/* ==========================================================================
   Bindery Website Layout & Base Styles
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  overflow-x: hidden;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-main);
}

p {
  color: var(--text-muted);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-prose);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Announcement Ribbon */
.announcement-bar {
  background-color: var(--bar-bg);
  color: var(--bar-text);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 16px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
  letter-spacing: 0.01em;
}

.announcement-badge {
  background-color: var(--bar-badge-bg);
  color: var(--bar-badge-text);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.announcement-link {
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  font-weight: 600;
}

/* Navigation Header */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.site-nav.scrolled {
  background-color: rgba(var(--bg-page), 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
}

/* Sections Base */
.section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

.section-alt {
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  line-height: 1.6;
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface-subtle);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 40px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-main);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-subtle);
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .nav-menu {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .section {
    padding-top: 70px;
    padding-bottom: 70px;
  }

  .section-title {
    font-size: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}