/* ============================================
   Variant A — "Studiolo Warm"
   Extracted from StanicLabOS styles.css
   Warm linen, forest green, amber, walnut
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Studiolo warm linen backgrounds */
  --bg-void: #F5F2ED;
  --bg-primary: #FEFDFB;
  --bg-secondary: #EFEBE4;
  --bg-tertiary: #E4DFD7;

  /* Studiolo accents */
  --accent-primary: #1B4332;
  --accent-secondary: #B45309;
  --accent-tertiary: #6B4C3B;
  --accent-warning: #CA8A04;
  --accent-success: #166534;
  --accent-danger: #991B1B;

  /* Text */
  --text-primary: #1C1917;
  --text-secondary: #57534E;
  --text-muted: #A8A29E;
  --text-accent: #1B4332;

  /* Borders */
  --border-color: #D6D3CD;
  --border-strong: #A8A29E;

  /* Fonts */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Hero overlay (for gradient) */
  --hero-overlay-rgb: 245, 242, 237;
}

/* Variant A nav: transparent → linen on scroll */
.site-nav.scrolled {
  background: rgba(254, 253, 251, 0.95);
}

/* Variant A hero: warm illustration + gradient overlay */
.hero-bg {
  background: url('../images/hero/hero-A.png') center center / cover no-repeat,
    linear-gradient(135deg, #EFEBE4 0%, #F5F2ED 30%, #E4DFD7 60%, #D6D3CD 100%);
}

/* Variant A cards: no shadows, forest green left border */
.card {
  box-shadow: none;
}

.theme-card {
  border-left-color: var(--accent-primary);
}

/* Variant A "For Machines": walnut border, amber accents */
.for-machines {
  border-color: var(--accent-tertiary);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.for-machines h2 {
  color: var(--accent-tertiary);
}

/* Variant A link colors */
a:hover {
  color: var(--accent-secondary);
}

/* Variant A selection */
::selection {
  background: rgba(27, 67, 50, 0.15);
  color: var(--text-primary);
}

/* Variant A scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

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