;position:relative;z-index:2;
}

/* Brand */
.brand{display:flex;align-items:center;gap:.9rem;}
.brand-icon{
  width:56px;height:56px;border-radius:var(--r-lg);flex-shrink:0;
  background:linear-gradient(135deg,rgba(168,85,247,.22),rgba(34,211,238,.16));
  border:1px solid var(--bord-h);
  display:flex;align-items:center;justify-content:center;gap:5px;font-size:1rem;
}
.x-icon{color:var(--x);text-shadow:0 0 10px var(--x-glow);}
.o-icon{color:var(--o);text-shadow:0 0 10px var(--o-glow);}
.brand-title{
  font-size:1.6rem;font-weight:800;letter-spacing:-.4px;line-height:1.1;
  background:linear-gradient(135deg,var(--x),var(--o));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.brand-sub{font-size:.8rem;color:var(--text2);margin-top:.2rem;}
.brand-sub i{color:var(--green);margin-right:.25rem;}

/* Card */
.card{
  width:100%;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);
  padding:1.5rem 1.4rem;
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  display:flex;flex-direction:column;gap:.9rem;
}

/* Section Label */
.section-label{
  display:flex;align-items:center;gap:.45rem;
  font-size:.75rem;font-weight:600;color:var(--text2);
  text-transform:uppercase;letter-spacing:.07em;
}
.section-label i{color:var(--x);}

/* Field */
.field{position:relative;margin-bottom:.1rem;}
.field.no-margin{margin-bottom:0;}
.field-icon{
  position:absolute;left:.9rem;top:50%;transform:translateY(-50%);
  color:var(--text3);font-size:.8rem;pointer-events:none;transition:color var(--t);
}
input{
  width:100%;padding:.8rem .9rem .8rem 2.4rem;
  border-radius:var(--r-sm);border:1.5px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--text);
  font-family:var(--font);font-size:.93rem;outline:none;
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
input::placeholder{color:var(--text3);}
input:focus{border-color:var(--x);background:rgba(168,85,247,.05);box-shadow:0 0 0 3px rgba(168,85,247,.11);}
.field:focus-within .field-icon{color:var(--x);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.78rem 1.3rem;border-radius:var(--r-sm);border:none;cursor:pointer;
  font-family:var(--font);font-size:.9rem;font-weight:600;
  transition:var(--t);white-space:nowrap;
}
.btn i{font-size:.85rem;}
.btn.sm{padding:.55rem .9rem;font-size:.82rem;}
.btn.w-full{width:100%;}
.flex-1{flex:1;}
.mt-1{margin-top:.6rem;}

.btn-primary{
  background:linear-gradient(135deg,var(--x),#7c3aed);color:#fff;
  box-shadow:0 4px 16px rgba(168,85,247,.3);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(168,85,247,.45);}
.btn-primary:active{transform:none;filter:brightness(.9);}
.btn-primary:disabled{opacity:.5;transform:none;cursor:not-allowed;}

.btn-secondary{
  background:var(--surf-h);border:1.5px solid var(--bord-h);color:var(--text2);
}
.btn-secondary:hover{background:rgba(255,255,255,.12);color:var(--text);}

.btn-accent{
  background:linear-gradient(135deg,var(--o),#0891b2);color:#fff;
  box-shadow:0 4px 14px rgba(34,211,238,.22);
}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(34,211,238,.38);}

.btn-ghost{
  background:transparent;border:1.5px solid var(--bord-h);color:var(--text2);
}
.btn-ghost:hover{background:var(--surf-h);color:var(--text);}

.btn-icon-sm{
  width:36px;height:36px;flex-shrink:0;border-radius:var(--r-sm);
  background:var(--surface);border:1.5px solid var(--border);
  color:var(--text2);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:var(--t);
}
.btn-icon-sm:hover{border-color:var(--bord-h);color:var(--text);}
.btn-icon-sm i{font-size:.82rem;}
.icon-btn{padding:.78rem 1rem;}

