/* SiteLedgers - Layout Styles
   Navbar, page containers, and responsive grid.
   Dark charcoal navbar with lime accent. */

/* ─── App Container ────────────────────────────────────── */

.app-container {
  min-height: calc(100vh - var(--navbar-height));
}

/* ─── Navbar ───────────────────────────────────────────── */

.navbar {
  display: flex;
  align-items: center;
  height: var(--navbar-height);
  padding: 0 var(--space-6);
  background-color: var(--color-charcoal);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.navbar__brand {
  flex-shrink: 0;
  margin-right: var(--space-8);
}

.navbar__logo {
  font-family: var(--font-mono);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.5px;
}

.navbar__logo:hover {
  text-decoration: none;
  color: #fff;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
}

.nav-link--active {
  background-color: var(--color-primary);
  color: var(--color-charcoal);
  font-weight: var(--font-weight-bold);
}

.nav-link--active:hover {
  background-color: var(--color-primary-dim);
  color: var(--color-charcoal);
}

.navbar__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
  flex-shrink: 0;
}

.navbar__user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255, 255, 255, 0.7);
}

.navbar__user-name:hover {
  color: var(--color-primary);
}

.navbar__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: var(--space-2);
  margin-left: var(--space-3);
  position: relative;
  z-index: 1000; /* stay above the full-screen links overlay so it can close */
}

.navbar__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.navbar__mobile-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__mobile-toggle.is-open span:nth-child(2) { opacity: 0; }
.navbar__mobile-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Page Layout ──────────────────────────────────────── */

.page {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-header h1 {
  margin: 0;
}

.page-error {
  text-align: center;
  padding: var(--space-12);
  color: var(--color-gray-500);
}

/* ─── Grid System ──────────────────────────────────────── */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ─── Stat Cards Row ───────────────────────────────────── */

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

/* ─── Responsive ───────────────────────────────────────── */

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    background: rgba(18, 24, 38, 0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
  }

  .navbar__links--open {
    display: flex;
  }

  .navbar__links--open .nav-link {
    font-size: var(--font-size-lg);
  }

  .navbar__user-name {
    display: none;
  }

  .navbar__mobile-toggle {
    display: flex;
  }

  .page {
    padding: var(--space-6) var(--space-4);
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .page {
    padding: var(--space-4) var(--space-3);
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }
}