/* ===== APP LAYOUT ===== */

/* Login page — full viewport */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

/* App shell */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  grid-row: 1 / -1;
  background: var(--clr-bg-alt);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  padding: var(--sp-lg);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}

.sidebar-logo-mark {
  width: 36px; height: 36px;
  background: var(--clr-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: #0d1117;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.sidebar-logo-sub {
  font-size: 11px;
  color: var(--clr-text-muted);
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  padding: var(--sp-md) var(--sp-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--clr-text-dim);
  padding: var(--sp-sm) var(--sp-md) 6px;
  margin-top: var(--sp-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px var(--sp-md);
  border-radius: var(--radius-md);
  color: var(--clr-text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--t-fast), color var(--t-fast);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--clr-surface);
  color: var(--clr-text);
}

.nav-item.active {
  background: var(--clr-accent-muted);
  color: var(--clr-accent);
  font-weight: 600;
}

.nav-item svg { flex-shrink: 0; }

.sidebar-footer {
  padding: var(--sp-md);
  border-top: 1px solid var(--clr-border);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: var(--sp-sm) var(--sp-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--t-fast);
}
.sidebar-user:hover { background: var(--clr-surface); }

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--clr-accent-muted);
  border: 2px solid var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--clr-accent);
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name  { font-size: 13px; font-weight: 600; color: var(--clr-text); truncate: ellipsis; }
.user-role  { font-size: 11px; color: var(--clr-text-muted); }

/* Topbar */
.topbar {
  background: var(--clr-bg-alt);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sp-lg);
  gap: var(--sp-md);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

/* Main content */
.main-content {
  padding: var(--sp-xl);
  overflow-y: auto;
  background: var(--clr-bg);
  position: relative;
}

/* Page header */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--sp-xl);
  gap: var(--sp-md);
}

.page-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.page-subtitle {
  font-size: 14px;
  color: var(--clr-text-muted);
  margin-top: 6px;
  line-height: 1.5;
}

/* Grid layouts */
.grid-kpi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-md);
  margin-bottom: var(--sp-xl);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}

/* Content sections */
.section {
  margin-bottom: var(--sp-xl);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-md);
}

.section-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Toolbar (above tables) */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}

.toolbar-end {
  margin-left: auto;
  display: flex;
  gap: var(--sp-sm);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: var(--topbar-h) 1fr;
  }

  .sidebar {
    position: fixed;
    left: -var(--sidebar-w);
    top: 0;
    width: var(--sidebar-w);
    height: 100vh;
    z-index: 50;
    transform: translateX(calc(-1 * var(--sidebar-w)));
    transition: transform var(--t-mid) var(--ease-out);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-card);
  }

  .main-content {
    padding: var(--sp-md);
  }

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

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

@media (max-width: 768px) {
  .grid-kpi {
    grid-template-columns: 1fr 1fr;
  }

  .page-header {
    flex-direction: column;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-end {
    margin-left: 0;
  }
}

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

/* Overlay for mobile sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 49;
}

@media (max-width: 1024px) {
  .sidebar-overlay.open { display: block; }
}