/* public/css/style.css */

/* ===============================================
   AGUSHA WORDS — Dark Neon Orange Theme
   =============================================== */

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #181818;
  --bg-card: #141414;
  --bg-elevated: #1a1a1a;
  --bg-input: #0f0f0f;
  --bg-hover: #1f1f1f;
  --border-primary: #222222;
  --border-secondary: #2a2a2a;
  --border-accent: rgba(255, 120, 30, 0.3);
  --text-primary: #e8e8e8;
  --text-secondary: #888888;
  --text-tertiary: #555555;
  --text-inverse: #0a0a0a;
  --accent: #ff6a00;
  --accent-light: #ff8c33;
  --accent-dim: rgba(255, 106, 0, 0.15);
  --accent-glow: rgba(255, 106, 0, 0.4);
  --accent-subtle: rgba(255, 106, 0, 0.08);
  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --sidebar-width: 260px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--bg-primary); color: var(--text-primary); overflow: hidden; height: 100vh; width: 100vw; }
a { color: var(--accent); text-decoration: none; }
input, textarea, button, select { font-family: inherit; font-size: inherit; outline: none; border: none; background: none; color: inherit; }
button { cursor: pointer; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-secondary); border-radius: 3px; }
::selection { background: var(--accent-dim); color: var(--accent-light); }
.hidden { display: none !important; }

/* ============ PAGES ============ */
.page { display: none; width: 100%; height: 100vh; position: absolute; top: 0; left: 0; }
.page.active { display: flex; }

/* ============ LANDING ============ */
.landing-container { width: 100%; min-height: 100vh; display: flex; flex-direction: column; align-items: center; position: relative; overflow-y: auto; overflow-x: hidden; }
.landing-glow { position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 600px; height: 600px; background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%); opacity: 0.3; pointer-events: none; animation: glowPulse 4s ease-in-out infinite; }
@keyframes glowPulse { 0%, 100% { opacity: 0.2; transform: translateX(-50%) scale(1); } 50% { opacity: 0.35; transform: translateX(-50%) scale(1.1); } }
.landing-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,106,0,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,106,0,0.03) 1px, transparent 1px); background-size: 60px 60px; pointer-events: none; }
.landing-nav { width: 100%; max-width: 1200px; padding: 24px 40px; display: flex; align-items: center; justify-content: space-between; z-index: 10; }
.nav-logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 36px; height: 36px; color: var(--accent); }
.logo-icon.small { width: 28px; height: 28px; }
.logo-text { font-size: 18px; font-weight: 700; letter-spacing: 2px; }
.nav-badge { font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); padding: 4px 12px; border: 1px solid var(--border-primary); border-radius: 20px; }
.landing-main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 40px; z-index: 10; max-width: 800px; }
.landing-badge { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 4px; color: var(--accent); margin-bottom: 16px; padding: 6px 16px; background: var(--accent-dim); border: 1px solid var(--accent); border-radius: 20px; display: inline-block; }
.landing-title { font-size: clamp(48px, 10vw, 96px); font-weight: 900; line-height: 0.95; letter-spacing: -2px; margin-bottom: 24px; }
.title-line { display: block; }
.title-line.accent { color: var(--accent); text-shadow: 0 0 60px var(--accent-glow); }
.landing-description { font-size: 16px; line-height: 1.7; color: var(--text-secondary); max-width: 500px; margin-bottom: 48px; }
.landing-features { display: flex; align-items: center; gap: 32px; margin-bottom: 48px; }
.feature-card { text-align: center; padding: 28px 24px; border-radius: var(--radius-lg); min-width: 160px; }
.feature-icon { width: 32px; height: 32px; color: var(--accent); margin: 0 auto 10px; }
.feature-icon svg { width: 100%; height: 100%; }
.feature-number { font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--accent); }
.feature-label { font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-tertiary); margin-top: 4px; }
.feature-divider { width: 1px; height: 40px; background: var(--border-primary); }
.glass { background: rgba(20,20,20,0.6); backdrop-filter: blur(12px); border: 1px solid var(--border-primary); }
.landing-cta { text-align: center; margin-bottom: 56px; }
.landing-cta-hint { font-size: 12px; color: var(--text-tertiary); margin-top: 12px; }
.landing-footer { padding: 24px 40px; text-align: center; font-size: 12px; color: var(--text-tertiary); z-index: 10; }
.landing-footer-sep { margin: 0 8px; }
.landing-decoration { position: absolute; bottom: 0; left: 0; right: 0; height: 200px; pointer-events: none; }
.deco-line { position: absolute; bottom: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--accent-dim), transparent); }
.deco-line-1 { width: 100%; bottom: 80px; opacity: 0.5; }
.deco-line-2 { width: 60%; left: 20%; bottom: 120px; opacity: 0.3; }
.deco-line-3 { width: 30%; left: 35%; bottom: 160px; opacity: 0.15; }

