/* ==========================================================================
   술 게임 오락실 — main.css
   Mobile-first design system. Base width: 375px.
   ========================================================================== */

/* ----------- 1. Design Tokens (CSS Custom Properties) -------------------- */
:root {
  /* Brand */
  --color-primary: #FF6B6B;
  --color-primary-dark: #E85A5A;
  --color-secondary: #4ECDC4;
  --color-accent: #FFE66D;
  --color-accent-dark: #E6CE5E;

  /* Surfaces */
  --color-bg: #1A1A2E;
  --color-bg-2: #11111E;
  --color-surface: #16213E;
  --color-surface-2: #1F2C56;
  --color-surface-3: #2A3868;

  /* Text */
  --color-text: #EAEAEA;
  --color-text-muted: #9CA3BD;
  --color-text-dim: #6B7390;

  /* States */
  --color-success: #4ECDC4;
  --color-warn: #FFB454;
  --color-danger: #FF6B6B;
  --color-info: #6E92FF;

  /* Layout */
  --radius-card: 16px;
  --radius-pill: 999px;
  --radius-input: 12px;
  --radius-btn: 14px;

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.30);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.20);

  /* Motion */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* Touch */
  --touch-min: 44px;

  /* Z-layers */
  --z-screen: 1;
  --z-bottom-nav: 50;
  --z-floating: 60;
  --z-side-panel: 70;
  --z-overlay: 80;
  --z-toast: 90;
  --z-modal: 100;

  /* Safe areas */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* ----------- 2. Reset & Base --------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display",
               "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR",
               "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

img, svg { display: block; max-width: 100%; }

button {
  font-family: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  user-select: none;
}

input, textarea, select {
  font-family: inherit;
  color: inherit;
  -webkit-appearance: none;
  appearance: none;
}

input::placeholder { color: var(--color-text-dim); }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }

.muted { color: var(--color-text-muted); }

/* ----------- 3. App shell layout ---------------------------------------- */
.app-shell {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--color-bg);
}

.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  width: 100%;
  height: 100vh; /* fallback for older browsers */
  height: 100dvh;
  background: var(--color-bg);
  overflow: hidden;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}

.screen.screen--active {
  display: flex !important;
}

/* Constrain layout on wide screens (tablet/desktop fallback) */
@media (min-width: 768px) {
  .screen {
    max-width: 480px;
    margin: 0 auto;
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
  }
  .app-shell {
    background: linear-gradient(135deg, #0c0c1a, #1A1A2E);
  }
}

/* ----------- 4. Screen header / footer ---------------------------------- */
.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  min-height: 56px;
  background: var(--color-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
}

.screen-header--home {
  justify-content: flex-end;
  border-bottom: none;
  background: transparent;
}

.screen-title {
  flex: 1;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header-spacer {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.round-info {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  min-width: 56px;
  text-align: right;
}

.screen-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-5) var(--space-4) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.screen-body--centered {
  justify-content: center;
  align-items: stretch;
  text-align: center;
  padding-top: var(--space-6);
  position: relative; /* anchor for result-confetti */
}

.screen-body--lobby {
  padding-bottom: 120px; /* leave room for fixed footer */
}

.screen-footer {
  flex-shrink: 0;
  padding: var(--space-3) var(--space-4) var(--space-4);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.screen-footer--actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.4));
}

.screen-footer--lobby {
  background: linear-gradient(180deg, rgba(26, 26, 46, 0.0), rgba(26, 26, 46, 0.95) 30%);
}

/* ----------- 5. Buttons -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-btn);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  background: var(--color-surface-2);
  color: var(--color-text);
  transition: transform var(--transition), background var(--transition), opacity var(--transition);
  border: 1px solid transparent;
}

.btn:active {
  transform: scale(0.97);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.35);
}

.btn--primary:hover { background: linear-gradient(135deg, #ff7e7e, var(--color-primary)); }

.btn--secondary {
  background: linear-gradient(135deg, var(--color-secondary), #3aa39c);
  border: 1px solid transparent;
  color: #06241f;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(78, 205, 196, 0.30);
}

