/**
 * ActivGate Layout System
 * =======================
 * Standardized page layouts, containers, and modal patterns.
 */

/* ========================================
 * CONTAINERS
 * ======================================== */

.ag-container {
  width: 100%;
  max-width: var(--ag-container-xl);
  margin-inline: auto;
  padding-inline: var(--ag-space-page);
}

.ag-container--sm { max-width: var(--ag-container-sm); }
.ag-container--md { max-width: var(--ag-container-md); }
.ag-container--lg { max-width: var(--ag-container-lg); }
.ag-container--xl { max-width: var(--ag-container-xl); }
.ag-container--2xl { max-width: var(--ag-container-2xl); }
.ag-container--full { max-width: 100%; }

/* Fluid container with max constraint */
.ag-container--fluid {
  max-width: var(--ag-container-max);
  padding-inline: var(--ag-space-6);
}

@media (max-width: 767px) {
  .ag-container--fluid {
    padding-inline: var(--ag-space-4);
  }
}

/* ========================================
 * PAGE LAYOUTS
 * ======================================== */

/**
 * Standard page layout
 * - Header (sticky)
 * - Main content
 * - Footer
 */
.ag-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--ag-color-bg-page);
}

.ag-page__header {
  position: sticky;
  top: 0;
  z-index: var(--ag-z-header);
  background: var(--ag-color-bg-surface);
  border-bottom: 1px solid var(--ag-color-border);
}

.ag-page__main {
  flex: 1;
  padding-block: var(--ag-space-section);
}

.ag-page__footer {
  margin-top: auto;
  padding-block: var(--ag-space-6);
  background: var(--ag-color-bg-surface-alt);
  border-top: 1px solid var(--ag-color-border);
}

/**
 * Two-column layout (sidebar + content)
 * Use with .ag-layout--sidebar-left or .ag-layout--sidebar-right
 */
.ag-layout {
  display: grid;
  gap: var(--ag-space-6);
}

.ag-layout--sidebar-left {
  grid-template-columns: var(--ag-sidebar-width) 1fr;
}

.ag-layout--sidebar-right {
  grid-template-columns: 1fr var(--ag-sidebar-width);
}

.ag-layout--sidebar-narrow-left {
  grid-template-columns: 220px 1fr;
}

.ag-layout--sidebar-narrow-right {
  grid-template-columns: 1fr 220px;
}

/* Responsive: Stack on mobile */
@media (max-width: 991px) {
  .ag-layout--sidebar-left,
  .ag-layout--sidebar-right,
  .ag-layout--sidebar-narrow-left,
  .ag-layout--sidebar-narrow-right {
    grid-template-columns: 1fr;
  }
}

/**
 * Split layout (equal columns)
 */
.ag-layout--split {
  grid-template-columns: 1fr 1fr;
}

.ag-layout--split-60-40 {
  grid-template-columns: 1.2fr 0.8fr;
}

.ag-layout--split-40-60 {
  grid-template-columns: 0.8fr 1.2fr;
}

@media (max-width: 767px) {
  .ag-layout--split,
  .ag-layout--split-60-40,
  .ag-layout--split-40-60 {
    grid-template-columns: 1fr;
  }
}

/**
 * Detail page layout (content + sticky sidebar)
 */
.ag-layout--detail {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: var(--ag-space-6);
  align-items: start;
}

.ag-layout--detail .ag-layout__sidebar {
  position: sticky;
  top: calc(var(--ag-header-height) + var(--ag-space-4));
}

@media (max-width: 991px) {
  .ag-layout--detail {
    grid-template-columns: 1fr;
  }

  .ag-layout--detail .ag-layout__sidebar {
    position: static;
    order: -1;
  }
}

/**
 * Dashboard layout (sidebar + main)
 */
.ag-layout--dashboard {
  display: grid;
  grid-template-columns: var(--ag-sidebar-width) 1fr;
  min-height: 100vh;
}

.ag-layout--dashboard .ag-layout__sidebar {
  background: var(--ag-color-bg-sidebar);
  color: var(--ag-color-text-on-dark);
  padding: var(--ag-space-4);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.ag-layout--dashboard .ag-layout__main {
  padding: var(--ag-space-6);
  background: var(--ag-color-bg-page);
  overflow-y: auto;
}

@media (max-width: 991px) {
  .ag-layout--dashboard {
    grid-template-columns: 1fr;
  }

  .ag-layout--dashboard .ag-layout__sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--ag-sidebar-width);
    transform: translateX(-100%);
    transition: transform var(--ag-transition-slow);
    z-index: var(--ag-z-overlay);
  }

  .ag-layout--dashboard.sidebar-open .ag-layout__sidebar {
    transform: translateX(0);
  }
}

