/* ═══════════════════════════════════════════════════════
   LAYOUT — Page structure and grid systems
   ═══════════════════════════════════════════════════════ */

body {
  font-family: var(--font-body);
  font-weight: var(--weight-regular);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  letter-spacing: var(--tracking-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* ── Page Wrapper ── */
.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Header ──
   Flex layout: logo + title on the left, nav in the middle (pushed right of
   the logo naturally), user chip on the right. The nav stays centered on
   wide screens via flex-grow on the right element; on narrow screens it
   slides right of the title instead of overlapping. */
.header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--gradient-hero);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-md);
}

.header__nav {
  margin-left: auto;
}

.header__right {
  margin-left: auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  min-width: 0;
  overflow: hidden;
}

.header__logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  display: block;
}

.header__title {
  font-family: var(--font-display, var(--font-body));
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1;
  padding-left: var(--space-4);
  border-left: 1px solid rgba(255, 255, 255, 0.3);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .header {
    padding: var(--space-3) var(--space-4);
  }
  .header__title {
    display: none;
  }
  .header__logo-img {
    height: 32px;
  }
}

.header__center {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  max-width: 400px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header__right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header__user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
}

/* ── Navigation ── */
.header__nav {
  display: flex;
  gap: var(--space-1);
}

.header__nav-link {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.header__nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.header__nav-link--active {
  color: var(--vertex-gold);
}

/* Admin nav link — hidden by default; revealed when the page's auth check
   determines the current user is an admin (adds `is-admin` on <body>). */
.header__nav-link--admin {
  display: none;
}
body.is-admin .header__nav-link--admin {
  display: inline-flex;
}

/* ── Main Content ── */
.main {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* ── Landing Page Layout ── */
.landing {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.landing__hero {
  margin-bottom: var(--space-10);
}

.landing__title {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-3xl);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  color: var(--vertex-blue);
}

.landing__title em {
  font-style: normal;
  color: var(--vertex-gold);
  display: block;
  font-size: 0.7em;
  margin-top: var(--space-2);
}

.landing__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
  line-height: var(--leading-normal);
}

/* ── Dashboard Grid ── */
.dashboard {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.dashboard__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}

.dashboard__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* ── Section Divider ── */
.divider {
  height: 2px;
  background: var(--hazard-stripe-subtle);
  border: none;
  margin: var(--space-4) 0;
}

/* ── Container Utilities ── */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  width: 100%;
}

.container--narrow {
  max-width: 640px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .header {
    padding: var(--space-3) var(--space-4);
  }

  .header__center,
  .header__nav {
    display: none;
  }

  .main {
    padding: var(--space-4);
  }

  .landing__title {
    font-size: var(--text-3xl);
  }

  .dashboard__stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .dashboard__stats {
    grid-template-columns: 1fr;
  }
}
