/**
 * MacroBuddyCrunch Layout Styles
 * ===============================
 * Grid, containers, and navigation.
 */

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

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

.container-md {
  max-width: 768px;
}

.container-lg {
  max-width: 1024px;
}

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

.page-content {
  flex: 1;
  padding: var(--space-4);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-4);
}

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

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

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

/* Responsive grid */
.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Flex utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.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-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Stack (vertical spacing) */
.stack > * + * {
  margin-top: var(--space-4);
}

.stack-sm > * + * {
  margin-top: var(--space-2);
}

.stack-lg > * + * {
  margin-top: var(--space-6);
}

/* ==================== */
/* NAVIGATION           */
/* ==================== */

/* Header */
.header {
  background: var(--color-surface);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--space-4);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

/* Sidebar (Coach desktop) */
.sidebar {
  width: var(--nav-width-sidebar);
  background: var(--color-surface);
  border-right: var(--border-width) solid var(--color-border);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  z-index: var(--z-fixed);
}

.sidebar-collapsed {
  width: var(--nav-width-sidebar-collapsed);
}

.sidebar-header {
  padding: var(--space-4);
  border-bottom: var(--border-width) solid var(--color-border);
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-base);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-in-out);
}

.sidebar-nav-item:hover {
  background: var(--color-border-light);
  text-decoration: none;
}

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

.sidebar-nav-item .icon {
  flex-shrink: 0;
}

/* Main content with sidebar */
.main-with-sidebar {
  margin-left: var(--nav-width-sidebar);
  min-height: 100vh;
}

/* Bottom navigation (Client mobile) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: var(--border-width) solid var(--color-border);
  display: flex;
  justify-content: space-around;
  padding: var(--space-2) 0;
  z-index: var(--z-fixed);
  height: var(--nav-height-mobile);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--font-size-xs);
  min-width: 64px;
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
  color: var(--color-primary);
  text-decoration: none;
}

.bottom-nav-item .icon {
  width: var(--icon-size-lg);
  height: var(--icon-size-lg);
}

/* Page with bottom nav padding */
.page-with-bottom-nav {
  padding-bottom: calc(var(--nav-height-mobile) + var(--space-4));
}

/* ==================== */
/* RESPONSIVE           */
/* ==================== */

@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--duration-base) var(--ease-in-out);
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .main-with-sidebar {
    margin-left: 0;
  }

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

@media (max-width: 639px) {
  .container {
    padding: 0 var(--space-3);
  }

  .page-content {
    padding: var(--space-3);
  }
}

/* Hide on mobile/desktop */
@media (max-width: 1023px) {
  .hide-mobile { display: none !important; }
}

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