.btn--secondary:hover { background: linear-gradient(135deg, #5fd6cd, var(--color-secondary)); }

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #1A1A2E;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(255, 230, 109, 0.35);
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--color-surface-3);
  color: var(--color-text);
}

.btn--xl {
  min-height: 56px;
  font-size: 1.05rem;
  padding: var(--space-4) var(--space-6);
}

.btn--block {
  width: 100%;
}

.btn-icon { font-size: 1.3rem; line-height: 1; }
.btn-label { line-height: 1; }

/* Icon button (44×44 minimum) */
.icon-btn {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-size: 1.25rem;
  background: transparent;
  color: var(--color-text);
  transition: background var(--transition), transform var(--transition);
}

.icon-btn:hover { background: rgba(255, 255, 255, 0.05); }
.icon-btn:active { transform: scale(0.92); background: rgba(255, 255, 255, 0.08); }

.icon-btn--corner {
  position: relative;
  z-index: 2;
}

.back-btn {
  font-size: 1.5rem;
}

/* ----------- 6. Floating buttons ---------------------------------------- */
.floating-btn {
  position: fixed;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  background: rgba(15, 20, 40, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: var(--z-floating);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-text);
  transition: transform var(--transition), background var(--transition);
}

.floating-btn:active { transform: scale(0.92); }

.floating-btn--audio {
  top: calc(var(--safe-top) + var(--space-3));
  right: var(--space-3);
}

.audio-icon[data-state="off"] { opacity: 0.45; }

/* ----------- 7. Forms ---------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group--top-margin { margin-top: var(--space-4); }

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: -0.01em;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.input {
  width: 100%;
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-input);
  color: var(--color-text);
  font-size: 16px; /* min 16px to prevent iOS zoom on focus */
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.input:focus {
  border-color: var(--color-primary);
  background: var(--color-surface-2);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.18);
}

.input--code {
  text-align: center;
  font-size: 2rem;
  letter-spacing: 0.3em;
  font-weight: 700;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  padding: var(--space-4);
}

/* Stepper */
.stepper {
  display: inline-flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-pill);
  padding: var(--space-1);
  gap: var(--space-2);
  align-self: flex-start;
}

.stepper-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--color-surface-2);
  color: var(--color-text);
}

.stepper-btn:active { background: var(--color-surface-3); }

.stepper-btn:disabled,
.stepper-btn.is-disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.stepper-btn:disabled:active,
.stepper-btn.is-disabled:active { background: var(--color-surface-2); transform: none; }

.stepper-value {
  min-width: 48px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
}

/* OR divider */
.or-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-3) 0;
  color: var(--color-text-dim);
  font-size: 0.85rem;
}

.or-divider::before,
.or-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-surface-3);
}

/* Slider */
.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 6px;
  background: var(--color-surface-2);
  outline: none;
  margin: var(--space-2) 0;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 107, 107, 0.4);
}

.slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
}

/* Toggle switch */
.switch {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 30px;
  flex-shrink: 0;
}

.switch input { display: none; }

.switch-track {
  position: absolute;
  inset: 0;
  background: var(--color-surface-3);
  border-radius: 999px;
  transition: background var(--transition);
}

.switch-track::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background: var(--color-text);
  border-radius: 50%;
  transition: transform var(--transition);
}

.switch input:checked + .switch-track {
  background: var(--color-primary);
}

.switch input:checked + .switch-track::before {
  transform: translateX(22px);
}

/* Emoji picker grid */
.emoji-picker {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-2);
}

.emoji-option {
  width: 100%;
  aspect-ratio: 1;
  font-size: 1.6rem;
  background: var(--color-surface);
  border: 2px solid transparent;
  border-radius: var(--radius-input);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  min-height: var(--touch-min);
}

.emoji-option:active { transform: scale(0.92); }

.emoji-option:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.emoji-option.is-selected {
  border-color: var(--color-primary);
  background: var(--color-surface-2);
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.15);
}

