*{margin:0;padding:0;box-sizing:border-box}:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-secondary: #ec4899;--color-accent: #14b8a6;--color-success: #22c55e;--color-warning: #f59e0b;--color-bg: #0f172a;--color-bg-light: #1e293b;--color-surface: #1e293b;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--shadow-glow: 0 0 40px rgba(99, 102, 241, .15)}body{font-family:Poppins,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100vh}.app{position:relative;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:32px 16px 60px;overflow-x:hidden}.app__background{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;background:radial-gradient(circle at 15% 20%,rgba(99,102,241,.15),transparent 40%),radial-gradient(circle at 85% 15%,rgba(236,72,153,.12),transparent 40%),radial-gradient(circle at 50% 90%,rgba(20,184,166,.1),transparent 45%)}.header{text-align:center;margin-bottom:24px}.header__logo{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--color-primary)}.header__logo h1{font-size:32px;font-weight:800;background:linear-gradient(135deg,#6366f1,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header__subtitle{color:var(--color-text-muted);font-size:14px;margin-top:6px}.difficulty-selector{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;justify-content:center}.difficulty-btn{padding:8px 18px;border-radius:999px;border:1px solid rgba(148,163,184,.2);background:#1e293b99;color:var(--color-text-muted);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s ease}.difficulty-btn:hover{border-color:var(--color-primary);color:var(--color-text)}.difficulty-btn--active{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));border-color:transparent;color:#fff;box-shadow:0 4px 14px #6366f166}.stats-bar{display:flex;align-items:center;gap:20px;background:#1e293bb3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(148,163,184,.15);border-radius:16px;padding:14px 22px;margin-bottom:28px;flex-wrap:wrap;justify-content:center;box-shadow:var(--shadow-glow)}.stat{display:flex;align-items:center;gap:8px;color:var(--color-primary)}.stat__content{display:flex;flex-direction:column;line-height:1.2}.stat__label{font-size:11px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.5px}.stat__value{font-size:15px;font-weight:700;color:var(--color-text)}.btn{display:flex;align-items:center;gap:6px;border:none;border-radius:10px;padding:10px 18px;font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s ease}.btn--restart{background:#6366f126;color:var(--color-primary);border:1px solid rgba(99,102,241,.3)}.btn--restart:hover{background:#6366f140}.btn--primary{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff;justify-content:center;width:100%;padding:14px;font-size:15px;box-shadow:0 4px 20px #6366f166}.btn--primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px #6366f180}.game-board{display:grid;gap:14px;max-width:680px;width:100%;perspective:1000px}.card{aspect-ratio:1;border:none;background:transparent;cursor:pointer;padding:0;border-radius:14px}.card:disabled{cursor:default}.card__inner{position:relative;width:100%;height:100%;transition:transform .5s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d;border-radius:14px}.card__inner--flipped{transform:rotateY(180deg)}.card__face{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;border-radius:14px;backface-visibility:hidden}.card__face--back{background:linear-gradient(135deg,#312e81,#1e1b4b);border:1px solid rgba(99,102,241,.3);box-shadow:inset 0 0 20px #6366f133}.card__pattern{font-size:28px;font-weight:800;color:#6366f180}.card__face--front{background:linear-gradient(135deg,#1e293b,#334155);border:1px solid rgba(148,163,184,.2);transform:rotateY(180deg)}.card__symbol{font-size:clamp(24px,5vw,40px)}.card--matched .card__face--front{background:linear-gradient(135deg,#22c55e33,#14b8a633);border-color:#22c55e66;box-shadow:0 0 20px #22c55e40}.card:hover:not(:disabled) .card__face--back{border-color:#6366f199;transform:scale(1.03)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172ad9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:50;animation:fadeIn .3s ease;padding:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{position:relative;background:var(--color-surface);border:1px solid rgba(148,163,184,.2);border-radius:20px;padding:36px 32px;max-width:360px;width:100%;text-align:center;box-shadow:0 20px 60px #00000080;animation:slideUp .4s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal__close{position:absolute;top:16px;right:16px;background:transparent;border:none;color:var(--color-text-muted);cursor:pointer;padding:4px}.modal__icon{color:var(--color-warning);display:flex;justify-content:center;margin-bottom:12px}.modal__title{font-size:24px;font-weight:800;margin-bottom:8px}.modal__badge{display:inline-block;background:#22c55e26;color:var(--color-success);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:16px}.modal__stats{display:flex;gap:16px;margin-bottom:24px}.modal__stat{flex:1;background:#94a3b814;border-radius:12px;padding:14px}.modal__stat-label{display:block;font-size:11px;color:var(--color-text-muted);text-transform:uppercase;margin-bottom:4px}.modal__stat-value{font-size:22px;font-weight:800;color:var(--color-primary)}.footer{margin-top:32px;color:var(--color-text-muted);font-size:13px;text-align:center}@media (max-width: 480px){.stats-bar{gap:12px;padding:12px 16px}.stat__value{font-size:13px}.game-board{gap:8px}}