/* ==========================================================================
   IRON OAK STUDIO — CORE SYSTEM & DESIGN TOKENS
   ========================================================================== */

:root {
  /* Color System */
  --bg-warm-ivory: #F4F2EC;
  --bg-soft-white: #FAFAF7;
  --text-deep-charcoal: #171B19;
  --color-muted-green: #3D554A;
  --color-soft-sage: #AAB8AF;
  --border-light-neutral: #D8DDD9;
  --border-subtle: rgba(23, 27, 25, 0.1);
  --shadow-soft: 0 10px 30px rgba(23, 27, 25, 0.04);
  --shadow-medium: 0 20px 40px rgba(23, 27, 25, 0.08);
  --shadow-hover: 0 30px 60px rgba(23, 27, 25, 0.12);

  /* Typography Families */
  --font-serif: 'Playfair Display', 'Newsreader', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Scale */
  --space-xs: 0.5rem;   /* 8px */
  --space-sm: 1rem;     /* 16px */
  --space-md: 1.5rem;   /* 24px */
  --space-lg: 2.5rem;   /* 40px */
  --space-xl: 4rem;     /* 64px */
  --space-2xl: 6.5rem;  /* 104px */
  --space-3xl: 9.5rem;  /* 152px */

  /* Layout Containers */
  --container-max-width: 1320px;
  --container-padding: clamp(1.25rem, 5vw, 3.5rem);

  /* Transitions */
  --ease-out-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-smooth: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.25s var(--ease-out-smooth);
  --transition-normal: 0.4s var(--ease-out-smooth);
  --transition-slow: 0.7s var(--ease-out-smooth);

  /* Scrollbars */
  scrollbar-gutter: stable;
}

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-warm-ivory);
  color: var(--text-deep-charcoal);
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-warm-ivory);
  color: var(--text-deep-charcoal);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Accessibility & Focus States */
:focus-visible {
  outline: 2px solid var(--color-muted-green);
  outline-offset: 4px;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* Section Containers */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-padding {
  padding-top: clamp(4rem, 10vw, var(--space-3xl));
  padding-bottom: clamp(4rem, 10vw, var(--space-3xl));
}

.section-border-bottom {
  border-bottom: 1px solid var(--border-light-neutral);
}

.divider {
  width: 100%;
  height: 1px;
  background-color: var(--border-light-neutral);
  margin: var(--space-xl) 0;
}