/**
 * gaskb_style - components.css
 * Core UI components inspired by Material Design 3 and cozy-bookmarks.
 */

/* Container & Layout */
.container {
  width: 100%;
  max-width: 44rem;
  margin-inline: auto;
}

.container-wide {
  width: 100%;
  max-width: 64rem;
  margin-inline: auto;
}

/* -------------------------------------------------------------
 * Typography & Links
 * ----------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--md-on-background);
  margin-top: 0;
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 1.6rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }

p {
  margin: 0 0 1rem;
}

a {
  color: var(--md-primary);
  text-decoration: none;
  transition: opacity var(--md-transition-fast);
}

a:hover {
  text-decoration: underline;
}

.text-muted {
  color: var(--md-on-surface-variant);
}

.text-sm {
  font-size: 0.85rem;
}

.text-xs {
  font-size: 0.75rem;
}

.font-brand {
  font-family: var(--md-font-brand);
}

/* -------------------------------------------------------------
 * Header & Brand
 * ----------------------------------------------------------- */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--md-font-brand);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--md-on-background);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--md-primary);
  flex-shrink: 0;
}

.brand-version, .version-badge {
  font-family: var(--md-font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  background-color: var(--md-surface-variant);
  border: 1px solid var(--md-outline-variant);
  padding: 0.12rem 0.45rem;
  border-radius: var(--md-shape-xs);
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
}

.version-badges {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.version-badge-label {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.62rem;
  opacity: 0.85;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Centered Header Layout Pattern */
.site-header-centered {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
}

.site-header-centered .header-leading {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem;
}

.site-header-centered .header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.2rem;
  min-width: 0;
}

.site-header-centered .header-center h1,
.site-header-centered .header-center .app-title {
  margin: 0;
  font-size: 1.35rem;
  font-family: var(--md-font-brand);
  font-weight: 700;
  color: var(--md-on-background);
  line-height: 1.2;
}

.site-header-centered .header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem;
}

/* Specific Settings Button */
.btn-settings {
  width: var(--md-touch-target);
  height: var(--md-touch-target);
  min-height: unset;
  padding: 0;
  border-radius: var(--md-shape-full);
  background: transparent;
  color: var(--md-on-surface-variant);
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--md-transition-fast), color var(--md-transition-fast);
}

.btn-settings:hover {
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface);
}

@media (max-width: 600px) {
  .site-header-centered {
    grid-template-columns: auto 1fr auto;
    gap: 0.5rem;
  }
  .site-header-centered .header-center h1,
  .site-header-centered .header-center .app-title {
    font-size: 1.15rem;
  }
  .version-badges {
    gap: 0.2rem;
  }
  .version-badge {
    font-size: 0.68rem;
    padding: 0.08rem 0.35rem;
  }
}

/* User Menu & Details Dropdowns */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--md-touch-target);
  height: var(--md-touch-target);
  border-radius: var(--md-shape-full);
  color: var(--md-on-surface-variant);
  font-size: 1.15rem;
  transition: background-color var(--md-transition-fast);
}

.user-menu-trigger::-webkit-details-marker {
  display: none;
}

.user-menu-trigger:hover,
.user-menu[open] .user-menu-trigger {
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface);
}

.user-menu-panel {
  position: absolute;
  top: calc(100% + 0.4rem);
  right: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 13rem;
  padding: 0.85rem;
  background-color: var(--md-surface-container-high);
  border-radius: var(--md-shape-medium);
  box-shadow: var(--md-elevation-2);
  border: 1px solid var(--md-outline-variant);
}

.user-menu-panel hr {
  border: 0;
  border-top: 1px solid var(--md-outline-variant);
  margin: 0.25rem 0;
}

/* -------------------------------------------------------------
 * Buttons
 * ----------------------------------------------------------- */
.btn, button {
  font: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  min-height: 2.25rem;
  border-radius: var(--md-shape-full);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background-color var(--md-transition-fast), 
              box-shadow var(--md-transition-fast), 
              color var(--md-transition-fast), 
              border-color var(--md-transition-fast);
  user-select: none;
  touch-action: manipulation;
}

.btn:hover, button:hover {
  text-decoration: none;
}

.btn:disabled, button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Filled / Primary */
.btn-primary, button[type="submit"]:not(.btn-tonal):not(.btn-outlined):not(.btn-danger) {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-1);
}

.btn-primary:hover, button[type="submit"]:not(.btn-tonal):not(.btn-outlined):not(.btn-danger):hover {
  filter: brightness(1.08);
  box-shadow: var(--md-elevation-2);
}

.btn-primary:active, button[type="submit"]:not(.btn-tonal):not(.btn-outlined):not(.btn-danger):active {
  filter: brightness(0.95);
}

/* Tonal / Surface-Container */
.btn-tonal {
  background-color: var(--md-surface-container);
  color: var(--md-on-surface);
  border: 1px solid var(--md-outline-variant);
}

.btn-tonal:hover {
  background-color: var(--md-surface-container-high);
}

/* Outlined */
.btn-outlined {
  background-color: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}

.btn-outlined:hover {
  background-color: var(--md-surface-variant);
}

/* Danger / Destructive */
.btn-danger, button.danger {
  background-color: transparent;
  color: var(--md-error);
  border: 1px solid var(--md-error);
}

.btn-danger:hover, button.danger:hover {
  background-color: var(--md-error-container);
  color: var(--md-on-error-container);
}

.btn-danger.btn-filled {
  background-color: var(--md-error);
  color: var(--md-on-error);
  border: none;
}

