@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&display=swap');
:root{--bg:#07091a;--bg2:#0d1120;--bg3:#111827;--card:#141d2e;--ac:#6366f1;--ac2:#818cf8;--t1:#f1f5f9;--t2:#94a3b8;--t3:#475569;--red:#ef4444;--brd:rgba(255,255,255,.07);--brd2:rgba(99,102,241,.4);--bl:#f0d9b5;--bd:#b58863;--r:12px;--r2:7px;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-tap-highlight-color:transparent;}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--t1);min-height:100vh;overflow-x:hidden;line-height:1.5;}
::-webkit-scrollbar{width:4px;}::-webkit-scrollbar-thumb{background:rgba(99,102,241,.5);border-radius:2px;}

.screen{position:fixed;inset:0;opacity:0;pointer-events:none;transition:opacity .25s;z-index:1;overflow-y:auto;}
.screen.active{opacity:1;pointer-events:all;z-index:2;}
.screen.fade{animation:fadeIn .25s ease forwards;}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

/* LOADING */
#screen-loading{display:flex;align-items:center;justify-content:center;overflow:hidden;}
.center-col{display:flex;flex-direction:column;align-items:center;gap:1.2rem;text-align:center;}
.crown-anim{font-size:4rem;color:var(--ac);animation:float 2s ease-in-out infinite;filter:drop-shadow(0 0 20px var(--ac));}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-8px);}}
.logo-title{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;}
.loader-bar{width:200px;height:2px;background:var(--brd);border-radius:1px;overflow:hidden;}
.loader-fill{height:100%;background:var(--ac);animation:sweep 1.4s ease-in-out infinite;}
@keyframes sweep{0%{transform:translateX(-100%);}100%{transform:translateX(400%);}}

/* AUTH */
.auth-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:radial-gradient(ellipse at 50% 0%,rgba(99,102,241,.15) 0%,transparent 60%),var(--bg);}
.auth-card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:2.5rem 2rem;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.7);animation:fadeIn .3s ease;}
.auth-logo{text-align:center;margin-bottom:1.75rem;}
.crown-lg{font-size:2.5rem;color:var(--ac);display:block;margin-bottom:.5rem;filter:drop-shadow(0 0 12px var(--ac));}
.auth-logo h2{font-size:1.75rem;font-weight:800;}
.sub{color:var(--t2);font-size:.9rem;margin-top:.2rem;}
.tab-bar{display:flex;background:var(--bg2);border-radius:var(--r2);padding:3px;gap:3px;margin-bottom:1.5rem;}
.tab{flex:1;padding:.55rem;background:transparent;border:none;color:var(--t2);cursor:pointer;font-family:'Outfit',sans-serif;font-size:.875rem;font-weight:500;border-radius:5px;transition:.2s ease;}
.tab.active{background:var(--ac);color:#fff;font-weight:700;}
.auth-form{display:none;flex-direction:column;gap:1rem;}
.auth-form.active{display:flex;}
.field{display:flex;flex-direction:column;gap:.35rem;}
.field label{font-size:.75rem;font-weight:600;color:var(--t2);letter-spacing:.05em;text-transform:uppercase;}
.field input{background:var(--bg2);border:1px solid var(--brd);border-radius:var(--r2);padding:.75rem 1rem;color:var(--t1);font-family:'Outfit',sans-serif;font-size:1rem;outline:none;transition:.2s ease;}
.field input:focus{border-color:var(--ac);box-shadow:0 0 0 3px rgba(99,102,241,.15);}
.field input::placeholder{color:var(--t3);}
.err{color:var(--red);font-size:.875rem;min-height:1.2em;text-align:center;}

/* BUTTONS */
.btn-primary{display:block;width:100%;background:var(--ac);color:#fff;border:none;border-radius:var(--r2);padding:.75rem 1.5rem;font-family:'Outfit',sans-serif;font-size:.9rem;font-weight:700;cursor:pointer;transition:.2s ease;text-align:center;}
.btn-primary:hover{background:var(--ac2);transform:translateY(-1px);box-shadow:0 6px 20px rgba(99,102,241,.35);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{display:block;width:100%;background:transparent;color:var(--t2);border:1px solid var(--brd);border-radius:var(--r2);padding:.7rem 1.5rem;font-family:'Outfit',sans-serif;font-size:.875rem;font-weight:500;cursor:pointer;transition:.2s ease;text-align:center;}
.btn-ghost:hover{border-color:var(--ac);color:var(--t1);}
.back-btn{background:transparent;border:none;color:var(--t2);font-family:'Outfit',sans-serif;font-size:.9rem;cursor:pointer;padding:.5rem .75rem;border-radius:5px;transition:.2s ease;display:inline-flex;align-items:center;gap:.4rem;font-weight:500;}
.back-btn:hover{color:var(--ac);background:rgba(99,102,241,.08);}
.icon-btn{background:var(--bg3);border:1px solid var(--brd);color:var(--t2);width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:1rem;transition:.2s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.icon-btn:hover{border-color:var(--ac);color:var(--ac);}

