/**
 * Florida Predictor — Layout v3.0
 * Sidebar + Main Content + Responsive Grid
 */

/* ============================================================================
   SKIP LINK
   ============================================================================ */

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-2);
  z-index: 999;
  padding: var(--space-3) var(--space-6);
  background: var(--fp-primary);
  color: var(--text-inverse);
  font-weight: 700;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.skip-link:focus {
  left: var(--space-4);
}

/* ============================================================================
   BODY LAYOUT — Sidebar + Main
   ============================================================================ */

body {
  display: flex;
  min-height: 100vh;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: var(--z-sidebar);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform 0.3s var(--ease-smooth);
}

/* Scrollbar */
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-full);
}

/* --- Header --- */
.sidebar-header {
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 168, 255, 0.3);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.logo-accent {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--fp-secondary);
  letter-spacing: -0.02em;
}

.logo-version {
  font-size: 0.625rem;
  color: var(--sidebar-text-dim);
  background: rgba(255,255,255,0.06);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
  letter-spacing: 0.5px;
  align-self: flex-start;
  margin-top: 2px;
}

.sidebar-close {
  display: none; /* visible on mobile */
  color: var(--sidebar-text-dim);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.sidebar-close:hover {
  color: white;
  background: rgba(255,255,255,0.08);
}

/* --- Navigation --- */
.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  color: var(--sidebar-text-dim);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item svg {
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.nav-item:hover {
  color: var(--sidebar-text);
  background: var(--sidebar-hover);
}
.nav-item:hover svg { opacity: 0.9; }

.nav-item.active {
  color: var(--sidebar-active-text);
  background: var(--sidebar-active);
  font-weight: 700;
}
.nav-item.active svg {
  opacity: 1;
  color: var(--sidebar-active-text);
}

/* Active indicator bar */
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--fp-secondary);
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

/* Locked nav item */
.nav-locked { opacity: 0.55; }

.nav-badge {
  margin-left: auto;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-warning-light);
  border-radius: var(--radius-full);
}

/* --- ML Status Card --- */
.sidebar-ml-card {
  margin: var(--space-3) var(--space-3) 0;
  padding: var(--space-4);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-xl);
}

.ml-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-warning-light);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

.ml-card-status {
  font-size: 0.8125rem;
  color: var(--sidebar-text-dim);
  margin-bottom: var(--space-3);
}

.ml-progress-bar {
  height: 4px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-3);
}

.ml-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.6s var(--ease-smooth);
}

.ml-phases {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.6875rem;
}

.ml-phase {
  color: var(--sidebar-text-dim);
  font-weight: 500;
}
.ml-phase.done {
  color: var(--color-success);
  font-weight: 700;
}

.ml-phase-arrow {
  color: var(--sidebar-text-dim);
  opacity: 0.4;
  font-size: 0.625rem;
}

/* --- Sidebar Footer --- */
.sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex-shrink: 0;
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: var(--sidebar-text-dim);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.sidebar-update {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: var(--sidebar-text-dim);
}
.sidebar-update svg { opacity: 0.5; }

.sidebar-copyright {
  font-size: 0.625rem;
  color: var(--sidebar-text-dim);
  opacity: 0.5;
  margin-top: var(--space-1);
}

/* ============================================================================
   SIDEBAR OVERLAY (mobile)
   ============================================================================ */

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-sidebar) - 1);
  opacity: 0;
  transition: opacity 0.3s var(--ease-smooth);
  backdrop-filter: blur(4px);
}

.sidebar-overlay.visible {
  display: block;
  opacity: 1;
}

/* ============================================================================
   MOBILE HEADER
   ============================================================================ */

.mobile-header {
  display: none; /* shown on mobile */
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--mobile-header-h);
  z-index: var(--z-mobile-header);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--space-4);
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.menu-toggle:hover {
  background: var(--glass-blue);
  color: var(--text-primary);
}