/* ========================================
 * SECTION PATTERNS
 * ======================================== */

.ag-section {
  padding-block: var(--ag-space-section);
}

.ag-section--sm {
  padding-block: var(--ag-space-4);
}

.ag-section--lg {
  padding-block: var(--ag-space-12);
}

.ag-section--hero {
  padding-block: var(--ag-space-16);
  background: var(--ag-gradient-brand);
  color: var(--ag-color-text-on-primary);
}

.ag-section__header {
  margin-bottom: var(--ag-space-6);
}

.ag-section__title {
  margin: 0 0 var(--ag-space-2);
  font-family: var(--ag-font-serif);
  font-size: var(--ag-font-size-3xl);
  font-weight: var(--ag-font-weight-bold);
  color: var(--ag-color-text-heading);
  letter-spacing: var(--ag-letter-spacing-tight);
}

.ag-section__subtitle {
  margin: 0;
  font-size: var(--ag-font-size-base);
  color: var(--ag-color-text-muted);
}

/* ========================================
 * GRID PATTERNS
 * ======================================== */

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

/* Auto-fit grids */
.ag-grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(var(--ag-card-min-width), 1fr));
}

.ag-grid--cards-sm {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.ag-grid--cards-lg {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* Fixed column grids */
.ag-grid--2 { grid-template-columns: repeat(2, 1fr); }
.ag-grid--3 { grid-template-columns: repeat(3, 1fr); }
.ag-grid--4 { grid-template-columns: repeat(4, 1fr); }
.ag-grid--5 { grid-template-columns: repeat(5, 1fr); }
.ag-grid--6 { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 991px) {
  .ag-grid--4,
  .ag-grid--5,
  .ag-grid--6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .ag-grid--2,
  .ag-grid--3,
  .ag-grid--4,
  .ag-grid--5,
  .ag-grid--6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 479px) {
  .ag-grid--2,
  .ag-grid--3,
  .ag-grid--4,
  .ag-grid--5,
  .ag-grid--6 {
    grid-template-columns: 1fr;
  }

  .ag-grid--cards {
    grid-template-columns: 1fr;
  }
  .ag-grid--cards-sm {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* ========================================
 * MODAL / DIALOG SYSTEM
 * ======================================== */

/**
 * Modal backdrop
 */
.ag-modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--ag-color-bg-overlay);
  z-index: var(--ag-z-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ag-transition-normal), visibility var(--ag-transition-normal);
}

.ag-modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

/**
 * Modal container
 */
.ag-modal {
  position: fixed;
  inset: 0;
  z-index: var(--ag-z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ag-space-4);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ag-transition-normal), visibility var(--ag-transition-normal);
}

.ag-modal.is-active,
.ag-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/**
 * Modal dialog box
 */
.ag-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 500px;
  max-height: calc(100vh - var(--ag-space-8));
  background: var(--ag-color-bg-surface);
  border-radius: var(--ag-radius-modal);
  box-shadow: var(--ag-shadow-2xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--ag-transition-slow);
}

/* Media modal (photos, reels) - larger size */
.ag-media-modal .ag-modal__dialog,
.ag-photo-modal .ag-modal__dialog {
  width: min(1200px, 96vw);
  max-width: none;
  height: min(85vh, 800px);
  max-height: calc(100vh - 32px);
}

.ag-modal.is-active .ag-modal__dialog,
.ag-modal.is-open .ag-modal__dialog {
  transform: translateY(0) scale(1);
}

/* Modal sizes */
.ag-modal--sm .ag-modal__dialog { max-width: 400px; }
.ag-modal--lg .ag-modal__dialog { max-width: 700px; }
.ag-modal--xl .ag-modal__dialog { max-width: 900px; }
.ag-modal--full .ag-modal__dialog {
  max-width: calc(100vw - var(--ag-space-8));
  max-height: calc(100vh - var(--ag-space-8));
}

/* Modal header */
.ag-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ag-space-3);
  padding: var(--ag-space-4) var(--ag-space-5);
  border-bottom: 1px solid var(--ag-color-border);
  flex-shrink: 0;
}

.ag-modal__title {
  margin: 0;
  font-size: var(--ag-font-size-lg);
  font-weight: var(--ag-font-weight-semibold);
  color: var(--ag-color-text-heading);
}

.ag-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--ag-radius-md);
  color: var(--ag-color-text-muted);
  cursor: pointer;
  transition: var(--ag-transition-colors);
}

.ag-modal__close:hover {
  background: var(--ag-color-interactive-hover);
  color: var(--ag-color-text-body);
}

/* Modal body */
.ag-modal__body {
  padding: var(--ag-space-5);
  overflow-y: auto;
  flex: 1;
}

/* Modal footer */
.ag-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--ag-space-2);
  padding: var(--ag-space-4) var(--ag-space-5);
  border-top: 1px solid var(--ag-color-border);
  flex-shrink: 0;
}