/* ============ BUTTONS ============ */
.btn-primary { display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; background: var(--accent); color: var(--text-inverse); font-size: 14px; font-weight: 600; letter-spacing: 0.5px; border-radius: var(--radius-md); transition: all var(--transition-normal); position: relative; overflow: hidden; }
.btn-primary:hover { background: var(--accent-light); box-shadow: 0 0 30px var(--accent-glow); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-large { padding: 16px 36px; font-size: 16px; }
.btn-icon { width: 20px; height: 20px; }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; background: var(--bg-tertiary); color: var(--text-secondary); border: 1px solid var(--border-primary); border-radius: var(--radius-md); font-size: 14px; font-weight: 600; transition: all var(--transition-fast); }
.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--accent); }

/* ============ SIDEBAR ============ */
.chat-layout { display: flex; width: 100%; height: 100vh; overflow: hidden; }
.sidebar { width: var(--sidebar-width); min-width: var(--sidebar-width); height: 100vh; background: var(--bg-secondary); border-right: 1px solid var(--border-primary); display: flex; flex-direction: column; transition: transform var(--transition-normal); z-index: 100; }
.sidebar-header { padding: 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-primary); }
.sidebar-logo { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; letter-spacing: 1.5px; }
.sidebar-nav { padding: 12px; display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar-nav-btn { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius-sm); color: var(--text-secondary); font-size: 13px; font-weight: 500; transition: all var(--transition-fast); width: 100%; }
.sidebar-nav-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.sidebar-nav-btn.active { background: var(--accent-dim); color: var(--accent); }
.sidebar-nav-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-footer { padding: 12px 16px; border-top: 1px solid var(--border-primary); display: flex; align-items: center; justify-content: space-between; }
.user-info { display: flex; align-items: center; gap: 10px; flex: 1; overflow: hidden; }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-secondary); object-fit: cover; }
.user-details { overflow: hidden; }
.user-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-credits { font-family: var(--font-mono); font-size: 11px; color: var(--accent); }
.btn-logout { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: var(--text-tertiary); transition: all var(--transition-fast); flex-shrink: 0; }
.btn-logout:hover { background: rgba(239,68,68,0.1); color: var(--error); }
.btn-logout svg { width: 18px; height: 18px; }
.btn-sidebar-toggle { display: none; position: fixed; top: 12px; left: 12px; z-index: 200; width: 40px; height: 40px; align-items: center; justify-content: center; background: var(--bg-secondary); border: 1px solid var(--border-primary); border-radius: var(--radius-sm); color: var(--text-secondary); }
.btn-sidebar-toggle svg { width: 20px; height: 20px; }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 90; }

/* Admin */
.admin-section { padding: 12px; border-top: 1px solid var(--border-primary); }
.admin-toggle-btn { width: 100%; display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--accent-dim); border: 1px solid var(--accent); border-radius: var(--radius-sm); color: var(--accent); font-size: 12px; font-weight: 600; letter-spacing: 1px; transition: all var(--transition-fast); }
.admin-toggle-btn:hover { background: var(--accent); color: var(--text-inverse); }
.admin-toggle-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ============ MAIN CONTENT ============ */
.chat-main { flex: 1; display: flex; flex-direction: column; height: 100vh; position: relative; overflow: hidden; }
.section { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }

/* ============ MENU ============ */
.menu-container { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 24px; max-width: 600px; margin: 0 auto; width: 100%; }
.menu-header { text-align: center; margin-bottom: 32px; }
.menu-icon { width: 56px; height: 56px; color: var(--accent); margin-bottom: 12px; opacity: 0.7; }
.menu-title { font-size: 28px; font-weight: 800; letter-spacing: 3px; margin-bottom: 4px; }
.menu-subtitle { font-size: 14px; color: var(--text-secondary); }
.menu-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; width: 100%; margin-bottom: 32px; }
.menu-stat { background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); padding: 14px 8px; text-align: center; }
.menu-stat-num { display: block; font-family: var(--font-mono); font-size: 20px; font-weight: 700; color: var(--accent); }
.menu-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-tertiary); margin-top: 2px; }
.menu-modes { display: flex; flex-direction: column; gap: 10px; width: 100%; }
.mode-card { display: flex; align-items: center; gap: 16px; padding: 18px 20px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-lg); cursor: pointer; transition: all var(--transition-fast); }
.mode-card:hover { border-color: var(--accent); background: var(--accent-subtle); transform: translateX(4px); }
.mode-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--accent-dim); border-radius: var(--radius-md); color: var(--accent); flex-shrink: 0; }
.mode-icon svg { width: 24px; height: 24px; }
.mode-info { flex: 1; }
.mode-name { font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.mode-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.4; }
.mode-arrow { width: 20px; height: 20px; color: var(--text-tertiary); flex-shrink: 0; }