/* HOME */
.top-bar{display:flex;align-items:center;justify-content:space-between;padding:.9rem 2rem;border-bottom:1px solid var(--brd);background:rgba(7,9,26,.9);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10;}
.logo{font-size:1.2rem;font-weight:800;color:var(--t1);}
.user-row{display:flex;align-items:center;gap:.75rem;color:var(--t2);font-size:.875rem;}
.home-body{max-width:1100px;margin:0 auto;padding:3rem 2rem 5rem;}
.hero{margin-bottom:2.5rem;}
.hero h1{font-size:clamp(1.8rem,4vw,3rem);font-weight:800;letter-spacing:-.03em;margin-bottom:.4rem;}
.hero p{color:var(--t2);}
.game-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(195px,1fr));gap:1rem;}
.game-card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:1.5rem;cursor:pointer;transition:all .2s ease;position:relative;overflow:hidden;}
.game-card:hover{border-color:var(--brd2);transform:translateY(-5px);box-shadow:0 16px 48px rgba(0,0,0,.6),0 0 30px rgba(99,102,241,.2);}
.game-card:hover .gi{transform:scale(1.15);color:var(--ac2);}
.gi{font-size:2.5rem;display:block;margin-bottom:.9rem;color:var(--ac);transition:.2s ease;line-height:1;}
.game-card h3{font-size:1rem;font-weight:700;margin-bottom:.3rem;}
.game-card p{color:var(--t2);font-size:.85rem;line-height:1.5;}

/* MODE */
.page-wrap{max-width:900px;margin:0 auto;padding:2rem;min-height:100vh;display:flex;flex-direction:column;gap:1.75rem;}
.mode-hero{text-align:center;padding:2rem 0 1rem;}
.mode-gi{font-size:3.5rem;display:block;margin-bottom:.75rem;color:var(--ac);filter:drop-shadow(0 0 16px var(--ac));}
.mode-hero h2{font-size:2rem;font-weight:800;}
.mode-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1rem;}
.mode-card{background:var(--card);border:1px solid var(--brd);border-radius:var(--r);padding:1.75rem;display:flex;flex-direction:column;gap:.75rem;transition:all .2s;}
.mode-card:hover{border-color:var(--brd2);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.5);}
.mode-sym{font-size:2rem;}
.mode-card h3{font-size:1rem;font-weight:700;}
.mode-card p{color:var(--t2);font-size:.875rem;}
.join-row{display:flex;gap:.5rem;}
.join-row input{flex:1;background:var(--bg2);border:1px solid var(--brd);border-radius:var(--r2);padding:.65rem .9rem;color:var(--t1);font-family:'Outfit',sans-serif;font-size:1rem;text-transform:uppercase;letter-spacing:.2em;outline:none;transition:.2s;}
.join-row input:focus{border-color:var(--ac);}
.join-row .btn-primary{width:auto;}

/* WAITING */
.waiting-body{min-height:100vh;display:flex;flex-direction:column;padding:2rem;gap:2rem;}
.room-code{font-size:3rem;font-weight:800;letter-spacing:.4em;color:var(--ac);background:var(--card);border:2px solid var(--brd2);border-radius:var(--r);padding:1rem 2rem;box-shadow:0 0 30px rgba(99,102,241,.25);}
.dots{display:flex;gap:.5rem;}
.dots span{width:7px;height:7px;background:var(--ac);border-radius:50%;animation:dp 1.4s ease-in-out infinite;}
.dots span:nth-child(2){animation-delay:.2s;}
.dots span:nth-child(3){animation-delay:.4s;}
@keyframes dp{0%,80%,100%{opacity:.3;transform:scale(.8);}40%{opacity:1;transform:scale(1.3);}}

