/* ============================================
   ONE LIFE DENTAL TOURISM - CSS VARIABLES
   Premium Design System
   ============================================ */

:root {
   /* ==========================================
     BRAND COLORS - Teal/Turquoise Palette
     ========================================== */

   /* Primary Teal Spectrum */
   --color-primary: #1EBFB3;
   --color-primary-light: #5DD3C8;
   --color-primary-lighter: #A8E6E0;
   --color-primary-lightest: #E0F7F5;
   --color-primary-dark: #17A99E;
   --color-primary-darker: #0D7D75;
   --color-primary-darkest: #065A54;

   /* Secondary/Accent Colors */
   --color-gold: #D4A853;
   --color-gold-light: #E5C882;
   --color-gold-dark: #B8903E;

   /* Neutral Colors */
   --color-white: #FFFFFF;
   --color-off-white: #F8FAFB;
   --color-gray-50: #F5F7F8;
   --color-gray-100: #E8EDEF;
   --color-gray-200: #D1D9DD;
   --color-gray-300: #A8B5BC;
   --color-gray-400: #7A8D96;
   --color-gray-500: #5C6F78;
   --color-gray-600: #455560;
   --color-gray-700: #2E3E47;
   --color-gray-800: #1A2830;
   --color-gray-900: #0D1419;

   /* Dark/Footer Color */
   --color-dark: #1A1A2E;
   --color-dark-lighter: #252542;

   /* Semantic Colors */
   --color-success: #10B981;
   --color-warning: #F59E0B;
   --color-error: #EF4444;
   --color-info: var(--color-primary);

   /* ==========================================
     GRADIENTS
     ========================================== */
   /* ==========================================
     GRADIENTS
     ========================================== */
   --gradient-primary: linear-gradient(135deg, #2ECcbd 0%, #17A99E 100%);
   --gradient-primary-soft: linear-gradient(135deg, #F0FDFA 0%, #FFFFFF 100%);
   --gradient-hero: linear-gradient(135deg, #12756d 0%, #1EBFB3 50%, #6cdbd1 100%);
   --gradient-dark: linear-gradient(180deg, #1A1A2E 0%, #252542 100%);
   --gradient-gold: linear-gradient(135deg, #B8903E 0%, #D4A853 50%, #E5C882 100%);
   --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

   /* ==========================================
     TYPOGRAPHY
     ========================================== */

   /* Font Families */
   --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
   --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;

   /* Font Sizes - Fluid Typography */
   --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
   --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
   --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.125rem);
   --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
   --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
   --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
   --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
   --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
   --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 4rem);
   --text-6xl: clamp(3.75rem, 2.75rem + 5vw, 5rem);

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

   /* Line Heights */
   --leading-none: 1;
   --leading-tight: 1.25;
   --leading-snug: 1.375;
   --leading-normal: 1.5;
   --leading-relaxed: 1.625;
   --leading-loose: 2;

   /* Letter Spacing */
   --tracking-tighter: -0.05em;
   --tracking-tight: -0.025em;
   --tracking-normal: 0;
   --tracking-wide: 0.025em;
   --tracking-wider: 0.05em;
   --tracking-widest: 0.1em;

   /* ==========================================
     SPACING
     ========================================== */
   --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 */

   /* ==========================================
     LAYOUT
     ========================================== */
   --container-sm: 640px;
   --container-md: 768px;
   --container-lg: 1024px;
   --container-xl: 1280px;
   --container-2xl: 1536px;
   --container-max: 1440px;

   --header-height: 80px;
   --header-height-scrolled: 70px;

   /* ==========================================
     BORDERS & RADIUS
     ========================================== */
   --radius-sm: 4px;
   --radius-md: 8px;
   --radius-lg: 12px;
   --radius-xl: 16px;
   --radius-2xl: 24px;
   --radius-3xl: 32px;
   --radius-full: 9999px;

   --border-thin: 1px;
   --border-medium: 2px;
   --border-thick: 3px;

   /* ==========================================
     SHADOWS
     ========================================== */
   --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
   --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
   --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
   --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
   --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
   --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
   --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

   /* Colored Shadows */
   --shadow-primary: 0 10px 40px -10px rgba(30, 191, 179, 0.4);
   --shadow-primary-lg: 0 20px 60px -15px rgba(30, 191, 179, 0.5);
   --shadow-gold: 0 10px 40px -10px rgba(212, 168, 83, 0.4);

   /* ==========================================
     TRANSITIONS
     ========================================== */
   --transition-fast: 150ms ease;
   --transition-base: 250ms ease;
   --transition-slow: 350ms ease;
   --transition-slower: 500ms ease;

   --ease-in-out-cubic: cubic-bezier(0.4, 0, 0.2, 1);
   --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
   --ease-in-expo: cubic-bezier(0.7, 0, 0.84, 0);
   --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

   /* ==========================================
     Z-INDEX SCALE
     ========================================== */
   --z-behind: -1;
   --z-base: 0;
   --z-dropdown: 100;
   --z-sticky: 200;
   --z-fixed: 300;
   --z-modal-backdrop: 400;
   --z-modal: 500;
   --z-popover: 600;
   --z-tooltip: 700;
   --z-toast: 800;

   /* ==========================================
     GLASSMORPHISM
     ========================================== */
   --glass-bg: rgba(255, 255, 255, 0.1);
   --glass-bg-dark: rgba(0, 0, 0, 0.2);
   --glass-border: rgba(255, 255, 255, 0.2);
   --glass-blur: blur(20px);
   --glass-blur-lg: blur(40px);
}

/* ==========================================
   DARK MODE OVERRIDES (Future)
   ========================================== */
@media (prefers-color-scheme: dark) {
   :root {
      /* Can add dark mode specific overrides here */
   }
}