/**
 * 4S Gurgaon — Global Design System
 * Locked tokens: About (primary bg) + Highlights (secondary bg) are source of truth.
 */

:root {
  /* —— Brand (deep luxury green + muted champagne gold) —— */
  --color-primary: #162820;
  --color-primary-dark: #0a1f19;
  --color-primary-light: #2a5c49;
  --color-primary-mid: #143029;
  --color-secondary: #6e6558;
  --color-accent: #c4a46a;
  --color-accent-hover: #b8955a;
  --color-accent-soft: rgba(196, 164, 106, 0.14);
  --color-gold: #c4a46a;
  --color-gold-bright: #d4a84e;
  --color-gold-soft: #ffe9b0;

  /* —— Locked surfaces —— */
  /* Primary = About silk champagne */
  --color-bg-primary: #f0e4d4;
  --color-bg-primary-mid: #f8ead6;
  /* Secondary = Highlights pearl ivory */
  --color-bg-secondary: #f7f1e6;
  --color-bg-secondary-mid: #faf5ec;
  --color-background: var(--color-bg-secondary);
  --color-background-alt: var(--color-bg-primary);
  --color-surface: #fff8ef;
  --color-surface-muted: #faf5ec;
  --color-surface-dark: #122820;
  --color-surface-dark-alt: #1a342c;
  --color-hero-overlay: rgba(10, 31, 25, 0.55);

  /* —— Text (warm taupe body) —— */
  --color-text: #162820;
  --color-text-muted: rgba(92, 72, 52, 0.78);
  --color-text-subtle: rgba(92, 72, 52, 0.62);
  --color-text-inverse: #f7f1e6;
  --color-text-inverse-muted: rgba(247, 241, 230, 0.72);
  --color-text-link: #162820;
  --color-ink: #162820;

  /* —— Borders & UI —— */
  --color-border: rgba(184, 149, 90, 0.28);
  --color-border-strong: rgba(184, 149, 90, 0.42);
  --color-border-dark: rgba(243, 244, 242, 0.14);
  --color-focus: #c4a46a;
  --color-error: #8f2f2f;
  --color-success: #1b5e3b;
  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #1ebe57;

  /* —— Ribbon / blush accent —— */
  --color-ribbon-red: rgba(193, 18, 31, 0.92);
  --color-ribbon-mid: rgba(193, 18, 31, 0.55);
  --color-ribbon-soft: rgba(255, 232, 214, 0.15);
  --gradient-ribbon: linear-gradient(
    90deg,
    rgba(193, 18, 31, 0.95) 0%,
    rgba(193, 18, 31, 0.72) 28%,
    rgba(210, 80, 70, 0.35) 55%,
    rgba(255, 232, 214, 0.12) 82%,
    transparent 100%
  );
  --gradient-cta-green: linear-gradient(135deg, #143029 0%, #0a1f19 48%, #2a5c49 100%);
  --gradient-cta-accent: linear-gradient(135deg, #c1121f 0%, #c45a4a 42%, #e8c4a8 100%);
  --gradient-cta-accent-hover: linear-gradient(135deg, #a30f1a 0%, #b04a3c 45%, #d4a888 100%);

  /* —— Buttons —— */
  --color-btn-primary-bg: var(--color-primary);
  --color-btn-primary-text: var(--color-text-inverse);
  --color-btn-primary-hover: var(--color-primary-dark);
  --color-btn-secondary-bg: transparent;
  --color-btn-secondary-text: var(--color-primary);
  --color-btn-secondary-border: var(--color-border-strong);
  --color-btn-accent-bg: #c1121f;
  --color-btn-accent-text: #fff8ef;
  --color-btn-accent-hover: #a30f1a;

  /* —— Layout / grid —— */
  --container-width: 1180px;
  --container-narrow: 680px;
  --container-wide: 1320px;
  --header-max-width: 1560px;
  --gutter: 1.5rem;
  --gutter-lg: 2rem;
  --header-height: 82px;
  --header-height-scrolled: 82px;
  --header-height-mobile: 72px;
  --mobile-cta-height: 64px;
  --section-viewport: calc(100svh - var(--header-height-scrolled));

