:root{color-scheme:dark;--bg-color: #0b0f19;--bg-gradient: radial-gradient(circle at 15% 50%, rgba(20, 184, 166, .15), transparent 25%), radial-gradient(circle at 85% 30%, rgba(56, 189, 248, .15), transparent 25%);--ink: #f8fafc;--muted: #94a3b8;--line: rgba(255, 255, 255, .08);--card-bg: rgba(15, 23, 42, .6);--card-border: rgba(255, 255, 255, .05);--accent: #14b8a6;--accent-strong: #0d9488;--accent-soft: rgba(20, 184, 166, .15);--accent-glow: 0 0 20px rgba(20, 184, 166, .4);--gold: #fbbf24;--shadow: 0 25px 50px -12px rgba(0, 0, 0, .5);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);--glass-blur: blur(12px)}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background-color:var(--bg-color);background-image:var(--bg-gradient);background-attachment:fixed;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:280px 1fr;transition:grid-template-columns .4s cubic-bezier(.16,1,.3,1)}.shell.is-collapsed{grid-template-columns:88px 1fr}.sidebar{padding:32px 24px;border-right:1px solid var(--line);background:#0b0f1999;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);display:flex;flex-direction:column;justify-content:flex-start;gap:48px;box-shadow:1px 0 20px #0003;z-index:10;transition:padding .4s cubic-bezier(.16,1,.3,1);position:relative}.shell.is-collapsed .sidebar{padding:32px 16px;align-items:center}.brand-header{display:flex;flex-direction:column;align-items:flex-start;gap:12px;min-height:48px}.shell.is-collapsed .brand-header{align-items:center}.collapse-toggle{position:absolute;top:4px;right:-36px;background:var(--card-bg);border:1px solid var(--card-border);color:var(--muted);border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;z-index:20;box-shadow:var(--glass-shadow)}.collapse-toggle:hover{background:var(--accent-soft);color:var(--accent);border-color:var(--accent);transform:scale(1.1)}.shell.is-collapsed .collapse-toggle{right:-30px}.brand-logo{height:48px;object-fit:contain;filter:drop-shadow(0 0 8px rgba(255,255,255,.1))}.brand-title{height:40px;object-fit:contain;filter:drop-shadow(0 0 8px rgba(255,255,255,.1))}.mt-3{margin-top:12px}.content{padding:32px 40px;position:relative;overflow-y:auto;max-height:100vh}.page-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:32px;padding-bottom:24px;border-bottom:1px solid var(--line)}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.2em;font-size:.75rem;font-weight:600;color:var(--accent)}.muted{color:var(--muted);line-height:1.6}h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em}h1{font-size:2.25rem}h2{font-size:1.75rem}h3{font-size:1.25rem}.nav{display:grid;gap:8px}.nav-button{border:1px solid transparent;background:transparent;color:var(--muted);text-align:left;padding:12px 16px;border-radius:12px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);font-weight:500;display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden}.shell.is-collapsed .nav-button{padding:12px;justify-content:center}.nav-icon{display:flex;align-items:center;justify-content:center;min-width:20px}.nav-button:hover{background:#ffffff0d;color:var(--ink);transform:translate(4px)}.nav-button.active{background:linear-gradient(135deg,#14b8a633,#0d94881a);color:var(--accent);border-color:#14b8a64d;box-shadow:0 4px 12px #14b8a61a}.badge-row{display:flex;gap:10px;flex-wrap:wrap}.badge{background:#14b8a61a;border:1px solid rgba(20,184,166,.2);color:var(--accent);padding:6px 14px;border-radius:999px;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;box-shadow:0 0 10px #14b8a61a}.hero-grid,.panel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:20px;padding:28px;box-shadow:var(--glass-shadow);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow),0 10px 30px #14b8a61a;border-color:#ffffff1a}.hero-card{min-height:280px;background:linear-gradient(135deg,#1e293bcc,#0f172ae6);position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at top right,rgba(20,184,166,.15),transparent 60%);pointer-events:none}.wide-card{grid-column:span 2}.stat-card h3,.card h3,.card h2{margin-top:0;margin-bottom:16px}.primary-button,.secondary-button{border:none;border-radius:12px;padding:12px 20px;cursor:pointer;font-weight:600;font-size:.95rem;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}.primary-button{background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:#fff;box-shadow:0 4px 14px #14b8a64d}.primary-button:hover{box-shadow:var(--accent-glow);transform:translateY(-2px)}.primary-button:active{transform:translateY(0)}.secondary-button{background:#ffffff0d;border:1px solid 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0;color:var(--accent);font-weight:500;font-size:.9rem}.checkout-box{margin-top:20px;padding:16px;border-radius:16px;background:linear-gradient(135deg,#14b8a61a,#0d94880d);border:1px solid rgba(20,184,166,.2);box-shadow:inset 0 2px 10px #0000001a}.checkout-link{color:var(--accent);font-weight:600;text-decoration:none;transition:color .2s ease}.checkout-link:hover{color:#5eead4;text-decoration:underline}.board{display:inline-block;padding:16px 16px 16px 36px;border-radius:4px;background-color:#fdfdfd;background-image:linear-gradient(90deg,transparent 24px,rgba(239,68,68,.3) 24px,rgba(239,68,68,.3) 26px,transparent 26px);box-shadow:0 15px 35px #00000080,inset 0 0 40px #00000008;position:relative}.board-row{display:flex}.board-cell{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;cursor:pointer;position:relative;transition:background-color .2s ease}.board-cell:hover{background:#0000000d}.board-cell:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:#3b82f666;z-index:1}.board-cell:after{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:#3b82f666;z-index:1}.board-cell .mark{z-index:2;position:relative;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:800;font-family:Comic Sans MS,cursive,sans-serif;animation:popIn .3s cubic-bezier(.175,.885,.32,1.275) forwards}@keyframes popIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.board-cell.player-one .mark{color:#ef4444;text-shadow:0 1px 3px rgba(239,68,68,.4)}.board-cell.player-two .mark{color:#3b82f6;text-shadow:0 1px 3px rgba(59,130,246,.4)}.board-cell.winning-cell .mark{color:#10b981;text-shadow:0 0 12px rgba(16,185,129,.8),0 0 24px rgba(16,185,129,.4);animation:winnerPulse 1s infinite alternate}@keyframes winnerPulse{0%{transform:scale(1);text-shadow:0 0 12px rgba(16,185,129,.6)}to{transform:scale(1.3);text-shadow:0 0 20px rgba(16,185,129,1),0 0 30px rgba(16,185,129,.6)}}.game-over-banner{background:linear-gradient(135deg,#14b8a626,#0d948833);border:1px solid rgba(20,184,166,.3);color:var(--accent);padding:16px 24px;border-radius:12px;margin-bottom:24px;text-align:center;animation:slideDown .4s cubic-bezier(.16,1,.3,1);box-shadow:0 8px 32px #14b8a61a}.game-over-banner h2{margin:0;font-size:1.5rem}@keyframes slideDown{0%{transform:translateY(-10px);opacity:0}to{transform:translateY(0);opacity:1}}.badge-red{background:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#ef4444;box-shadow:0 0 10px #ef44441a}.badge-blue{background:#3b82f61a;border:1px solid rgba(59,130,246,.2);color:#3b82f6;box-shadow:0 0 10px #3b82f61a}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0000001a}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#fff3}@media (max-width: 960px){.shell{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--line);padding:20px}.content{padding:24px}.hero-grid,.panel-grid{grid-template-columns:1fr}.wide-card{grid-column:span 1}}