/* =================================================================
   MAMMUT DESIGN AND BUILD - CSS Variables / Design Tokens
   ================================================================= */

:root {
  /* ---------------------------------------------------------------
     COLOR PALETTE (Modern vibrant palette)
     --------------------------------------------------------------- */

  /* Primary Colors - Vibrant Emerald Green */
  --color-primary: #10B981;
  --color-primary-light: #34D399;
  --color-primary-lighter: #6EE7B7;
  --color-primary-dark: #059669;
  --color-primary-darker: #047857;
  --color-primary-rgb: 16, 185, 129;

  /* Accent Colors - Warm Orange (energy & construction) */
  --color-accent: #F97316;
  --color-accent-light: #FB923C;
  --color-accent-dark: #EA580C;

  /* Earth Tones (from logo foundation) */
  --color-earth: #C4A77D;
  --color-earth-light: #D4C4A8;
  --color-earth-dark: #8B7355;

  /* Neutral Colors - Cool Grays */
  --color-white: #FFFFFF;
  --color-off-white: #F9FAFB;
  --color-light-gray: #E5E7EB;
  --color-mid-gray: #6B7280;
  --color-dark-gray: #374151;
  --color-black: #111827;

  /* Functional Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Modern Gradients */
  --gradient-primary: linear-gradient(135deg, #059669 0%, #10B981 100%);
  --gradient-primary-hover: linear-gradient(135deg, #10B981 0%, #34D399 100%);
  --gradient-accent: linear-gradient(135deg, #EA580C 0%, #F97316 100%);
  --gradient-hero: linear-gradient(135deg, rgba(5, 150, 105, 0.95) 0%, rgba(4, 120, 87, 0.9) 50%, rgba(6, 78, 59, 0.85) 100%);

  /* ---------------------------------------------------------------
     TYPOGRAPHY
     --------------------------------------------------------------- */

  /* Font Family - System UI Stack (native fonts, zero load time) */
  --font-primary: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

  /* Font Sizes - Fluid Typography using clamp() */
  --text-xs: 0.75rem;                                      /* 12px - static */
  --text-sm: 0.875rem;                                     /* 14px - static */
  --text-base: 1rem;                                       /* 16px - static */
  --text-lg: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);     /* 16-18px */
  --text-xl: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);      /* 18-20px */
  --text-2xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);    /* 20-24px */
  --text-3xl: clamp(1.5rem, 1.25rem + 1vw, 1.875rem);     /* 24-30px */
  --text-4xl: clamp(1.75rem, 1.5rem + 1.25vw, 2.25rem);   /* 28-36px */
  --text-5xl: clamp(2.25rem, 1.75rem + 2vw, 3rem);        /* 36-48px */
  --text-6xl: clamp(2.5rem, 2rem + 2.5vw, 3.75rem);       /* 40-60px */

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

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

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

  --space-0: 0;
  --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 Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;

  /* Section Padding */
  --section-padding-y: var(--space-16);
  --section-padding-y-mobile: var(--space-12);

  /* ---------------------------------------------------------------
     BORDERS & RADIUS
     --------------------------------------------------------------- */

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --border-width: 1px;
  --border-width-2: 2px;

  /* ---------------------------------------------------------------
     SHADOWS
     --------------------------------------------------------------- */

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 4px 6px rgba(4, 57, 39, 0.1);
  --shadow-card-hover: 0 8px 25px rgba(4, 57, 39, 0.15);

  /* ---------------------------------------------------------------
     TRANSITIONS
     --------------------------------------------------------------- */

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* ---------------------------------------------------------------
     Z-INDEX SCALE
     --------------------------------------------------------------- */

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-whatsapp: 800;

  /* ---------------------------------------------------------------
     HEADER
     --------------------------------------------------------------- */

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

  /* ---------------------------------------------------------------
     THEME COLORS (Light Mode - Default)
     --------------------------------------------------------------- */

  --bg-primary: #FFFFFF;
  --bg-secondary: #F9FAFB;
  --bg-tertiary: #F3F4F6;
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-inverse: #FFFFFF;
  --border-color: #E5E7EB;
  --card-bg: #FFFFFF;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --card-shadow-hover: 0 20px 40px -12px rgba(0, 0, 0, 0.15), 0 10px 20px -8px rgba(16, 185, 129, 0.1);
  --header-bg-scrolled: rgba(255, 255, 255, 0.85);
  --mobile-nav-bg: #FFFFFF;
  --overlay-bg: rgba(0, 0, 0, 0.5);
}

/* ---------------------------------------------------------------
   DARK MODE THEME
   --------------------------------------------------------------- */

[data-theme="dark"] {
  /* Dark Mode Color Palette - Brighter for contrast */
  --color-primary: #34D399;
  --color-primary-light: #6EE7B7;
  --color-primary-lighter: #A7F3D0;
  --color-primary-dark: #10B981;
  --color-primary-darker: #059669;

  /* Dark Mode Backgrounds - True dark */
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;

  /* Dark Mode Text Colors */
  --text-primary: #F1F5F9;
  --text-secondary: #CBD5E1;
  --text-inverse: #0F172A;

  /* Dark Mode UI Elements */
  --border-color: #334155;
  --card-bg: #1E293B;
  --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(52, 211, 153, 0.1);

  /* Dark Mode Header */
  --header-bg-scrolled: rgba(15, 23, 42, 0.9);
  --mobile-nav-bg: #0F172A;

  /* Dark Mode Overlay */
  --overlay-bg: rgba(0, 0, 0, 0.8);

  /* Adjust neutral colors for dark mode */
  --color-off-white: #1E293B;
  --color-light-gray: #334155;
  --color-mid-gray: #94A3B8;
  --color-dark-gray: #E2E8F0;

  /* Dark Mode Gradients */
  --gradient-primary: linear-gradient(135deg, #10B981 0%, #34D399 100%);
  --gradient-primary-hover: linear-gradient(135deg, #34D399 0%, #6EE7B7 100%);
  --gradient-hero: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(5, 150, 105, 0.3) 50%, rgba(4, 78, 59, 0.4) 100%);

  /* Adjust shadows for dark mode */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  --shadow-card: var(--card-shadow);
  --shadow-card-hover: var(--card-shadow-hover);
}

/* ---------------------------------------------------------------
   RESPONSIVE ADJUSTMENTS
   --------------------------------------------------------------- */

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;    /* 40px on mobile */
    --text-6xl: 3rem;      /* 48px on mobile */
    --section-padding-y: var(--space-12);
  }
}