/* ==========================================================================
   Layout System — AlleProfit
   Container, Sidebar, Topbar, Grid, Flex utilities
   ========================================================================== */

/* ==========================================================================
   CONTAINER
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-2xl);
    padding-right: var(--space-2xl);
  }
}

.container-narrow {
  max-width: 720px;
}

.container-wide {
  max-width: 1440px;
}

/* ==========================================================================
   TOPBAR
   ========================================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--topbar-height);
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-lg);
}

[data-theme="dark"] .topbar {
  background: rgba(11, 17, 33, 0.85);
}

.topbar-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.topbar-brand svg {
  width: 28px;
  height: 28px;
}

.topbar-brand-highlight {
  color: var(--color-primary);
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.topbar-nav a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.topbar-nav a:hover,
.topbar-nav a.active {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

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

/* Hamburger menu button */
.topbar-hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--color-text);
  cursor: pointer;
}

.topbar-hamburger:hover {
  background: var(--color-surface-hover);
}

@media (max-width: 1023px) {
  .topbar-hamburger {
    display: flex;
  }

  .topbar-nav {
    display: none;
  }
}

/* ==========================================================================
   MOBILE NAVIGATION DRAWER
   ========================================================================== */

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-nav.active {
  visibility: visible;
  opacity: 1;
}

.mobile-nav-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 85vw;
  background: var(--color-surface);
  box-shadow: var(--shadow-xl);
  padding: var(--space-xl);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.mobile-nav.active .mobile-nav-panel {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  list-style: none;
}

.mobile-nav-links a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  border-radius: var(--radius);
  transition: background var(--transition);
}

.mobile-nav-links a:hover {
  background: var(--color-surface-hover);
}

.mobile-nav-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-md) 0;
}

/* ==========================================================================
   SIDEBAR (Dashboard Layout)
   ========================================================================== */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  z-index: var(--z-sticky);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}

.sidebar-header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-md);
  overflow-y: auto;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius);
  transition: all var(--transition);
  margin-bottom: 2px;
  cursor: pointer;
  white-space: nowrap;
}

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

.sidebar-nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
}

.sidebar-nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-section-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-lg) var(--space-md) var(--space-sm);
}

.sidebar-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Collapsed sidebar */
.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar.collapsed .sidebar-nav-item span,
.sidebar.collapsed .sidebar-section-label,
.sidebar.collapsed .sidebar-footer {
  display: none;
}

.sidebar.collapsed .sidebar-nav-item {
  justify-content: center;
  padding: var(--space-sm);
}

/* ==========================================================================
   MAIN CONTENT
   ========================================================================== */

.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed);
}

.main-content-header {
  padding: var(--space-xl) var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.main-content-body {
  padding: var(--space-xl) var(--space-2xl);
}

/* No sidebar (landing pages, auth) */
.main-content.full-width {
  margin-left: 0;
}

@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .main-content {
    margin-left: 0;
  }

  .main-content-header,
  .main-content-body {
    padding: var(--space-lg);
  }
}

/* ==========================================================================
   GRID SYSTEM
   ========================================================================== */

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

/* Responsive grid breakpoints */
@media (max-width: 1279px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1023px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Auto-fill grid */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* ==========================================================================
   FLEX UTILITIES
   ========================================================================== */

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-start {
  display: flex;
  align-items: flex-start;
}

.flex-end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ==========================================================================
   SPACING UTILITIES
   ========================================================================== */

.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

/* ==========================================================================
   DISPLAY UTILITIES
   ========================================================================== */

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

@media (max-width: 639px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .hide-tablet { display: none !important; }
}

@media (min-width: 1024px) {
  .hide-desktop { display: none !important; }
}

@media (max-width: 1023px) {
  .hide-below-desktop { display: none !important; }
}

/* ==========================================================================
   WIDTH / HEIGHT UTILITIES
   ========================================================================== */

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* ==========================================================================
   AUTH LAYOUT (centered card)
   ========================================================================== */

.auth-layout {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: var(--color-bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.auth-header h1 {
  font-size: var(--text-2xl);
  margin-top: var(--space-lg);
}

.auth-header p {
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: var(--weight-medium);
}

.auth-footer a:hover {
  color: var(--color-primary-hover);
}