/* My Badge */
.my-badge{
  display:flex;align-items:center;gap:.8rem;
  padding:.9rem 1rem;
  background:rgba(168,85,247,.06);border:1px solid rgba(168,85,247,.14);
  border-radius:var(--r);
}
.avatar{
  width:42px;height:42px;flex-shrink:0;border-radius:50%;
  background:linear-gradient(135deg,var(--x),var(--o));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;color:#fff;
  box-shadow:0 3px 12px rgba(168,85,247,.3);
}
.avatar.sm{width:34px;height:34px;font-size:.9rem;}
.badge-info{flex:1;min-width:0;}
.badge-name{font-weight:700;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.badge-meta{display:flex;align-items:center;gap:.5rem;margin-top:.22rem;flex-wrap:wrap;}
.status-pill{
  display:inline-flex;align-items:center;gap:.28rem;
  font-size:.7rem;font-weight:600;color:var(--green);
  background:rgba(74,222,128,.1);border:1px solid rgba(74,222,128,.2);
  padding:.12rem .48rem;border-radius:var(--pill);
}
.status-pill i{font-size:.4rem;}
.badge-id-wrap{font-size:.73rem;color:var(--text2);}
.badge-id-wrap strong{font-family:monospace;color:var(--x);letter-spacing:.12em;}

/* Divider */
.divider{
  display:flex;align-items:center;gap:.65rem;
  color:var(--text3);font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;
}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border);}
.count-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:18px;height:18px;border-radius:50%;
  background:var(--x);color:#fff;font-size:.65rem;font-weight:700;
  margin-left:.2rem;
}

/* Search Row */
.search-row{display:flex;gap:.45rem;align-items:stretch;}
.search-row .field{flex:1;margin-bottom:0;}

/* Found Card */
.found-card{
  display:flex;align-items:center;justify-content:space-between;gap:.6rem;
  padding:.8rem .9rem;
  background:rgba(34,211,238,.05);border:1px solid rgba(34,211,238,.14);
  border-radius:var(--r);animation:slide-up .22s ease;
}
.found-left{display:flex;align-items:center;gap:.6rem;}
.found-name{font-weight:700;font-size:.92rem;}
.found-online{font-size:.72rem;color:var(--green);margin-top:.15rem;}
.found-online i{font-size:.4rem;margin-right:.2rem;}

/* Status Message */
.status-msg{font-size:.8rem;color:var(--text2);text-align:center;min-height:1.1em;transition:color var(--t);}
.status-msg.error{color:var(--red);}
.status-msg.success{color:var(--green);}

/* ══ ONLINE PLAYERS LIST ══════════════════ */
.players-list{
  display:flex;flex-direction:column;gap:.45rem;
  max-height:220px;overflow-y:auto;
  padding-right:2px;
}
.list-empty{
  display:flex;align-items:center;justify-content:center;gap:.5rem;
  padding:1.5rem;color:var(--text3);font-size:.83rem;
}
.list-empty i{font-size:1.1rem;color:var(--muted);}

.player-row{
  display:flex;align-items:center;gap:.7rem;
  padding:.65rem .8rem;
  border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--border);
  transition:border-color var(--t),background var(--t);
  animation:slide-up .2s ease;
}
.player-row:hover{border-color:var(--bord-h);background:var(--surf-h);}

.player-row .avatar{width:32px;height:32px;font-size:.85rem;}
.player-row .p-name{flex:1;font-size:.88rem;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.player-row .p-status{
  font-size:.68rem;font-weight:600;padding:.18rem .5rem;border-radius:var(--pill);
}
.player-row .p-status.online{color:var(--green);background:rgba(74,222,128,.1);}
.player-row .p-status.playing{color:var(--yellow);background:rgba(251,191,36,.1);}
.player-row .p-status i{font-size:.4rem;margin-right:.2rem;}

.player-row .challenge-btn{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.3rem .65rem;border-radius:var(--r-sm);border:none;cursor:pointer;
  font-family:var(--font);font-size:.73rem;font-weight:600;
  background:linear-gradient(135deg,var(--x),#7c3aed);color:#fff;
  transition:var(--t);white-space:nowrap;
}
.player-row .challenge-btn:hover{transform:scale(1.05);filter:brightness(1.1);}
.player-row .challenge-btn.busy{
  background:var(--surface);color:var(--text3);
  border:1px solid var(--border);cursor:default;
}
.player-row .challenge-btn.busy:hover{transform:none;filter:none;}

/* Tips */
.tips{font-size:.77rem;color:var(--text3);display:flex;align-items:center;gap:.4rem;text-align:center;}
.tips i{color:var(--yellow);}

