/* ============================================================
 * Layout v2.0 — Page Layouts & Responsive Grid
 * ============================================================ */

/* ============================================================
 * Global Navigation
 * ============================================================ */
.navbar {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-navbar);
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(var(--glass-blur));
  border-block-end: var(--border-thin);
  display: flex;
  align-items: center;
  padding-inline: var(--space-4);
}

.navbar-content {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--accent-gold);
  text-decoration: none;
}

.navbar-logo img {
  width: 40px;
  height: 40px;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.navbar-user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.navbar-username {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.navbar-user-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ============================================================
 * Index / Landing Page
 * ============================================================ */
.hero {
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/img/bg-night.svg') center / cover no-repeat;
  opacity: 0.15;
  z-index: -1;
}

.hero-logo {
  width: 120px;
  height: 120px;
  margin-block-end: var(--space-6);
  filter: drop-shadow(0 0 20px rgba(212, 168, 67, 0.5));
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  color: var(--accent-gold);
  margin-block-end: var(--space-4);
  text-shadow: 0 0 20px rgba(212, 168, 67, 0.3);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  margin-block-end: var(--space-8);
  max-width: 600px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
  max-width: 400px;
}

@media (min-width: 640px) {
  .hero-cta {
    flex-direction: row;
  }
}

.features {
  padding: var(--space-16) var(--space-4);
  background: var(--bg-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: var(--max-width);
  margin-inline: auto;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  text-align: center;
  padding: var(--space-6);
}

.feature-card .icon {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-block-end: var(--space-4);
  color: var(--accent-gold);
}

.feature-card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-block-end: var(--space-2);
}

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

/* ============================================================
 * Auth Page
 * ============================================================ */
.auth-container {
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
}

.auth-card {
  width: 100%;
  max-width: 440px;
}

.auth-tabs {
  display: flex;
  gap: var(--space-2);
  margin-block-end: var(--space-6);
  border-block-end: var(--border-muted);
}

.auth-tab {
  flex: 1;
  padding: var(--space-3);
  background: none;
  border: none;
  border-block-end: 2px solid transparent;
  color: var(--text-muted);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab:hover {
  color: var(--text-primary);
}

.auth-tab.active {
  color: var(--accent-gold);
  border-block-end-color: var(--accent-gold);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-block: var(--space-6);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-muted);
}

/* ============================================================
 * Lobby Page
 * ============================================================ */
.lobby-container {
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  padding: var(--space-6) var(--space-4);
  max-width: var(--max-width);
  margin-inline: auto;
}

.lobby-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-block-end: var(--space-6);
  flex-wrap: wrap;
}

.lobby-title {
  font-size: var(--text-3xl);
  color: var(--accent-gold);
}

.lobby-actions {
  display: flex;
  gap: var(--space-3);
}

.lobby-quick-join {
  display: flex;
  gap: var(--space-2);
  margin-block-end: var(--space-6);
  max-width: 500px;
}

.lobby-quick-join input {
  flex: 1;
}

.rooms-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .rooms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .rooms-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
 * Room Page (Game)
 * ============================================================ */
.room-container {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--bg-deep);
}

.room-container.phase-night {
  background: linear-gradient(to bottom, #0a0e14, #1a1a2e);
}

.room-container.phase-day {
  background: linear-gradient(to bottom, #0a0e14, #2e1a0a);
}

.room-header {
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--bg-glass);
  backdrop-filter: blur(var(--glass-blur));
  border-block-end: var(--border-thin);
  z-index: var(--z-navbar);
}

.room-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.room-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.room-phase {
  position: absolute;
  inset-block-start: 80px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  z-index: var(--z-sticky);
}

.room-main {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding: var(--space-4);
  padding-block-start: 120px; /* Space for phase indicator */
  overflow: hidden;
}

@media (min-width: 1024px) {
  .room-main {
    grid-template-columns: var(--sidebar-width) 1fr;
  }
}

.room-sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .room-sidebar {
    display: block;
  }
}

.room-game-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
}

/* Seats Grid */
.seats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  max-width: 600px;
  width: 100%;
}

@media (min-width: 640px) {
  .seats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .seats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

/* Mobile: 9 seats = 5+4 or 3+3+3 */
.seats-grid.seats-9 {
  grid-template-rows: repeat(5, auto);
}

@media (min-width: 640px) {
  .seats-grid.seats-9 {
    grid-template-rows: repeat(3, auto);
  }
}

/* Chat Drawer for Mobile */
.room-chat-drawer {
  position: fixed;
  inset-block-end: 0;
  inset-inline: 0;
  height: 60vh;
  background: var(--bg-surface);
  border-block-start: var(--border-strong);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  z-index: var(--z-drawer);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.room-chat-drawer.active {
  transform: translateY(0);
}

@media (min-width: 1024px) {
  .room-chat-drawer {
    display: none;
  }
}

.room-chat-toggle {
  position: fixed;
  inset-block-end: 100px;
  inset-inline-start: var(--space-4);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--accent-gold);
  color: var(--text-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold);
  z-index: var(--z-sticky);
}

@media (min-width: 1024px) {
  .room-chat-toggle {
    display: none;
  }
}

/* ============================================================
 * Profile Page
 * ============================================================ */
.profile-container {
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  padding: var(--space-6) var(--space-4);
  max-width: var(--max-width);
  margin-inline: auto;
}

.profile-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-block-end: var(--space-8);
  text-align: center;
}

.profile-avatar {
  position: relative;
}

.profile-avatar-edit {
  position: absolute;
  inset-block-end: 0;
  inset-inline-end: 0;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--accent-gold);
  color: var(--text-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bg-deep);
  cursor: pointer;
}

.profile-name {
  font-size: var(--text-3xl);
  color: var(--accent-gold);
}

.profile-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-muted);
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-block-end: var(--space-8);
}

@media (min-width: 640px) {
  .profile-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.profile-section {
  margin-block-end: var(--space-8);
}

.profile-section-title {
  font-size: var(--text-2xl);
  color: var(--accent-gold);
  margin-block-end: var(--space-4);
}

/* ============================================================
 * Footer
 * ============================================================ */
.footer {
  padding: var(--space-8) var(--space-4);
  background: var(--bg-primary);
  border-block-start: var(--border-muted);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* ============================================================
 * Responsive Utilities
 * ============================================================ */
.mobile-only {
  display: block;
}

@media (min-width: 1024px) {
  .mobile-only {
    display: none;
  }
}

.desktop-only {
  display: none;
}

@media (min-width: 1024px) {
  .desktop-only {
    display: block;
  }
}

/* ============================================================
 * Safe Area (for notched devices)
 * ============================================================ */
@supports (padding: max(0px)) {
  .navbar,
  .room-header,
  .action-panel,
  .voice-controls {
    padding-inline-start: max(var(--space-4), env(safe-area-inset-right));
    padding-inline-end: max(var(--space-4), env(safe-area-inset-left));
  }

  .action-panel,
  .voice-controls {
    padding-block-end: max(var(--space-4), env(safe-area-inset-bottom));
  }
}