/* =========================================================================
   PhotoVault dark theme
   Design tokens + Bootstrap 5.3 dark-mode variable overrides so every
   Bootstrap component (cards, forms, modals, dropdowns, tables, alerts)
   inherits this palette automatically via [data-bs-theme="dark"] on <html>.
   ========================================================================= */

:root {
  --pv-bg: #0a0b10;
  --pv-bg-elevated: #101218;
  --pv-surface: #14161d;
  --pv-surface-2: #1b1e27;
  --pv-border: #262a36;
  --pv-border-strong: #323848;
  --pv-text: #f2f3f5;
  --pv-text-muted: #9099a8;
  --pv-text-faint: #6b7280;
  --pv-accent: #3b82f6;
  --pv-accent-hover: #2f6fe0;
  --pv-accent-soft: rgba(59, 130, 246, 0.16);
  --pv-radius-pill: 999px;
  --pv-radius-lg: 1rem;
  --pv-radius-md: 0.75rem;

  /* Bootstrap primary tracks our accent everywhere (buttons, links, badges, focus rings). */
  --bs-primary: var(--pv-accent);
  --bs-primary-rgb: 59, 130, 246;
  --bs-font-sans-serif: "Segoe UI", ui-sans-serif, system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

[data-bs-theme="dark"] {
  color-scheme: dark;
  --bs-body-bg: var(--pv-bg);
  --bs-body-color: var(--pv-text);
  --bs-emphasis-color: #ffffff;
  --bs-secondary-color: var(--pv-text-muted);
  --bs-secondary-bg: var(--pv-surface-2);
  --bs-tertiary-bg: var(--pv-surface);
  --bs-border-color: var(--pv-border);
  --bs-border-color-translucent: var(--pv-border);
  --bs-link-color: var(--pv-accent);
  --bs-link-hover-color: #63a0ff;
  --bs-link-color-rgb: 59, 130, 246;
  --bs-link-hover-color-rgb: 99, 160, 255;
  --bs-primary-bg-subtle: var(--pv-accent-soft);
  --bs-primary-border-subtle: #1d3a6b;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: var(--pv-bg);
  background-image: radial-gradient(60rem 30rem at 50% -10%, rgba(59, 130, 246, 0.12), transparent 60%);
  background-repeat: no-repeat;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus, .form-select:focus {
  box-shadow: 0 0 0 0.2rem var(--pv-accent-soft);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* --- Buttons: rounded-pill everywhere, solid blue primary ------------------ */

.btn {
  border-radius: var(--pv-radius-pill);
  font-weight: 600;
  padding-left: 1.1rem;
  padding-right: 1.1rem;
}

.btn-sm {
  padding-left: 0.85rem;
  padding-right: 0.85rem;
}

.btn-primary {
  background-color: var(--pv-accent);
  border-color: var(--pv-accent);
}

.btn-primary:hover, .btn-primary:active, .btn-primary:focus {
  background-color: var(--pv-accent-hover) !important;
  border-color: var(--pv-accent-hover) !important;
}

.btn-outline-primary {
  color: var(--pv-accent);
  border-color: var(--pv-accent);
}

.btn-outline-primary:hover {
  background-color: var(--pv-accent);
  border-color: var(--pv-accent);
}

.btn-outline-secondary {
  color: var(--pv-text);
  border-color: var(--pv-border-strong);
}

.btn-outline-secondary:hover {
  background-color: var(--pv-surface-2);
  border-color: var(--pv-border-strong);
  color: var(--pv-text);
}

.btn-link {
  text-decoration: none;
}

/* --- Cards / surfaces ------------------------------------------------------ */

.card {
  background-color: var(--pv-surface);
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius-lg);
}

.form-control, .form-select {
  background-color: var(--pv-surface-2);
  border-color: var(--pv-border-strong);
  color: var(--pv-text);
}

.form-control:focus, .form-select:focus {
  background-color: var(--pv-surface-2);
  color: var(--pv-text);
  border-color: var(--pv-accent);
}

.form-control::placeholder {
  color: var(--pv-text-faint);
}

.modal-content {
  background-color: var(--pv-surface);
  border: 1px solid var(--pv-border);
}