/* Ghost / Icon Button */
.btn-icon {
  width: var(--md-touch-target);
  height: var(--md-touch-target);
  min-height: unset;
  padding: 0;
  border-radius: var(--md-shape-full);
  background: transparent;
  color: var(--md-on-surface-variant);
  border: none;
}

.btn-icon:hover {
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface);
}

.link-button {
  background: none;
  border: none;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  text-align: left;
  border-radius: var(--md-shape-small);
}

.link-button:hover {
  color: var(--md-primary);
  background-color: var(--md-surface-variant);
}

/* -------------------------------------------------------------
 * Forms & Inputs
 * ----------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

label, .form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
}

input, textarea, select {
  font: inherit;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-small);
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  transition: border-color var(--md-transition-fast), outline var(--md-transition-fast);
  width: 100%;
}

input::placeholder, textarea::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--md-primary);
  outline: 2px solid var(--md-primary);
  outline-offset: -1px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin-top: 0.2rem;
}

.form-error {
  font-size: 0.75rem;
  color: var(--md-error);
  margin-top: 0.2rem;
}

/* Inline search bar */
.search-bar {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.search-bar input {
  flex: 1;
}

/* -------------------------------------------------------------
 * Tabs & Filter Pills
 * ----------------------------------------------------------- */
.tabs, .filter-pills {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 1rem;
  list-style: none;
  padding: 0;
}

.tabs.tabs-centered, .filter-pills.tabs-centered {
  justify-content: center;
}

.tab-item, .tabs a, .filter-pills a {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--md-shape-full);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--md-transition-fast);
  user-select: none;
}

.tab-item:hover, .tabs a:hover, .filter-pills a:hover {
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface);
  text-decoration: none;
}

.tab-item.active, .tabs a.active, .filter-pills a.active {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: transparent;
  font-weight: 600;
}

/* -------------------------------------------------------------
 * Chips & Badges
 * ----------------------------------------------------------- */
.chips {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.chip, .tag-chip, .tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 500;
  background-color: var(--md-surface-variant);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  border-radius: var(--md-shape-full);
  padding: 0.2rem 0.65rem;
  text-decoration: none;
  transition: border-color var(--md-transition-fast), color var(--md-transition-fast);
}

.chip:hover, .tag-chip:hover {
  border-color: var(--md-primary);
  color: var(--md-primary);
  text-decoration: none;
}

.chip.active {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: transparent;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--md-shape-xs);
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* -------------------------------------------------------------
 * Cards & Lists
 * ----------------------------------------------------------- */
.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.card {
  position: relative;
  background-color: var(--md-surface-container);
  border-radius: var(--md-shape-medium);
  box-shadow: var(--md-elevation-1);
  padding: 1rem;
  border: 1px solid transparent;
  transition: box-shadow var(--md-transition-fast), transform var(--md-transition-fast);
}

.card-interactive:hover {
  box-shadow: var(--md-elevation-2);
}

.card-row {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.card-leading {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-title {
  position: relative;
  z-index: 2;
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-on-surface);
  text-decoration: none;
  overflow-wrap: break-word;
}

.card-title a {
  color: var(--md-on-surface);
  text-decoration: none;
}

.card-title a:hover {
  color: var(--md-primary);
  text-decoration: underline;
}

.card-description {
  color: var(--md-on-surface-variant);
  font-size: 0.88rem;
  margin: 0.35rem 0;
  line-height: 1.4;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin-top: 0.45rem;
}

.card-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-end;
  flex-shrink: 0;
}

.card-stretched-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* -------------------------------------------------------------
 * Floating Action Button (FAB)
 * ----------------------------------------------------------- */
.fab {
  position: fixed;
  bottom: calc(1.5rem + var(--md-safe-bottom));
  right: calc(1.5rem + var(--md-safe-right));
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--md-shape-full);
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  text-decoration: none;
  box-shadow: var(--md-elevation-2);
  border: none;
  cursor: pointer;
  z-index: 40;
  transition: transform var(--md-transition-fast), box-shadow var(--md-transition-fast);
}

.fab:hover {
  transform: scale(1.06);
  box-shadow: var(--md-elevation-3);
  color: var(--md-on-primary);
}

.fab:active {
  transform: scale(0.96);
}

/* -------------------------------------------------------------
 * Alerts & Flash Messages
 * ----------------------------------------------------------- */
.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--md-shape-small);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.flash-ok {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.flash-error {
  background-color: var(--md-error-container);
  color: var(--md-on-error-container);
}

.flash-info {
  background-color: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline-variant);
}

/* -------------------------------------------------------------
 * Dialogs & Bottom Sheet
 * ----------------------------------------------------------- */
dialog, .modal-dialog {
  padding: 0;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-medium);
  background-color: var(--md-surface-container-high);
  color: var(--md-on-surface);
  box-shadow: var(--md-elevation-3);
  max-width: 32rem;
  width: calc(100% - 2rem);
}

dialog::backdrop, .modal-backdrop {
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(2px);
}

.dialog-header {
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--md-outline-variant);
}

.dialog-body {
  padding: 1.25rem;
}

.dialog-actions {
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  border-top: 1px solid var(--md-outline-variant);
}

/* Mobile Bottom Sheet (Responsive) */
@media (max-width: 600px) {
  dialog.bottom-sheet {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100%;
    width: 100%;
    border-radius: var(--md-shape-large) var(--md-shape-large) 0 0;
    margin: 0;
    padding-bottom: var(--md-safe-bottom);
  }
}

/* -------------------------------------------------------------
 * Utilities
 * ----------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: 0.25rem; }
.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }