/* ===========================
   DontPayList - Layout CSS
   Headers, Containers, Grid Systems
   =========================== */

/* ===========================
   Containers
   =========================== */

.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.container--sm {
  max-width: var(--container-sm);
}

.container--md {
  max-width: var(--container-md);
}

.container--lg {
  max-width: var(--container-lg);
}

.container--xl {
  max-width: var(--container-xl);
}

/* ===========================
   Headers
   =========================== */

.header {
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: var(--z-sticky);
}

.header--gradient {
  background: var(--color-primary);
  color: var(--color-white);
}

.header--white {
  background: var(--color-white);
  color: var(--color-dark);
}

.header--dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.header--sticky {
  position: sticky;
  top: 0;
}

.header__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.header__logo {
  font-size: var(--font-size-xl);
  font-weight: bold;
  color: inherit;
  text-decoration: none;
}

.header--white .header__logo {
  color: var(--color-primary);
}

.header__logo:hover {
  opacity: 0.8;
}

/* ===========================
   Navigation
   =========================== */

.nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav__link {
  color: inherit;
  font-weight: 500;
  transition: opacity var(--transition-base);
  position: relative;
}

.nav__link:hover {
  opacity: 0.8;
  color: inherit;
}

.nav__link--active {
  border-bottom: 2px solid currentColor;
  padding-bottom: 2px;
}

/* ===========================
   Dashboard Layout
   =========================== */

.dashboard-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

/* ===========================
   Sidebar
   =========================== */

.sidebar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  height: fit-content;
  box-shadow: var(--shadow-md);
}

.sidebar__menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar__item {
  margin-bottom: var(--spacing-sm);
}

.sidebar__link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-dark);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  text-decoration: none;
}

.sidebar__link:hover {
  background: var(--color-gray-lighter);
  color: var(--color-dark);
}

.sidebar__link--active {
  background: var(--color-primary);
  color: var(--color-white);
}

.sidebar__link--active:hover {
  color: var(--color-white);
}

.sidebar__divider {
  margin: var(--spacing-md) 0;
  border: none;
  border-top: 1px solid var(--color-gray-light);
}

/* ===========================
   Main Content Area
   =========================== */

.main-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* ===========================
   Page Headers
   =========================== */

.page-header {
  background: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xl);
}

.page-header--compact {
  padding: var(--spacing-md) var(--spacing-lg);
}

.page-title {
  font-size: var(--font-size-2xl);
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  color: var(--color-gray-dark);
  font-size: var(--font-size-base);
}

/* ===========================
   Grid System
   =========================== */

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

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

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

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

.grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid--auto-lg {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===========================
   Sections
   =========================== */

.section {
  padding: var(--spacing-2xl) 0;
}

.section--compact {
  padding: var(--spacing-xl) 0;
}

.section__title {
  font-size: var(--font-size-xl);
  color: var(--color-dark);
  margin-bottom: var(--spacing-lg);
}

/* ===========================
   User Menu
   =========================== */

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: inherit;
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 200px 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
  
  .header__content {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .nav {
    width: 100%;
    justify-content: space-between;
  }
  
  .sidebar {
    margin-bottom: var(--spacing-lg);
  }
}