/* ============ AI SETUP ============ */
.setup-container { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 24px; max-width: 500px; margin: 0 auto; width: 100%; }
.back-btn { display: flex; align-items: center; gap: 4px; color: var(--text-secondary); font-size: 13px; margin-bottom: 24px; align-self: flex-start; padding: 6px 10px; border-radius: var(--radius-sm); transition: all var(--transition-fast); }
.back-btn:hover { background: var(--bg-hover); color: var(--accent); }
.back-btn svg { width: 16px; height: 16px; }
.setup-title { font-size: 22px; font-weight: 700; margin-bottom: 28px; text-align: center; }
.setup-group { width: 100%; margin-bottom: 28px; }
.setup-label { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 2px; color: var(--text-tertiary); margin-bottom: 12px; text-transform: uppercase; }
.diff-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.diff-card { padding: 18px 12px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); text-align: center; cursor: pointer; transition: all var(--transition-fast); }
.diff-card:hover { border-color: var(--accent); }
.diff-card.selected { border-color: var(--accent); background: var(--accent-dim); }
.diff-icon { width: 28px; height: 28px; color: var(--text-secondary); margin: 0 auto 8px; }
.diff-card.selected .diff-icon { color: var(--accent); }
.diff-name { font-size: 14px; font-weight: 700; margin-bottom: 2px; }
.diff-desc { font-size: 11px; color: var(--text-tertiary); }
.time-btns { display: flex; gap: 8px; }
.time-btn { flex: 1; padding: 12px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-sm); font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--text-secondary); text-align: center; cursor: pointer; transition: all var(--transition-fast); display: flex; align-items: center; justify-content: center; gap: 4px; }
.time-btn:hover { border-color: var(--accent); color: var(--text-primary); }
.time-btn.selected { border-color: var(--accent); background: var(--accent-dim); color: var(--accent); }
.btn-start { width: 100%; justify-content: center; margin-top: 8px; }

/* ============ ONLINE LOBBY ============ */
.lobby-container { flex: 1; display: flex; flex-direction: column; padding: 24px; max-width: 700px; margin: 0 auto; width: 100%; }
.lobby-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.lobby-title { flex: 1; font-size: 20px; font-weight: 700; }
.lobby-refresh { margin-bottom: 12px; }
.refresh-btn { display: flex; align-items: center; gap: 6px; padding: 6px 12px; background: var(--bg-tertiary); border: 1px solid var(--border-primary); border-radius: var(--radius-sm); color: var(--text-secondary); font-size: 12px; transition: all var(--transition-fast); }
.refresh-btn:hover { color: var(--accent); border-color: var(--accent); }
.rooms-list { display: flex; flex-direction: column; gap: 8px; }
.rooms-empty { text-align: center; padding: 40px; color: var(--text-tertiary); font-size: 14px; }
.room-card { padding: 16px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); cursor: pointer; transition: all var(--transition-fast); }
.room-card:hover { border-color: var(--accent); background: var(--accent-subtle); }
.room-card-header { display: flex; justify-content: space-between; margin-bottom: 6px; }
.room-host { font-size: 14px; font-weight: 600; }
.room-status { font-family: var(--font-mono); font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--success); }
.room-status.playing { color: var(--warning); }
.room-meta { font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary); display: flex; gap: 6px; }

/* ============ WAITING ROOM ============ */
.waiting-container { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 40px; }
.waiting-spinner { margin-bottom: 20px; }
.spinner-icon { width: 48px; height: 48px; color: var(--accent); animation: spin 1.5s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.waiting-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.waiting-code { font-family: var(--font-mono); font-size: 24px; font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.waiting-settings { font-size: 13px; color: var(--text-tertiary); margin-bottom: 4px; }
.waiting-players { font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; }