.ag-modal__footer--split {
  justify-content: space-between;
}

/* ========================================
 * DRAWER / SLIDE-OUT PANEL
 * ======================================== */

.ag-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  z-index: var(--ag-z-modal);
  width: 100%;
  max-width: 400px;
  background: var(--ag-color-bg-surface);
  box-shadow: var(--ag-shadow-2xl);
  display: flex;
  flex-direction: column;
  transition: transform var(--ag-transition-slow);
}

.ag-drawer--left {
  left: 0;
  transform: translateX(-100%);
}

.ag-drawer--right {
  right: 0;
  transform: translateX(100%);
}

.ag-drawer.is-active {
  transform: translateX(0);
}

.ag-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ag-space-3);
  padding: var(--ag-space-4);
  border-bottom: 1px solid var(--ag-color-border);
  flex-shrink: 0;
}

.ag-drawer__title {
  margin: 0;
  font-size: var(--ag-font-size-lg);
  font-weight: var(--ag-font-weight-semibold);
}

.ag-drawer__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--ag-radius-md);
  color: var(--ag-color-text-muted);
  cursor: pointer;
  transition: var(--ag-transition-colors);
}

.ag-drawer__close:hover {
  background: var(--ag-color-interactive-hover);
  color: var(--ag-color-text-body);
}

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

.ag-drawer__footer {
  padding: var(--ag-space-4);
  border-top: 1px solid var(--ag-color-border);
  flex-shrink: 0;
}

/* ========================================
 * POPOVER / DROPDOWN
 * ======================================== */

.ag-popover {
  position: absolute;
  z-index: var(--ag-z-popover);
  min-width: 200px;
  background: var(--ag-color-bg-surface);
  border: 1px solid var(--ag-color-border);
  border-radius: var(--ag-radius-xl);
  box-shadow: var(--ag-shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--ag-transition-fast),
              visibility var(--ag-transition-fast),
              transform var(--ag-transition-fast);
}

.ag-popover.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.ag-popover__header {
  padding: var(--ag-space-3) var(--ag-space-4);
  border-bottom: 1px solid var(--ag-color-border);
}

.ag-popover__body {
  padding: var(--ag-space-2);
}

.ag-popover__item {
  display: flex;
  align-items: center;
  gap: var(--ag-space-2);
  width: 100%;
  padding: var(--ag-space-2) var(--ag-space-3);
  font-size: var(--ag-font-size-sm);
  color: var(--ag-color-text-body);
  background: transparent;
  border: none;
  border-radius: var(--ag-radius-md);
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition: var(--ag-transition-colors);
}

.ag-popover__item:hover {
  background: var(--ag-color-interactive-hover);
}

.ag-popover__item--danger {
  color: var(--ag-color-error);
}

.ag-popover__item--danger:hover {
  background: var(--ag-color-error-soft);
}

.ag-popover__divider {
  height: 1px;
  margin: var(--ag-space-2) 0;
  background: var(--ag-color-border);
}

/* ========================================
 * TOOLTIP
 * ======================================== */

.ag-tooltip {
  position: absolute;
  z-index: var(--ag-z-tooltip);
  max-width: 250px;
  padding: var(--ag-space-2) var(--ag-space-3);
  font-size: var(--ag-font-size-xs);
  color: var(--ag-color-text-on-primary);
  background: var(--ag-color-brand-secondary);
  border-radius: var(--ag-radius-md);
  box-shadow: var(--ag-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity var(--ag-transition-fast),
              visibility var(--ag-transition-fast),
              transform var(--ag-transition-fast);
  pointer-events: none;
}

.ag-tooltip.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Tooltip arrow */
.ag-tooltip::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: var(--ag-color-brand-secondary);
}

.ag-tooltip--bottom::before {
  bottom: auto;
  top: 100%;
  border-bottom-color: transparent;
  border-top-color: var(--ag-color-brand-secondary);
}

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

/* Show/hide at breakpoints */
@media (max-width: 479px) {
  .ag-hide-xs { display: none !important; }
}

@media (min-width: 480px) and (max-width: 767px) {
  .ag-hide-sm { display: none !important; }
}

@media (min-width: 768px) and (max-width: 991px) {
  .ag-hide-md { display: none !important; }
}

@media (min-width: 992px) and (max-width: 1279px) {
  .ag-hide-lg { display: none !important; }
}

@media (min-width: 1280px) {
  .ag-hide-xl { display: none !important; }
}

/* Show only at breakpoints */
@media (min-width: 480px) {
  .ag-show-xs-only { display: none !important; }
}

@media (max-width: 479px), (min-width: 768px) {
  .ag-show-sm-only { display: none !important; }
}

@media (max-width: 767px), (min-width: 992px) {
  .ag-show-md-only { display: none !important; }
}

@media (max-width: 991px), (min-width: 1280px) {
  .ag-show-lg-only { display: none !important; }
}

@media (max-width: 1279px) {
  .ag-show-xl-only { display: none !important; }
}

/* ========================================
 * FOCUS MANAGEMENT
 * ======================================== */

/* Focus trap indicator (for modals) */
.ag-focus-trap {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}