/* ══════════════════════════════════════════
   MODALS
══════════════════════════════════════════ */
.modal-overlay{
  position:fixed;inset:0;z-index:200;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  padding:1rem;animation:fade-in .2s ease;
}
.modal-box{
  width:100%;max-width:340px;
  background:var(--bg2);border:1px solid var(--bord-h);border-radius:var(--r-xl);
  padding:2rem 1.6rem;
  display:flex;flex-direction:column;align-items:center;gap:.9rem;text-align:center;
  animation:scale-in .28s cubic-bezier(.34,1.56,.64,1);
}
.modal-icon{
  width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,rgba(168,85,247,.2),rgba(34,211,238,.14));
  border:1px solid var(--bord-h);
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;color:var(--x);
}
.modal-box h2{font-size:1.25rem;font-weight:700;}
.modal-box p{color:var(--text2);font-size:.88rem;line-height:1.6;}
.modal-actions{display:flex;gap:.6rem;width:100%;}

/* Spinner */
.spinner-ring{
  width:48px;height:48px;
  border:3px solid var(--border);border-top-color:var(--x);
  border-radius:50%;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ══════════════════════════════════════════
   GAME SCREEN
══════════════════════════════════════════ */
.game-layout{
  width:100%;max-width:460px;
  height:100dvh;
  display:flex;flex-direction:column;align-items:center;
  gap:.6rem;
  padding:.7rem .9rem env(safe-area-inset-bottom,.7rem);
  position:relative;z-index:2;overflow:hidden;
}

/* Topbar */
.topbar{width:100%;display:flex;align-items:center;justify-content:space-between;gap:.5rem;}
.room-badge{
  display:flex;align-items:center;gap:.4rem;
  padding:.35rem .8rem;border-radius:var(--pill);
  background:var(--surface);border:1px solid var(--border);
  font-size:.74rem;font-weight:600;color:var(--text2);
}
.room-badge i{color:var(--x);font-size:.7rem;}
#room-id-display{font-family:monospace;color:var(--x);letter-spacing:.12em;}
.live-badge{display:flex;align-items:center;gap:.38rem;font-size:.72rem;font-weight:600;color:var(--green);}
.live-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--green);box-shadow:0 0 5px var(--green);
  animation:pulse-live 1.8s ease infinite;
}
@keyframes pulse-live{0%,100%{opacity:1;}50%{opacity:.5;}}

/* Scoreboard */
.scoreboard{
  width:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:.45rem;
}
.score-card{
  background:var(--surface);border:1.5px solid var(--border);border-radius:var(--r-lg);
  padding:1rem .65rem 1.15rem;
  display:flex;flex-direction:column;align-items:center;gap:.18rem;
  position:relative;overflow:hidden;transition:border-color var(--t),background var(--t);
}
.score-card.my-turn{border-color:rgba(168,85,247,.4);background:rgba(168,85,247,.07);}
.score-card.opp-turn{border-color:rgba(34,211,238,.3);background:rgba(34,211,238,.06);}
.score-symbol{font-size:1.65rem;font-weight:900;line-height:1;}
.score-symbol.x{color:var(--x);text-shadow:0 0 14px var(--x-glow);}
.score-symbol.o{color:var(--o);text-shadow:0 0 14px var(--o-glow);}
.score-name{font-size:.74rem;font-weight:600;color:var(--text2);max-width:85px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:center;}
.score-number{font-size:2rem;font-weight:800;line-height:1.15;margin-top:.2rem;}
.score-label{font-size:.64rem;color:var(--text3);text-transform:uppercase;letter-spacing:.05em;}
.active-bar{
  position:absolute;bottom:0;left:0;right:0;height:3px;border-radius:0 0 6px 6px;
  background:var(--x);transform:scaleX(0);transition:transform .28s ease;
}
.score-card.my-turn .active-bar{transform:scaleX(1);}
.score-card.opp-turn .active-bar{background:var(--o);transform:scaleX(1);}
.score-center{display:flex;align-items:center;justify-content:center;}
.vs-text{font-size:.68rem;font-weight:700;color:var(--text3);}

/* Turn Pill */
.turn-pill{
  display:inline-flex;align-items:center;gap:.42rem;
  padding:.38rem .95rem;border-radius:var(--pill);
  background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);
  font-size:.8rem;font-weight:600;color:var(--x);transition:var(--t);
}
.turn-pill i{font-size:.72rem;}
.turn-pill.opp{background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.2);color:var(--o);}