/* ============ GAME ============ */
.game-container { flex: 1; display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.game-top-bar { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; background: var(--bg-secondary); border-bottom: 1px solid var(--border-primary); }
.game-player { display: flex; align-items: center; gap: 10px; }
.game-player.p2 { flex-direction: row-reverse; text-align: right; }
.game-player-avatar { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--border-secondary); object-fit: cover; }
.ai-avatar { display: flex; align-items: center; justify-content: center; background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.ai-avatar svg { width: 22px; height: 22px; }
.game-player-info { display: flex; flex-direction: column; }
.game-player-info.right { align-items: flex-end; }
.game-player-name { font-size: 14px; font-weight: 600; }
.game-player-words { font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary); }
.game-center { display: flex; flex-direction: column; align-items: center; }
.game-timer { font-family: var(--font-mono); font-size: 32px; font-weight: 700; color: var(--accent); line-height: 1; }
.game-timer.warning { color: var(--warning); }
.game-timer.danger { color: var(--error); animation: timerPulse 0.5s ease infinite; }
@keyframes timerPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.1); } }
.game-turn-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 1px; color: var(--text-tertiary); text-transform: uppercase; margin-top: 2px; }
.game-required { padding: 10px 24px; text-align: center; background: var(--accent-dim); border-bottom: 1px solid var(--border-accent); }
.req-label { font-size: 13px; color: var(--text-secondary); }
.req-letter { font-family: var(--font-mono); font-size: 22px; font-weight: 700; color: var(--accent); margin-left: 8px; text-shadow: 0 0 12px var(--accent-glow); }
.game-ai-thinking { padding: 10px 24px; text-align: center; display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--text-secondary); font-size: 13px; }
.thinking-dots { display: flex; gap: 4px; }
.thinking-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: dotPulse 1.4s ease-in-out infinite; }
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotPulse { 0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); } 40% { opacity: 1; transform: scale(1); } }

.game-words-chain { flex: 1; overflow-y: auto; padding: 16px 24px; display: flex; flex-direction: column; gap: 6px; }
.chain-empty { flex: 1; display: flex; align-items: center; justify-content: center; color: var(--text-tertiary); font-size: 14px; }
.chain-word { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: var(--radius-sm); animation: fadeIn 0.3s ease; }
.chain-word.player { background: var(--bg-card); border-left: 3px solid var(--accent); }
.chain-word.opponent { background: var(--bg-tertiary); border-left: 3px solid var(--text-tertiary); }
.chain-word-num { font-family: var(--font-mono); font-size: 10px; color: var(--text-tertiary); min-width: 20px; }
.chain-word-text { font-size: 15px; font-weight: 600; flex: 1; }
.chain-word-first { font-family: var(--font-mono); font-size: 11px; color: var(--success); font-weight: 700; }
.chain-word-last { font-family: var(--font-mono); font-size: 11px; color: var(--accent); font-weight: 700; }
.chain-word-flash { padding: 8px 14px; background: var(--accent-dim); border: 1px solid var(--accent); border-radius: var(--radius-sm); color: var(--accent); font-weight: 600; font-size: 14px; text-align: center; animation: flashIn 0.4s ease; }
@keyframes flashIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }

.game-input-area { padding: 16px 24px; border-top: 1px solid var(--border-primary); background: var(--bg-primary); }
.game-input-container { display: flex; gap: 10px; align-items: center; padding: 10px 14px; background: var(--bg-secondary); border: 1px solid var(--border-primary); border-radius: var(--radius-lg); transition: border-color var(--transition-fast); }
.game-input-container:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-subtle); }
.game-input { flex: 1; background: transparent; font-size: 15px; padding: 4px 0; }
.game-input::placeholder { color: var(--text-tertiary); }
.game-input:disabled { opacity: 0.5; }
.btn-send { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); background: var(--accent); color: var(--text-inverse); transition: all var(--transition-fast); flex-shrink: 0; }
.btn-send:hover:not(:disabled) { background: var(--accent-light); box-shadow: 0 0 20px var(--accent-glow); }
.btn-send:disabled { opacity: 0.3; cursor: not-allowed; }
.btn-send svg { width: 18px; height: 18px; }
.game-input-hint { font-size: 12px; margin-top: 6px; min-height: 18px; font-family: var(--font-mono); }
.game-input-footer { display: flex; justify-content: center; margin-top: 8px; }
.surrender-btn { display: flex; align-items: center; gap: 6px; padding: 6px 14px; color: var(--error); font-size: 12px; font-weight: 600; border-radius: var(--radius-sm); transition: all var(--transition-fast); }
.surrender-btn:hover { background: rgba(239,68,68,0.1); }