/* GAME SCREEN */
#screen-game{display:flex!important;flex-direction:column!important;height:100dvh!important;overflow:hidden!important;}
#screen-game.active{display:flex!important;}
.game-header{display:flex;align-items:center;justify-content:space-between;padding:0 1rem;height:50px;flex-shrink:0;border-bottom:1px solid var(--brd);background:rgba(7,9,26,.97);}
.game-title-wrap{display:flex;align-items:center;gap:.6rem;font-size:.95rem;font-weight:700;}
.game-badge{font-size:.65rem;font-weight:600;background:rgba(99,102,241,.15);border:1px solid rgba(99,102,241,.3);color:var(--ac2);padding:.15rem .55rem;border-radius:20px;text-transform:uppercase;}
.game-bar{display:flex;align-items:center;justify-content:space-between;padding:0 1.25rem;height:44px;flex-shrink:0;background:var(--bg2);border-bottom:1px solid var(--brd);}
.player-pill{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:500;color:var(--t2);padding:.25rem .6rem;border-radius:6px;border:1px solid transparent;transition:.2s ease;}
.player-pill.active{color:var(--t1);background:rgba(99,102,241,.1);border-color:rgba(99,102,241,.25);}
.pip{width:16px;height:16px;border-radius:50%;flex-shrink:0;}
.pip-w{background:radial-gradient(circle at 35% 35%,#fff,#c8c8e0);border:2px solid #9ca3af;}
.pip-r{background:radial-gradient(circle at 35% 35%,#f87171,#b91c1c);border:2px solid var(--red);}
.player-pill.active .pip-w{box-shadow:0 0 8px rgba(240,240,255,.7);}
.player-pill.active .pip-r{box-shadow:0 0 8px rgba(239,68,68,.7);}
.turn-txt{font-size:.825rem;font-weight:700;color:var(--ac2);}
.game-area{flex:1 1 0!important;min-height:0!important;display:flex!important;align-items:center!important;justify-content:center!important;overflow:hidden!important;padding:8px;}

/* CHESS */
.chess-wrap{display:flex;flex-direction:column;width:min(calc(100dvh - 110px),calc(100dvw - 8px),580px);height:min(calc(100dvh - 110px),calc(100dvw - 8px),580px);}
.chess-files{display:flex;padding-left:20px;}
.chess-files span{flex:1;text-align:center;font-size:10px;font-weight:600;color:var(--t3);padding-bottom:2px;}
.chess-inner{display:flex;flex:1;min-height:0;}
.chess-ranks{display:flex;flex-direction:column;width:20px;}
.chess-ranks span{flex:1;display:flex;align-items:center;justify-content:flex-end;padding-right:3px;font-size:10px;font-weight:600;color:var(--t3);}
.chess-board{display:grid;grid-template-columns:repeat(8,1fr);border:3px solid #2d3748;border-radius:3px;overflow:hidden;flex:1;box-shadow:0 20px 60px rgba(0,0,0,.8),0 0 0 1px rgba(99,102,241,.2);}
.sq{display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:background .08s;aspect-ratio:1;}
.sq.lt{background:var(--bl);}
.sq.dk{background:var(--bd);}
.sq.sel{background:#f6f641!important;}
.sq.chk{background:#e87070!important;}
.sq:active{filter:brightness(1.1);}
.pc{width:88%;height:88%;display:flex;align-items:center;justify-content:center;pointer-events:none;font-size:clamp(1.2rem,5vw,2.2rem);line-height:1;}
.pc.w{color:#fffbf0;-webkit-text-stroke:1.5px #111;text-shadow:0 2px 4px rgba(0,0,0,.9);}
.pc.b{color:#1a1030;-webkit-text-stroke:.5px rgba(200,200,255,.5);text-shadow:0 1px 0 rgba(255,255,255,.4),0 2px 4px rgba(0,0,0,.8);}
.coord{position:absolute;font-size:9px;font-weight:700;pointer-events:none;opacity:.7;font-family:'Outfit',sans-serif;}

/* MORRIS */
.morris-wrap{width:min(calc(100dvh - 110px),calc(100dvw - 8px),540px);height:min(calc(100dvh - 110px),calc(100dvw - 8px),540px);flex-shrink:0;border:2px solid var(--brd2);border-radius:var(--r);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.8);}
.morris-wrap svg{width:100%;height:100%;display:block;}