.mobile-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--fp-primary);
}
.mobile-logo span { color: var(--fp-secondary); }

.mobile-status {
  display: flex;
  align-items: center;
}

.status-dot-sm {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
  box-shadow: 0 0 4px rgba(16, 185, 129, 0.4);
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
}

/* --- Top Bar --- */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-8);
  min-height: var(--top-bar-h);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-surface);
  flex-shrink: 0;
}

.top-bar-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

.top-bar-subtitle {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin: var(--space-1) 0 0;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.top-bar-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-success);
  padding: var(--space-2) var(--space-4);
  background: rgba(16, 185, 129, 0.08);
  border-radius: var(--radius-full);
}

.btn-theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background: var(--glass-blue);
}
.btn-theme-toggle:hover {
  background: var(--glass-blue-med);
  color: var(--text-primary);
}

/* Sun/Moon icon toggle */
.icon-moon { display: none; }
:root.dark .icon-sun { display: none; }
:root.dark .icon-moon { display: block; }

/* ============================================================================
   MAIN GRID
   ============================================================================ */

.main-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) var(--space-8);
  max-width: var(--container-max);
  flex: 1;
}

/* Grid area assignments */
.grid-hero-result    { grid-column: span 6; }
.grid-hero-countdown { grid-column: span 6; }
.grid-predictions    { grid-column: span 12; }
.grid-heatmap        { grid-column: span 5; }
.grid-frequency      { grid-column: span 7; }
.grid-lotteries      { grid-column: span 12; }

/* ============================================================================
   FOOTER (inside main)
   ============================================================================ */

.main-footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface);
  padding: var(--space-8) var(--space-8);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-max);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  margin-bottom: var(--space-6);
}

.footer-brand h3 {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
}

.footer-brand p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}
.footer-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}
.footer-link:hover { color: var(--fp-secondary); }
.footer-link:hover::after { width: 100%; }

.footer-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin-bottom: var(--space-6);
}

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

.copyright {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  text-align: center;
}

.disclaimer {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding: var(--space-4);
  background: rgba(245, 158, 11, 0.06);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-warning);
}
.disclaimer svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-warning);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

/* Tablet landscape */
@media (max-width: 1280px) {
  .main-grid { gap: var(--space-5); padding: var(--space-5) var(--space-6); }
}

/* Tablet */
@media (max-width: 1024px) {
  .grid-hero-result, .grid-hero-countdown { grid-column: span 6; }
  .grid-heatmap { grid-column: span 6; }
  .grid-frequency { grid-column: span 6; }
}

/* Mobile */
@media (max-width: 768px) {
  body { display: block; }

  /* Sidebar → drawer */
  .sidebar {
    width: 280px;
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: flex; }

  /* Mobile header visible */
  .mobile-header { display: flex; }

  /* Main content full width */
  .main-content {
    margin-left: 0;
    padding-top: var(--mobile-header-h);
  }

  /* Top bar hidden on mobile */
  .top-bar { display: none; }

  /* Grid → single column */
  .main-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-4);
  }
  .grid-hero-result,
  .grid-hero-countdown,
  .grid-predictions,
  .grid-heatmap,
  .grid-frequency,
  .grid-lotteries {
    grid-column: span 1;
  }

  /* Footer */
  .main-footer { padding: var(--space-6) var(--space-4); }
  .footer-top { flex-direction: column; text-align: center; align-items: center; }
  .footer-links { flex-direction: column; gap: var(--space-3); }
}

/* Small mobile */
@media (max-width: 480px) {
  .main-grid { gap: var(--space-3); padding: var(--space-3); }
}

/* ============================================================================
   PRINT
   ============================================================================ */

@media print {
  .sidebar, .mobile-header, .sidebar-overlay,
  .top-bar, .btn-theme-toggle, .btn-refresh,
  .period-selector, .main-footer { display: none !important; }

  .main-content {
    margin-left: 0;
    background: white;
  }

  .card {
    background: white !important;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
}