/* ============ GAME OVER ============ */
.gameover-container { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; text-align: center; }
.gameover-title { font-size: 48px; font-weight: 900; letter-spacing: 4px; margin-bottom: 8px; }
.gameover-title.win { color: var(--success); text-shadow: 0 0 40px rgba(34,197,94,0.4); }
.gameover-title.loss { color: var(--error); text-shadow: 0 0 40px rgba(239,68,68,0.4); }
.gameover-reason { font-size: 16px; color: var(--text-secondary); margin-bottom: 8px; }
.gameover-elo { font-family: var(--font-mono); font-size: 18px; font-weight: 700; color: var(--accent); margin-bottom: 32px; }
.gameover-stats { display: flex; gap: 24px; margin-bottom: 40px; }
.gameover-stat { text-align: center; }
.gameover-stat-num { display: block; font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--accent); }
.gameover-stat-label { font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 1px; }
.gameover-actions { display: flex; gap: 12px; }

/* ============ PRACTICE ============ */
.practice-container { flex: 1; display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.practice-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; border-bottom: 1px solid var(--border-primary); background: var(--bg-secondary); }
.practice-scores { display: flex; gap: 16px; }
.practice-score-item { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); }
.practice-score-item strong { color: var(--accent); }

/* ============ LEADERBOARD ============ */
.lb-container { flex: 1; padding: 24px; max-width: 700px; margin: 0 auto; width: 100%; }
.section-header-title { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; margin-bottom: 20px; color: var(--accent); letter-spacing: 1px; }
.lb-tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.lb-tab { padding: 8px 16px; font-size: 12px; font-weight: 600; letter-spacing: 1px; color: var(--text-secondary); border-bottom: 2px solid transparent; transition: all var(--transition-fast); }
.lb-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.lb-tab:hover { color: var(--accent); }
.lb-list { display: flex; flex-direction: column; gap: 6px; }
.lb-empty { text-align: center; padding: 40px; color: var(--text-tertiary); }
.lb-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); transition: all var(--transition-fast); }
.lb-item.me { border-color: var(--accent); background: var(--accent-subtle); }
.lb-item:hover { border-color: var(--border-secondary); }
.lb-rank { font-family: var(--font-mono); font-size: 14px; font-weight: 700; color: var(--text-tertiary); min-width: 36px; }
.lb-rank.top-1 { color: #fbbf24; }
.lb-rank.top-2 { color: #9ca3af; }
.lb-rank.top-3 { color: #cd7f32; }
.lb-avatar { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border-secondary); object-fit: cover; }
.lb-info { flex: 1; min-width: 0; }
.lb-name { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lb-stats { font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary); }
.lb-value { font-family: var(--font-mono); font-size: 18px; font-weight: 700; color: var(--accent); flex-shrink: 0; }

/* ============ ACHIEVEMENTS ============ */
.ach-container { flex: 1; padding: 24px; max-width: 700px; margin: 0 auto; width: 100%; }
.ach-progress { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; }
.ach-progress span { color: var(--accent); font-weight: 700; }
.ach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.ach-card { padding: 18px 16px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); text-align: center; transition: all var(--transition-fast); }
.ach-card.unlocked { border-color: var(--accent); background: var(--accent-subtle); }
.ach-card.locked { opacity: 0.4; }
.ach-icon { font-size: 28px; margin-bottom: 8px; display: flex; align-items: center; justify-content: center; }
.ach-name { font-size: 13px; font-weight: 700; margin-bottom: 4px; }
.ach-desc { font-size: 11px; color: var(--text-tertiary); line-height: 1.4; }

/* Achievement SVG icons rendered inline */
.ach-card .ach-icon svg { width: 28px; height: 28px; color: var(--text-tertiary); }
.ach-card.unlocked .ach-icon svg { color: var(--accent); }