/* Board Container */
.board-container{
  width:100%;flex:1;min-height:0;
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.board{
  display:grid;grid-template-columns:repeat(3,1fr);gap:7px;
  position:relative;
  width:100%;
  max-width:min(370px,calc(100dvh - 290px),88vw);
  margin:0 auto;
}
.cell{
  aspect-ratio:1;border-radius:var(--r);
  background:var(--surface);border:1.5px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:clamp(1.8rem,7vw,3rem);font-weight:900;
  cursor:pointer;transition:var(--t);user-select:none;position:relative;overflow:hidden;
}
.cell::after{
  content:'';position:absolute;inset:0;
  background:rgba(255,255,255,.05);opacity:0;transition:opacity var(--t);border-radius:inherit;
}
.cell:not(.taken):hover{border-color:var(--bord-h);transform:scale(1.04);}
.cell:not(.taken):hover::after{opacity:1;}
.cell:not(.taken):active{transform:scale(.96);}
.cell.taken{cursor:default;}
.cell.x-cell{color:var(--x);text-shadow:0 0 18px var(--x-glow);border-color:rgba(168,85,247,.28);background:rgba(168,85,247,.07);animation:pop .2s cubic-bezier(.34,1.56,.64,1);}
.cell.o-cell{color:var(--o);text-shadow:0 0 18px var(--o-glow);border-color:rgba(34,211,238,.28);background:rgba(34,211,238,.06);animation:pop .2s cubic-bezier(.34,1.56,.64,1);}
.cell.win-cell{animation:win-flash .5s ease infinite alternate;}
@keyframes pop{from{transform:scale(.35);opacity:0;}to{transform:scale(1);opacity:1;}}
@keyframes win-flash{from{filter:brightness(1);}to{filter:brightness(1.9) saturate(1.4);}}

/* Win SVG */
.win-svg{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:9;}
#win-line{stroke:var(--x);stroke-width:.1;stroke-linecap:round;filter:drop-shadow(0 0 5px var(--x-glow));stroke-dasharray:6;stroke-dashoffset:6;transition:stroke-dashoffset .5s ease;}

/* ══ RESULT OVERLAY ════════════════════════ */
.result-panel{
  position:absolute;inset:-6px;border-radius:var(--r-lg);
  background:rgba(8,9,26,.84);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--bord-h);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.9rem;z-index:20;padding:1.5rem;
  animation:result-pop .38s cubic-bezier(.34,1.56,.64,1);
}
.result-state{display:flex;flex-direction:column;align-items:center;gap:.85rem;width:100%;}
.result-emoji{font-size:2.8rem;line-height:1;}
.result-headline{font-size:1.2rem;font-weight:700;text-align:center;}
.result-actions{display:flex;gap:.6rem;width:100%;}

@keyframes result-pop{from{opacity:0;transform:scale(.86);}to{opacity:1;transform:scale(1);}}

/* ══════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════ */
.hidden{display:none!important;}
@keyframes slide-up{from{transform:translateY(14px);opacity:0;}to{transform:translateY(0);opacity:1;}}
@keyframes fade-in{from{opacity:0;}to{opacity:1;}}
@keyframes scale-in{from{transform:scale(.83);opacity:0;}to{transform:scale(1);opacity:1;}}
::-webkit-scrollbar{width:3px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--bord-h);border-radius:var(--pill);}

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media(max-width:360px){
  .lobby-wrapper{padding:1.2rem 0 2.5rem;}
  .card{padding:1.2rem .9rem;}
  .brand-title{font-size:1.35rem;}
}
@media(max-width:480px){
  .modal-actions{flex-direction:column;}
  .game-layout{gap:.45rem;padding:.55rem .65rem .7rem;}
  .score-card{padding:.8rem .55rem 1rem;}
  .score-number{font-size:1.75rem;}
}
@media(min-width:640px){
  .game-layout{gap:.8rem;padding:1.1rem 1rem 1.3rem;}
  .board{max-width:min(410px,calc(100dvh - 300px));}
  .lobby-wrapper{padding:2.25rem 0 3.25rem;}
}
@media(min-width:1024px){
  .board{max-width:min(440px,calc(100dvh - 290px));}
  .game-layout{gap:.9rem;}
}
@media(max-height:560px) and (orientation:landscape){
  .game-layout{gap:.3rem;padding:.4rem .7rem .45rem;}
  .score-card{padding:.5rem .45rem .65rem;}
  .score-number{font-size:1.35rem;}
  .score-symbol{font-size:1.2rem;}
  .turn-pill{padding:.25rem .7rem;font-size:.73rem;}
  .brand{display:none;}
  .lobby-wrapper{padding:.5rem 0 2rem;}
}
@media(hover:none){
  .btn{min-height:44px;}
  .cell,.challenge-btn{cursor:default;}
}