/* CHECKERS */
.checkers-board{display:grid;grid-template-columns:repeat(8,1fr);border:3px solid #2d3748;border-radius:3px;overflow:hidden;flex-shrink:0;width:min(calc(100dvh - 110px),calc(100dvw - 8px),580px);height:min(calc(100dvh - 110px),calc(100dvw - 8px),580px);box-shadow:0 20px 60px rgba(0,0,0,.8);}
.csq{display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;aspect-ratio:1;}
.csq.lt{background:var(--bl);}
.csq.dk{background:var(--bd);}
.csq.sel{background:#f6f641!important;}
.disc{width:76%;height:76%;border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative;transition:.15s ease;}
.disc.p1{background:radial-gradient(circle at 35% 35%,#fff,#d4d4f0);border:3px solid #9ca3af;box-shadow:0 3px 8px rgba(0,0,0,.4);}
.disc.p2{background:radial-gradient(circle at 35% 35%,#f87171,#7f1d1d);border:3px solid var(--red);box-shadow:0 3px 8px rgba(0,0,0,.5);}
.disc.king::after{content:'♔';position:absolute;font-size:.85rem;color:gold;}

/* CONNECT FOUR */
.c4-board{display:flex;flex-direction:column;gap:5px;padding:10px;background:#1e3a8a;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.8);width:min(calc(100dvh - 110px),calc(100dvw - 8px),490px);}
.c4-row{display:flex;gap:5px;}
.c4-cell{flex:1;aspect-ratio:1;border-radius:50%;background:var(--bg);cursor:pointer;transition:.15s ease;box-shadow:inset 0 4px 8px rgba(0,0,0,.7);}
.c4-cell:hover{background:rgba(99,102,241,.15);}
.c4-cell.p1{background:radial-gradient(circle at 40% 35%,#fde68a,#f59e0b);box-shadow:0 0 14px rgba(245,158,11,.5);}
.c4-cell.p2{background:radial-gradient(circle at 40% 35%,#f87171,#dc2626);box-shadow:0 0 14px rgba(220,38,38,.5);}
.c4-cell.win{animation:wp .5s ease-in-out infinite alternate;}
@keyframes wp{from{filter:brightness(1);}to{filter:brightness(1.8);}}

/* TIC TAC TOE */
.ttt-board{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:1rem;background:var(--card);border:2px solid var(--brd2);border-radius:var(--r);box-shadow:0 20px 60px rgba(0,0,0,.8);width:min(calc(100dvh - 140px),calc(100dvw - 8px),380px);}
.ttt-cell{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:clamp(2.5rem,12vw,5rem);cursor:pointer;background:var(--bg2);border-radius:var(--r2);transition:.15s;border:1px solid var(--brd);font-weight:800;}
.ttt-cell:hover:not(.filled){background:rgba(99,102,241,.08);border-color:rgba(99,102,241,.3);}
.ttt-cell.p1{color:var(--ac2);}
.ttt-cell.p2{color:var(--red);}
.ttt-cell.win{background:rgba(99,102,241,.15);border-color:var(--ac);animation:wp .5s ease-in-out infinite alternate;}

/* MODALS */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:300;backdrop-filter:blur(6px);}
.modal.hidden{display:none;}
.modal-box{background:var(--card);border:1px solid var(--brd2);border-radius:var(--r);padding:2rem;text-align:center;box-shadow:0 24px 64px rgba(0,0,0,.8);animation:fadeIn .2s ease;max-width:92vw;display:flex;flex-direction:column;gap:.75rem;}
.modal-box h2,.modal-box h3{font-weight:800;}
.modal-box h2{font-size:1.75rem;}
.modal-box h3{font-size:1.1rem;}
.promo-choices{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap;}
.promo-btn{width:64px;height:64px;background:var(--bg2);border:1px solid var(--brd);border-radius:var(--r2);cursor:pointer;transition:.2s;display:flex;align-items:center;justify-content:center;font-size:2.2rem;}
.promo-btn:hover{border-color:var(--ac);}
.result-icon{font-size:4rem;display:block;}
#result-msg{color:var(--t2);}
.hidden{display:none!important;}

/* RESPONSIVE */
@media(max-width:500px){
  .game-grid{grid-template-columns:repeat(2,1fr);gap:.75rem;}
  .home-body{padding:1.5rem 1rem 4rem;}
  .top-bar{padding:.75rem 1rem;}
  .mode-grid{grid-template-columns:1fr;}
  .auth-card{padding:1.75rem 1.25rem;}
  .room-code{font-size:2rem;letter-spacing:.25em;}
  .game-header,.game-bar{padding:0 .75rem;}
}