/* ============ PROFILE ============ */
.profile-container { flex: 1; padding: 24px; max-width: 600px; margin: 0 auto; width: 100%; }
.profile-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.profile-avatar { width: 64px; height: 64px; border-radius: 50%; border: 2px solid var(--accent); object-fit: cover; }
.profile-name { font-size: 22px; font-weight: 700; }
.profile-elo-badge { font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--accent); }
.profile-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 28px; }
.profile-stat-card { background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); padding: 14px; text-align: center; }
.profile-stat-num { display: block; font-family: var(--font-mono); font-size: 20px; font-weight: 700; color: var(--accent); }
.profile-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-tertiary); margin-top: 2px; }
.profile-games-title { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 2px; color: var(--text-tertiary); margin-bottom: 12px; text-transform: uppercase; }
.profile-games { display: flex; flex-direction: column; gap: 6px; }
.profile-game-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-sm); }
.profile-game-type { font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--text-secondary); letter-spacing: 1px; }
.profile-game-words { font-size: 13px; color: var(--text-primary); }
.profile-game-result { font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: 1px; padding: 2px 8px; border-radius: 3px; }
.profile-game-result.win { background: rgba(34,197,94,0.15); color: var(--success); }
.profile-game-result.loss { background: rgba(239,68,68,0.15); color: var(--error); }
.profile-game-result.active { background: rgba(245,158,11,0.15); color: var(--warning); }

/* ============ ADMIN ============ */
.admin-container { flex: 1; padding: 24px; max-width: 700px; margin: 0 auto; width: 100%; }
.admin-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 28px; }
.admin-stat-card { background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-md); padding: 14px; text-align: center; }
.admin-stat-num { display: block; font-family: var(--font-mono); font-size: 20px; font-weight: 700; color: var(--accent); }
.admin-stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-tertiary); margin-top: 2px; }
.admin-users-title { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 2px; color: var(--text-tertiary); margin-bottom: 12px; text-transform: uppercase; }
.admin-users-list { display: flex; flex-direction: column; gap: 6px; }
.admin-user-row { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-sm); }
.admin-user-row img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.admin-user-name { flex: 1; font-size: 13px; font-weight: 600; }
.admin-user-elo { font-family: var(--font-mono); font-size: 12px; color: var(--accent); }
.admin-ban-btn { padding: 4px 10px; border-radius: 4px; font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: 1px; transition: all var(--transition-fast); }
.admin-ban-btn.ban { background: rgba(239,68,68,0.15); color: var(--error); border: 1px solid var(--error); }
.admin-ban-btn.ban:hover { background: var(--error); color: white; }
.admin-ban-btn.unban { background: rgba(34,197,94,0.15); color: var(--success); border: 1px solid var(--success); }
.admin-ban-btn.unban:hover { background: var(--success); color: white; }

/* ============ MODAL ============ */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 9999; display: flex; align-items: center; justify-content: center; }
.modal-card { background: var(--bg-card); border: 1px solid var(--border-primary); border-radius: var(--radius-lg); padding: 36px 32px; max-width: 380px; width: 90%; text-align: center; animation: slideUp 0.25s ease; box-shadow: 0 24px 80px rgba(0,0,0,0.6); }
.modal-icon { width: 48px; height: 48px; color: var(--warning); margin: 0 auto 16px; }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.modal-subtitle { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 28px; }
.modal-actions { display: flex; gap: 12px; justify-content: center; }
.modal-btn { padding: 10px 24px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; transition: all var(--transition-fast); }
.modal-btn-cancel { background: var(--bg-tertiary); border: 1px solid var(--border-primary); color: var(--text-secondary); }
.modal-btn-cancel:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-btn-confirm { background: var(--error); color: #fff; display: inline-flex; align-items: center; justify-content: center; }
.modal-btn-confirm:hover { background: #dc2626; box-shadow: 0 0 20px rgba(239,68,68,0.4); }

/* ============ TOAST ============ */
.toast { position: fixed; bottom: 24px; right: 24px; padding: 12px 20px; background: var(--bg-elevated); border: 1px solid var(--border-primary); border-radius: var(--radius-md); font-size: 13px; z-index: 9999; animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards; box-shadow: 0 8px 30px rgba(0,0,0,0.4); }
.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--error); }
@keyframes toastIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; transform: translateY(20px); } }

/* ============ ANIMATIONS ============ */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .sidebar { position: fixed; left: 0; top: 0; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.active { display: block; }
  .btn-sidebar-toggle { display: flex; }
  .landing-features { flex-direction: column; gap: 16px; }
  .feature-divider { width: 40px; height: 1px; }
  .menu-stats { grid-template-columns: repeat(2, 1fr); }
  .diff-cards { grid-template-columns: 1fr; }
  .time-btns { flex-wrap: wrap; }
  .game-top-bar { padding: 10px 16px; }
  .game-timer { font-size: 24px; }
  .gameover-title { font-size: 36px; }
  .profile-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ach-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}

#page-landing { overflow-y: auto !important; overflow-x: hidden; }
#page-landing.active { display: block !important; }