/* ============================================================
   bergerdesign — shared design system
   Orange-themed, light/dark via [data-theme] on <html>

   Projects import this first, then add their own overrides.
   ============================================================ */

/* ---- Design tokens ---- */
:root {
  --orange:        #FF6B00;
  --orange-light:  #FF8C38;
  --orange-dark:   #C95200;
  --orange-faint:  #FFF0E5;

  /* Light theme (default) */
  --bg:            #FFFFFF;
  --bg-surface:    #F9F9F9;
  --bg-card:       #FFFFFF;
  --border:        #E5E5E5;
  --text:          #1A1A1A;
  --text-muted:    #555555;
  --nav-bg:        #FFFFFF;
  --nav-border:    #E5E5E5;

  /* Shared */
  --radius:        8px;
  --shadow:        0 2px 8px rgba(0,0,0,0.08);
  --transition:    0.2s ease;
}

[data-theme="dark"] {
  --bg:            #141414;
  --bg-surface:    #1E1E1E;
  --bg-card:       #242424;
  --border:        #333333;
  --text:          #F0F0F0;
  --text-muted:    #AAAAAA;
  --nav-bg:        #1A1A1A;
  --nav-border:    #2E2E2E;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-light); text-decoration: underline; }

/* ---- Navigation ---- */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition);
}

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.nav-logo img  { height: 36px; width: auto; }
.nav-logo span { color: var(--orange); }

.nav-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.35rem 0.7rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  line-height: 1;
}

.icon-btn:hover {
  background: var(--orange-faint);
  border-color: var(--orange);
  color: var(--orange-dark);
}

/* ---- Layout ---- */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ---- Hero (base layout — override internals per project) ---- */
.hero {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 3rem 0 2rem;
}

.hero-text h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.hero-text h1 span { color: var(--orange); }

/* ---- Button ---- */
.btn {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition);
  border: none;
  cursor: pointer;
}

.btn:hover { background: var(--orange-dark); color: #fff; text-decoration: none; }

/* ---- Card ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition);
}

.card + .card { margin-top: 1rem; }

.card h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.card .meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.6rem; }
.card p    { color: var(--text-muted); font-size: 0.95rem; }

/* ---- Section heading ---- */
.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
}

/* ---- Tag pill ---- */
.tag {
  background: var(--orange-faint);
  color: var(--orange-dark);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

[data-theme="dark"] .tag {
  background: #2A1800;
  color: var(--orange-light);
}

/* ---- Footer ---- */
footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

footer a { color: var(--orange); }