/* ----------- 8. Splash --------------------------------------------------- */
.splash-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(ellipse at center, var(--color-surface) 0%, var(--color-bg) 70%);
}

#screen-splash.is-leaving {
  animation: fade-out 0.35s ease-in forwards;
}

.splash-logo {
  font-size: 5rem;
  filter: drop-shadow(0 4px 20px rgba(255, 107, 107, 0.5));
  animation: bounce 1.4s ease-in-out infinite;
}

.splash-title {
  margin-top: var(--space-4);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.splash-subtitle {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
}

.splash-loader {
  margin-top: var(--space-8);
  width: 200px;
  height: 4px;
  background: var(--color-surface-2);
  border-radius: 4px;
  overflow: hidden;
}

.loader-bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 4px;
  transform-origin: left center;
  animation: loader-fill 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes loader-fill {
  0%   { transform: scaleX(0); }
  60%  { transform: scaleX(1); }
  100% { transform: scaleX(1); opacity: 0; }
}

/* ----------- 9. Home ----------------------------------------------------- */
.home-hero {
  padding: var(--space-6) 0 var(--space-4);
  text-align: center;
}

.home-hero__emoji {
  font-size: 4rem;
  margin-bottom: var(--space-3);
  filter: drop-shadow(0 4px 16px rgba(78, 205, 196, 0.35));
}

.home-title {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.home-tagline {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.home-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-8);
  width: 100%;
}

.home-actions .btn { width: 100%; }

.home-features {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.feature-pill {
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ----------- 10. Lobby - Room code card --------------------------------- */
.room-code-card {
  background: linear-gradient(135deg, var(--color-surface), var(--color-surface-2));
  border-radius: var(--radius-card);
  padding: var(--space-5);
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.room-code-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-2);
}

.room-code-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.room-code-row .icon-btn {
  background: rgba(255, 230, 109, 0.12);
  color: var(--color-accent);
}

.room-code-row .icon-btn:active {
  background: rgba(255, 230, 109, 0.24);
}

.room-code-display {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  color: var(--color-accent);
  line-height: 1.1;
  word-break: keep-all;
}

.qr-toggle {
  margin-top: var(--space-3);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  min-height: 36px;
}

.qr-wrapper {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.qr-canvas {
  background: #fff;
  padding: var(--space-3);
  border-radius: var(--radius-input);
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.qr-canvas img,
.qr-canvas canvas {
  max-width: 100%;
  height: auto;
}

.qr-hint {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ----------- 11. Lobby - Sections --------------------------------------- */
.lobby-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.lobby-section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Player list */
.player-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.player-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-surface-2);
  border-radius: var(--radius-card);
  min-height: 64px;
  transition: border-color var(--transition), background var(--transition);
}

.player-item.is-self {
  border-color: var(--color-primary);
  background: linear-gradient(90deg, var(--color-surface-2), var(--color-surface));
  box-shadow: 0 0 0 1px rgba(255, 107, 107, 0.25);
}

.player-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.player-info {
  flex: 1;
  min-width: 0;
}

.player-name {
  font-weight: 700;
  font-size: 0.98rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.player-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: 2px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.player-host-badge {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #1A1A2E;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(255, 230, 109, 0.25);
}

.player-drinks {
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.player-ready {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.player-ready.is-ready {
  background: rgba(78, 205, 196, 0.18);
  color: var(--color-secondary);
  border: 1px solid rgba(78, 205, 196, 0.4);
}

.player-ready.is-not-ready {
  background: rgba(156, 163, 189, 0.12);
  color: var(--color-text-muted);
  border: 1px solid rgba(156, 163, 189, 0.25);
}

/* ----------- 12. Game card grid ----------------------------------------- */
.game-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.game-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface);
  border: 2px solid transparent;
  border-radius: var(--radius-card);
  text-align: center;
  min-height: 120px;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.game-card:active {
  transform: scale(0.96);
  background: var(--color-surface-2);
}

.game-card.is-selected {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-surface));
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.20);
}