  /* —— Section spacing (match Project Highlights rhythm) —— */
  --section-pad-top: clamp(3.5rem, 6vw, 5.5rem);
  --section-pad-bottom: clamp(3.25rem, 5.5vw, 5rem);
  --section-padding: var(--section-pad-top) 0 var(--section-pad-bottom);
  --section-y: var(--section-pad-top);
  --section-padding-desktop: 5.5rem;
  --section-padding-tablet: 4rem;
  --section-padding-mobile: 3.25rem;
  --section-space: var(--section-pad-top);
  --section-space-sm: clamp(1.75rem, 3vw, 2.5rem);
  --section-space-lg: clamp(3.5rem, 6vw, 5.5rem);
  --section-gap: clamp(1.25rem, 2.5vw, 2rem);
  --content-gap: clamp(1rem, 2vw, 1.5rem);
  --card-padding: clamp(1rem, 2vw, 1.5rem);
  --content-max: 42rem;
  --prose-max: 40rem;

  /* —— Radius (architectural / restrained) —— */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 10px;
  --radius-pill: 999px;

  /* —— Shadows —— */
  --shadow-sm: 0 1px 2px rgba(12, 31, 25, 0.05);
  --shadow-md: 0 10px 30px rgba(12, 31, 25, 0.07);
  --shadow-lg: 0 22px 50px rgba(12, 31, 25, 0.1);
  --shadow-header: 0 1px 0 rgba(12, 31, 25, 0.06);
  --shadow-none: none;

  /* —— Typography —— */
  --font-display: "Cormorant Garamond", "Bodoni Moda", Georgia, serif;
  --font-hero: "Bodoni Moda", "Cormorant Garamond", Georgia, serif;
  --font-body: "Outfit", "Segoe UI", system-ui, sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.0625rem;
  --font-size-lg: 1.1875rem;
  --font-size-xl: 1.375rem;
  --font-size-2xl: clamp(1.45rem, 2.2vw, 1.75rem);
  --font-size-3xl: clamp(1.65rem, 2.8vw, 2.35rem);
  --font-size-display: clamp(2.1rem, 4.5vw, 3.5rem);
  --font-size-hero: clamp(2.75rem, 4.2vw, 4.25rem);
  --font-size-stat: clamp(2rem, 3.5vw, 3rem);

  --color-hero-ink: #1f2a24;
  --color-hero-gold: #b8955a;
  --color-hero-gold-soft: rgba(184, 149, 90, 0.18);

  --line-height-tight: 1.1;
  --line-height-snug: 1.3;
  --line-height-normal: 1.65;
  --letter-spacing-display: -0.02em;
  --letter-spacing-tight: -0.015em;
  --letter-spacing-wide: 0.12em;
  --letter-spacing-eyebrow: 0.16em;

  /* —— Motion —— */
  --transition-fast: 160ms ease;
  --transition-normal: 280ms ease;
  --transition-base: var(--transition-normal);
  --transition-slow: 450ms ease;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* —— Breakpoints (docs) —— */
  --bp-mobile: 480px;
  --bp-tablet: 768px;
  --bp-desktop: 1024px;
  --bp-wide: 1280px;
  --bp-ultrawide: 1440px;

  /* —— Z-index —— */
  --z-header: 1000;
  --z-mobile-cta: 1010;
  --z-back-to-top: 1015;
  --z-whatsapp: 1020;
  --z-nav-drawer: 1030;
  --z-overlay: 1040;
  --z-modal: 1050;
}

@media (max-width: 767.98px) {
  :root {
    --gutter: 1.15rem;
    --section-pad-top: 3.25rem;
    --section-pad-bottom: 3rem;
    --section-padding: 3.25rem 0 3rem;
    --section-y: 3.25rem;
    --section-space: 3.25rem;
  }
}

@media (min-width: 768px) and (max-width: 1023.98px) {
  :root {
    --gutter: 1.5rem;
    --section-y: var(--section-pad-top);
    --section-space: var(--section-pad-top);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
  }
}