/**
 * RankHotel.AI — design tokens, base UI, and components not covered by Tailwind utilities.
 * Tailwind reads matching --color-* variables via script.js (tailwind.config).
 */

:root {
  /* Spacing scale (rem) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radii */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-full: 9999px;

  /* Semantic colors (Tailwind theme extension) */
  --color-primary-fixed: #d8e2ff;
  --color-primary: #adc6ff;
  --color-outline: #8c909f;
  --color-secondary-fixed-dim: #d0bcff;
  --color-tertiary-fixed-dim: #62df7d;
  --color-secondary-fixed: #e9ddff;
  --color-on-error-container: #ffdad6;
  --color-surface-tint: #adc6ff;
  --color-surface-variant: #353534;
  --color-surface-container-low: #1c1b1b;
  --color-on-surface-variant: #c2c6d6;
  --color-background: #0a0a0a;
  --color-on-primary-fixed-variant: #004395;
  --color-secondary-container: #571bc1;
  --color-on-secondary-fixed: #23005c;
  --color-surface-container-lowest: #0e0e0e;
  --color-tertiary: #62df7d;
  --color-on-secondary: #3c0091;
  --color-on-secondary-container: #c4abff;
  --color-tertiary-container: #1ca64d;
  --color-error-container: #93000a;
  --color-tertiary-fixed: #7ffc97;
  --color-error: #ffb4ab;
  --color-on-tertiary-container: #003111;
  --color-surface-container-high: #2a2a2a;
  --color-on-surface: #e5e2e1;
  --color-primary-container: #4d8eff;
  --color-on-primary-fixed: #001a42;
  --color-on-background: #e5e2e1;
  --color-surface: #0a0a0a;
  --color-primary-fixed-dim: #adc6ff;
  --color-surface-container-highest: #353534;
  --color-on-tertiary-fixed-variant: #005320;
  --color-on-primary: #002e6a;
  --color-on-tertiary-fixed: #002109;
  --color-surface-dim: #131313;
  --color-on-secondary-fixed-variant: #5516be;
  --color-on-error: #690005;
  --color-surface-bright: #3a3939;
  --color-on-tertiary: #003914;
  --color-inverse-primary: #005ac2;
  --color-surface-container: #201f1f;
  --color-inverse-surface: #e5e2e1;
  --color-inverse-on-surface: #313030;
  --color-secondary: #d0bcff;
  --color-on-primary-container: #00285d;
  --color-outline-variant: #424754;

  --font-sans: "Inter", system-ui, sans-serif;
  --header-height: 4.5rem;
  --nav-z: 50;
}

/* --- Base --- */
body {
  background-color: var(--color-background);
  color: var(--color-on-surface);
  font-family: var(--font-sans);
}

/* --- Components (from former inline <style>) --- */
.glass-card {
  background: rgba(42, 42, 42, 0.4);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.electric-glow {
  box-shadow: 0 0 20px rgba(173, 198, 255, 0.3);
}

.ghost-border {
  border: 1px solid rgba(66, 71, 84, 0.15);
}

.text-gradient-primary {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-container) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

/* Dashboard preview: pie segment (replaces inline clip-path) */
.chart-slice-clip {
  clip-path: polygon(50% 50%, 50% 0%, 100% 0%, 100% 100%, 50% 100%);
}

/* --- Skip link (a11y) --- */
.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: calc(var(--nav-z) + 20);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-container);
  color: var(--color-on-primary-container);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  transform: translateY(0);
}

/* --- Primary navigation drawer (mobile) --- */
.site-header {
  z-index: var(--nav-z);
}

.primary-menu {
  display: flex;
}

@media (max-width: 767px) {
  .primary-menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    padding: 0 var(--space-4);
    background: color-mix(in srgb, var(--color-background) 96%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.25s ease;
  }

  .primary-menu.is-open {
    max-height: min(70vh, 28rem);
    opacity: 1;
    pointer-events: auto;
    padding: var(--space-4);
    overflow-y: auto;
  }

  .primary-menu a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-2);
    border-radius: var(--radius-md);
  }
}

@media (min-width: 768px) {
  .primary-menu {
    position: static;
    flex-direction: row;
    align-items: center;
    max-height: none !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    overflow: visible !important;
    padding: 0 !important;
    background: transparent !important;
    border-bottom: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-on-surface);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-toggle-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 22px;
}

.nav-toggle-icon span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Focus visibility for interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .skip-link,
  .primary-menu,
  .nav-toggle-icon span {
    transition: none;
  }
}