.dropdown-menu {
  background-color: var(--pv-surface);
  border: 1px solid var(--pv-border);
}

.dropdown-item {
  color: var(--pv-text);
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--pv-surface-2);
  color: var(--pv-text);
}

.table {
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--pv-border);
  color: var(--pv-text);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--pv-text-faint);
}

/* --- Navbar ----------------------------------------------------------------- */

.navbar.pv-navbar {
  background-color: var(--pv-bg-elevated);
  border-bottom: 1px solid var(--pv-border);
}

.pv-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--pv-text) !important;
  font-weight: 700;
  font-size: 1.15rem;
}

.pv-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.6rem;
  background-color: var(--pv-accent);
  color: #fff;
  flex-shrink: 0;
}

.pv-navbar .nav-link {
  color: var(--pv-text-muted);
  font-weight: 500;
}

.pv-navbar .nav-link:hover,
.pv-navbar .nav-link.active {
  color: var(--pv-text);
}

.pv-lang-toggle {
  display: inline-flex;
  border: 1px solid var(--pv-border-strong);
  border-radius: var(--pv-radius-pill);
  overflow: hidden;
}

.pv-lang-toggle button {
  border: none;
  background: transparent;
  color: var(--pv-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem;
}

.pv-lang-toggle button.active {
  background-color: var(--pv-surface-2);
  color: var(--pv-text);
}

.pv-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--pv-surface-2);
  border: 1px solid var(--pv-border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--pv-text-muted);
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* --- Hero (Home page) -------------------------------------------------------- */

.pv-hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
}

.pv-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--pv-text);
}

@media (min-width: 768px) {
  .pv-hero h1 {
    font-size: 3.5rem;
  }
}

.pv-hero h1 .accent {
  color: var(--pv-accent);
}

.pv-hero p {
  color: var(--pv-text-muted);
  font-size: 1.05rem;
  max-width: 40rem;
  margin: 0.75rem auto 0;
}

/* --- Dropzone / upload card --------------------------------------------------- */

.dropzone {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  background-color: var(--pv-surface);
  transition: background-color .15s ease-in-out, border-color .15s ease-in-out;
}

.dropzone.dragover {
  background-color: var(--pv-accent-soft);
  border-color: var(--pv-accent);
}

.dropzone .pv-dropzone-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background-color: var(--pv-surface-2);
  color: var(--pv-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.dropzone .pv-dropzone-title {
  font-weight: 700;
  color: var(--pv-text);
  font-size: 1.05rem;
}

.dropzone .pv-dropzone-hint {
  color: var(--pv-text-muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* --- Empty state (reused on My Library / My Clips / Trash when nothing there) - */

.pv-empty-state {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius-lg);
  background-color: var(--pv-surface);
  text-align: center;
  padding: 4rem 1.5rem;
}

.pv-empty-state .pv-empty-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background-color: var(--pv-surface-2);
  color: var(--pv-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.pv-empty-state .pv-empty-title {
  font-weight: 700;
  color: var(--pv-text);
  font-size: 1.05rem;
}

.pv-empty-state .pv-empty-hint {
  color: var(--pv-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

/* --- Media grid -------------------------------------------------------------- */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
}

.media-tile {
  border: 1px solid var(--pv-border);
  border-radius: var(--pv-radius-md);
  overflow: hidden;
  background: var(--pv-surface);
}

.media-tile .thumb {
  height: 110px;
  background: var(--pv-surface-2) center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pv-text);
  font-size: 1.75rem;
}

.media-tile .body {
  padding: 0.6rem;
}

.media-tile .name {
  font-size: 0.8rem;
  color: var(--pv-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-tile {
  cursor: pointer;
}

.draggable-item {
  cursor: grab;
}

.draggable-item:active {
  cursor: grabbing;
}

.drop-target.dragover {
  outline: 2px dashed var(--pv-accent);
  outline-offset: 2px;
  background-color: var(--pv-accent-soft);
}

@media (max-width: 576px) {
  .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 0.6rem;
  }
}
