/* ============================================
   LUMEN Living - Design System
   Mobile-First Approach
   ============================================ */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Colors - Warm & Premium Palette (OWO-inspired) */
  --color-primary: #94B5A6;
  /* Light Sage */
  --color-primary-dark: #6B8F7F;
  /* Darker Sage */
  --color-primary-light: #B8CFC4;
  /* Light Sage */

  --color-secondary: #FAF8F4;
  /* Warm Cream */
  --color-accent: #D4B896;
  /* Muted Terracotta */
  --color-accent-light: #E0C8A8;
  /* Light Terracotta */

  --color-text: #2A2724;
  /* Warm Charcoal */
  --color-text-light: #5C5854;
  /* Warm Gray */
  --color-text-muted: #9A9590;
  /* Muted Warm Gray */

  --color-background: #FAF8F4;
  /* Warm Cream (was white) */
  --color-background-alt: #F3EFE8;
  /* Slightly Darker Cream */
  --color-background-warm: #FDFCFA;
  /* Light Warm */
  --color-background-white: #FFFFFF;
  /* Pure white for cards */

  --color-success: #00B894;
  /* Available */
  --color-warning: #FDCB6E;
  /* Reserved */
  --color-error: #E17055;
  /* Taken */

  /* Dark theme for footer */
  --color-dark: #1A1A1A;
  --color-dark-text: #FFFFFF;
  --color-dark-muted: #888888;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-display: 'Outfit', var(--font-family);
  --font-family-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;

  /* Font Sizes - Mobile First (rem) */
  --text-xs: 0.75rem;
  /* 12px */
  --text-sm: 0.875rem;
  /* 14px */
  --text-base: 1rem;
  /* 16px */
  --text-lg: 1.125rem;
  /* 18px */
  --text-xl: 1.25rem;
  /* 20px */
  --text-2xl: 1.5rem;
  /* 24px */
  --text-3xl: 1.875rem;
  /* 30px */
  --text-4xl: 2.25rem;
  /* 36px */
  --text-5xl: 3rem;
  /* 48px */
  --text-6xl: 3.75rem;
  /* 60px */

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Spacing Scale */
  --space-1: 0.25rem;
  /* 4px */
  --space-2: 0.5rem;
  /* 8px */
  --space-3: 0.75rem;
  /* 12px */
  --space-4: 1rem;
  /* 16px */
  --space-5: 1.25rem;
  /* 20px */
  --space-6: 1.5rem;
  /* 24px */
  --space-8: 2rem;
  /* 32px */
  --space-10: 2.5rem;
  /* 40px */
  --space-12: 3rem;
  /* 48px */
  --space-16: 4rem;
  /* 64px */
  --space-20: 5rem;
  /* 80px */
  --space-24: 6rem;
  /* 96px */
  --space-32: 8rem;
  /* 128px - luxury spacing */

  /* Border Radius - Sharp Look (no rounding) */
  --radius-sm: 0;
  --radius-md: 0;
  --radius-lg: 0;
  --radius-xl: 0;
  --radius-2xl: 0;
  --radius-full: 0;

  /* Shadows - Subtle for premium feel */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-max: 1440px;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-tooltip: 400;
  --z-toast: 500;
}

/* ============================================
   CSS Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

ul,
ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-display);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-3xl);
}

h2 {
  font-size: var(--text-2xl);
}

h3 {
  font-size: var(--text-xl);
}

h4 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

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

.text-accent {
  color: var(--color-primary);
}

/* ============================================
   Layout Components
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.section {
  padding-top: var(--space-24);
  /* 96px - more generous */
  padding-bottom: var(--space-24);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
  /* More space below header */
}

.section-title {
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  /* Elegant tracking */
  font-weight: var(--font-medium);
  /* Lighter weight */
}

.section-subtitle {
  font-family: var(--font-family-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-normal);
  font-style: italic;
  color: var(--color-text-light);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-align: center;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 48px;
  /* Touch-friendly */
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active,
.btn-primary.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-secondary:active,
.btn-secondary.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.btn-white {
  background-color: white;
  color: var(--color-text);
}

.btn-white:hover {
  background-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 56px;
}

/* Outlined button (OWO-inspired) */
.btn-outline {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-text);
}

.btn-outline:hover {
  background-color: var(--color-text);
  color: var(--color-background);
}

.btn-outline:active,
.btn-outline.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background-color: var(--color-background-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 0, 0, 0.04);
  /* Subtle border */
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-body {
  padding: var(--space-6);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  background-color: var(--color-background);
  border: 2px solid var(--color-background-alt);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
  min-height: 48px;
  /* Touch-friendly */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--transition-base);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--space-4);
}

.nav-logo {
  font-family: var(--font-family-display);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  letter-spacing: 0.25em;
  /* Wide tracking like OWO */
  text-transform: uppercase;
  color: var(--color-text);
  /* Neutral, not green */
}

.nav-menu {
  display: none;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

.lang-toggle {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-1);
  background-color: var(--color-background-alt);
  border-radius: var(--radius-full);
}

.lang-btn {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  background: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background-color: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

/* ============================================
   Status Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-full);
}

.badge-available {
  background-color: rgba(0, 184, 148, 0.1);
  color: var(--color-success);
}

.badge-reserved {
  background-color: rgba(253, 203, 110, 0.2);
  color: #E17055;
}

.badge-taken {
  background-color: rgba(225, 112, 85, 0.1);
  color: var(--color-error);
}

/* ============================================
   Utilities
   ============================================ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.bg-alt {
  background-color: var(--color-background-alt);
}

.bg-warm {
  background-color: var(--color-background-warm);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}