.game-card__icon {
  font-size: 2.5rem;
  line-height: 1;
}

.game-card__name {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.game-card__desc {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* ----------- 13. Settings panel (collapsible) --------------------------- */
.settings-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-input);
  font-size: 0.9rem;
  font-weight: 600;
  min-height: var(--touch-min);
}

.settings-toggle .chevron {
  transition: transform var(--transition);
}

.settings-toggle[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
}

.settings-panel {
  background: var(--color-surface);
  border-radius: var(--radius-input);
  padding: var(--space-2) var(--space-4);
  margin-top: var(--space-2);
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.setting-row:last-child { border-bottom: none; }

/* Settings screen */
.settings-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--color-surface);
  padding: var(--space-4);
  border-radius: var(--radius-card);
}

.settings-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.about-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 0.88rem;
}

/* ----------- 14. Game screen --------------------------------------------- */
.game-content {
  flex: 1 1 auto;
  min-height: 0; /* allow flex child to shrink for scrolling */
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-4);
  background: radial-gradient(ellipse at top, var(--color-surface) 0%, var(--color-bg) 60%);
}

.quick-status {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex-shrink: 0;
  min-height: 60px;
  align-items: center;
}

.quick-status::-webkit-scrollbar { display: none; }

.quick-status__item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  flex-shrink: 0;
  min-height: 32px;
  white-space: nowrap;
}

.quick-status__avatar {
  font-size: 1.1rem;
}

.quick-status__name {
  color: var(--color-text);
  font-weight: 600;
  max-width: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.quick-status__count {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.8rem;
}

/* ----------- 15. Result screen ------------------------------------------ */
.result-card {
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-surface));
  border-radius: var(--radius-card);
  padding: var(--space-8) var(--space-5);
  box-shadow: var(--shadow-elevated);
  text-align: center;
  margin: var(--space-4) 0;
}

.result-emoji {
  font-size: 5rem;
  filter: drop-shadow(0 4px 16px rgba(255, 107, 107, 0.4));
  animation: pulse 1.4s ease-in-out infinite;
}

.result-drinker {
  margin-top: var(--space-4);
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  word-break: keep-all;
  line-height: 1.15;
}

.result-detail {
  margin-top: var(--space-2);
  font-size: 0.95rem;
}

.result-drink-count {
  margin-top: var(--space-4);
  font-size: 1.15rem;
  color: var(--color-accent);
  font-weight: 800;
}

.result-confetti {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

/* ----------- 16. Bottom navigation -------------------------------------- */
.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(22, 33, 62, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  z-index: var(--z-bottom-nav);
  padding-bottom: var(--safe-bottom);
}

@media (min-width: 768px) {
  .bottom-nav {
    max-width: 480px;
    left: 50%;
    transform: translateX(-50%);
  }
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--space-2);
  min-height: 56px;
  color: var(--color-text-muted);
  font-size: 0.7rem;
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.bottom-nav__item.is-active {
  color: var(--color-primary);
}

.bottom-nav__item.is-active .bn-icon {
  font-size: 1.55rem;
  transform: translateY(-2px);
  filter: drop-shadow(0 2px 6px rgba(255, 107, 107, 0.45));
}

.bottom-nav__item.is-active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--color-primary);
}

.bottom-nav__item:active {
  background: rgba(255, 255, 255, 0.04);
}

.bn-icon {
  font-size: 1.3rem;
  line-height: 1;
  transition: transform var(--transition), font-size var(--transition);
}
.bn-label { font-weight: 600; }

/* ----------- 17. Toasts ------------------------------------------------- */
.toast-container {
  position: fixed;
  top: calc(var(--safe-top) + 60px); /* below floating audio button */
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  pointer-events: none;
  width: 100%;
  max-width: 90vw;
  padding: 0 var(--space-3);
}

.toast {
  pointer-events: auto;
  background: var(--color-surface-2);
  border: 1px solid var(--color-surface-3);
  border-radius: var(--radius-pill);
  padding: var(--space-3) var(--space-5);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  box-shadow: var(--shadow-elevated);
  max-width: 100%;
  text-align: center;
  word-break: keep-all;
}

