/* ==========================================================================
   TIME WAVE — GLOBAL DESIGN SYSTEM & MAIN STYLES
   "Precision in Motion. Crafted in Gold & Silver."
   Luxury Horology Storefront
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Canvas & Surfaces (Luminous Luxury White Theme) */
  --ink:          #ffffff;       /* main page background: pure white */
  --canvas:       #ffffff;
  --surface:      #ffffff;       /* cards / primary panels */
  --surface-2:    #f8f9fb;       /* subtle secondary elevated background */
  --surface-3:    #f1f3f6;       /* inputs & pill backgrounds */
  --border:       #e5e8ec;       /* crisp dividers */
  --border-subtle:#f0f2f5;       /* hairline borders */
  --border-brand: rgba(197, 160, 89, 0.35);

  /* Brand Accents — Champagne Gold & Brushed Platinum Silver */
  --gold:         #c5a059;       /* primary gold accent */
  --gold-light:   #e2c16f;       /* radiant gold hover */
  --gold-dim:     #9a7833;       /* refined deep gold */
  --gold-bg:      rgba(197, 160, 89, 0.08);
  --gold-border:  rgba(197, 160, 89, 0.25);

  --silver:       #7d8591;       /* primary silver accent */
  --silver-light: #b4bac3;       /* luminous silver */
  --silver-dim:   #59606a;       /* dark platinum silver */
  --silver-bright:#eef1f5;       /* soft silver metallic tint */
  --silver-bg:    rgba(125, 133, 145, 0.08);
  --silver-border:rgba(125, 133, 145, 0.25);

  /* Metallic Gradients */
  --grad-gold:    linear-gradient(135deg, #d4af37 0%, #f6e297 50%, #aa7c11 100%);
  --grad-silver:  linear-gradient(135deg, #f2f4f7 0%, #b8bec7 50%, #7d848e 100%);
  --grad-twotone: linear-gradient(135deg, #d4af37 0%, #f6e297 35%, #cbd1d8 65%, #7d848e 100%);
  --grad-surface: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);

  /* High Contrast Luxury Typography */
  --text-1:       #111418;       /* primary dark charcoal */
  --text-2:       #4c5460;       /* secondary text */
  --text-3:       #8a939f;       /* tertiary / placeholder */
  --text-inverse: #ffffff;

  /* Feedback Colors */
  --success:      #237a4e;
  --danger:       #b33434;
  --white:        #ffffff;

  /* Shadows */
  --shadow-sm:    0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md:    0 4px 14px rgba(0, 0, 0, 0.06);
  --shadow-lg:    0 10px 28px rgba(0, 0, 0, 0.08);
  --shadow-card:  0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 8px 24px rgba(197, 160, 89, 0.14), 0 2px 8px rgba(0, 0, 0, 0.04);

  /* Typography Scale */
  --text-xs:   0.6875rem;   /* 11px */
  --text-sm:   0.8125rem;   /* 13px */
  --text-base: 0.9375rem;   /* 15px */
  --text-md:   1.0625rem;   /* 17px */
  --text-lg:   1.25rem;     /* 20px */
  --text-xl:   1.625rem;    /* 26px */
  --text-2xl:  2.25rem;     /* 36px */
  --text-3xl:  3.5rem;      /* 56px */
  --text-4xl:  5rem;        /* 80px */

  /* Font Families */
  --font-serif:  'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Grid (8pt System) */
  --space-1:  0.25rem;   /* 4px */
  --space-2:  0.5rem;    /* 8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --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 */

  /* Motion */
  --ease:            cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-fast: 200ms var(--ease);
  --transition-slow: 400ms var(--ease);

  /* Layout & Geometry */
  --max-width:       1320px;
  --gutter:          clamp(1.25rem, 4vw, 3rem);
  --radius-sm:       6px;
  --radius-card:     12px;  /* smooth rounded luxury cards */
  --radius-btn:      6px;   /* buttons/inputs */
  --radius-pill:     9999px;
  
  /* Breakpoints */
  --bp-sm: 480px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1320px;
}

/* --------------------------------------------------------------------------
   2. RESET & BASE ELEMENTS
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--canvas);
  color: var(--text-1);
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: var(--text-base);
  line-height: 1.6;
  background-color: var(--canvas);
  color: var(--text-1);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1 0 auto;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

button {
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* Focus Visibility Accessibility */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--gold);
  color: var(--white);
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  font-size: var(--text-sm);
  z-index: 99999;
  border-radius: var(--radius-btn);
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: var(--space-4);
}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY & EDITORIAL UTILITIES
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 1.15;
  color: var(--text-1);
  letter-spacing: -0.01em;
}

.mono-price {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
  }
}

.section-overline {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: var(--space-2);
}

.section-editorial-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-1);
  font-style: italic;
}

.section-rule {
  width: 48px;
  height: 2px;
  background: var(--grad-gold);
  margin: var(--space-2) 0 var(--space-4) 0;
  border-radius: 1px;
}

.section-header-split {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

@media (min-width: 768px) {
  .section-header-split {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.section-header-centered {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12) auto;
}

.section-header-centered .section-rule {
  margin: var(--space-2) auto var(--space-4) auto;
}

.link-editorial-gold {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gold-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 2px;
  border-bottom: 1.5px solid var(--gold);
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.link-editorial-gold:hover {
  color: var(--gold);
  border-bottom-color: var(--gold-light);
  transform: translateX(3px);
}

/* Two-tone text gradient */
.text-gold {
  color: var(--gold);
}

.text-silver {
  color: var(--silver);
}

.gold-gradient-text {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.silver-gradient-text {
  background: var(--grad-silver);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------------------
   4. UTILITY CLASSES
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.text-center { text-align: center; }
.text-right  { text-align: right; }
.flex        { display: flex; }
.flex-col    { display: flex; flex-direction: column; }
.items-center{ align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2       { gap: var(--space-2); }
.gap-4       { gap: var(--space-4); }
.gap-6       { gap: var(--space-6); }
.w-full      { width: 100%; }

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f3f6;
}

::-webkit-scrollbar-thumb {
  background: #cbd0d8;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}