.toast--success {
  background: linear-gradient(135deg, rgba(78, 205, 196, 0.95), rgba(50, 170, 160, 0.95));
  border-color: var(--color-success);
  color: #0d2624;
}
.toast--error {
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.95), rgba(220, 80, 80, 0.95));
  border-color: var(--color-danger);
  color: #fff;
}
.toast--warn {
  background: linear-gradient(135deg, rgba(255, 180, 84, 0.95), rgba(230, 150, 60, 0.95));
  border-color: var(--color-warn);
  color: #2a1a08;
}
.toast--info {
  background: linear-gradient(135deg, rgba(110, 146, 255, 0.95), rgba(80, 110, 220, 0.95));
  border-color: var(--color-info);
  color: #fff;
}

/* ----------- 18. Loading overlay & spinner ------------------------------ */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-direction: column;
  /* display toggled to flex by JS */
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-surface-3);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-message {
  font-size: 0.95rem;
  color: var(--color-text);
  text-align: center;
  padding: 0 var(--space-5);
  word-break: keep-all;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ----------- 19. Modal -------------------------------------------------- */
.modal-root {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  /* display toggled to flex by JS */
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 320px;
  max-height: calc(100vh - var(--space-8));
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: var(--space-5);
  box-shadow: var(--shadow-elevated);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  overflow: hidden;
}

@media (min-width: 600px) {
  .modal-card { max-width: 420px; }
}

.modal-card--large {
  max-height: calc(100vh - var(--space-6));
  height: 85%;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-content {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  font-size: 0.95rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  flex-direction: column-reverse; /* primary (last in DOM) is rendered on top */
  gap: var(--space-2);
}

.modal-actions .btn {
  width: 100%;
  min-height: var(--touch-min);
}

/* History list */
.history-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-input);
}

.history-item__game {
  font-weight: 700;
  font-size: 0.9rem;
}

.history-item__detail {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.history-item__time {
  font-size: 0.72rem;
  color: var(--color-text-dim);
}

.history-empty {
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ----------- 20. Drink tracker side panel ------------------------------- */
.drink-tracker {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(85vw, 320px);
  background: var(--color-surface);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  z-index: var(--z-side-panel);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}

.drink-tracker.is-open {
  transform: translateX(0);
}

.drink-tracker__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 56px;
}

.drink-tracker__header h3 {
  font-size: 1rem;
}

.drink-tracker__list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.drink-tracker__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-input);
  min-height: 56px;
}

.drink-tracker__item .player-name {
  flex: 1;
  min-width: 0;
}

.drink-tracker__count {
  margin-left: auto;
  font-weight: 800;
  color: var(--color-accent);
  font-size: 1.1rem;
  min-width: 30px;
  text-align: right;
}

.drink-tracker__count.bump {
  animation: count-bump 0.4s ease;
}

.drink-tracker__footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

.drink-tracker__footer strong {
  color: var(--color-accent);
  font-size: 1rem;
}

.side-panel-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-side-panel) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.side-panel-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ----------- 21. Drink animation overlay -------------------------------- */
.drink-animation-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: none;
  /* display toggled to flex by JS */
}

.drink-animation-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  word-break: keep-all;
  padding: 0 var(--space-5);
  animation: drink-pop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.drink-anim-emoji {
  font-size: 4.5rem;
  line-height: 1;
  filter: drop-shadow(0 4px 12px rgba(255, 107, 107, 0.6));
}

.drink-anim-name {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--color-accent);
  text-shadow: 0 4px 24px rgba(255, 230, 109, 0.6);
  line-height: 1.1;
}

.drink-anim-label {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

/* ----------- 22. Utilities ---------------------------------------------- */
.is-hidden { display: none !important; }
.is-disabled { opacity: 0.4; pointer-events: none; }

/* Hide scrollbar utility */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { scrollbar-width: none; }