/* ═══════════════════════════════════════════════════════════════
   Focus Nook — Brand CSS
   Variables, gallery, admin sidebar, buttons, cards, responsive
   ═══════════════════════════════════════════════════════════════ */

/* ── 1. CSS Custom Properties ────────────────────────────────── */
:root {
  --fn-navy:       #2D3A8C;
  --fn-navy-dark:  #22307a;
  --fn-navy-deep:  #1a2561;
  --fn-pink:       #F2A7BB;
  --fn-pink-bg:    #EFA7BB;
  --fn-pink-light: #fce4ed;
  --fn-white:      #FFFFFF;
  --fn-dark:       #1A1A2E;

  --fn-radius-btn:  8px;
  --fn-radius-card: 12px;
  --fn-radius-img:  12px;

  --fn-transition: 0.2s ease;

  --fn-shadow-sm:  0 1px 3px rgba(45,58,140,.08), 0 1px 2px rgba(45,58,140,.06);
  --fn-shadow-md:  0 4px 16px rgba(45,58,140,.12), 0 2px 6px rgba(45,58,140,.08);
  --fn-shadow-lg:  0 10px 40px rgba(45,58,140,.16), 0 4px 12px rgba(45,58,140,.10);
}

/* ── 2. Base Typography ──────────────────────────────────────── */
body {
  font-family: 'Inter', sans-serif;
  color: var(--fn-dark);
  background: var(--fn-white);
  -webkit-font-smoothing: antialiased;
}

/* ── 3. Brand Buttons ────────────────────────────────────────── */
.fn-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--fn-radius-btn);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--fn-transition), transform var(--fn-transition), box-shadow var(--fn-transition);
}
.fn-btn:hover { transform: translateY(-1px); }
.fn-btn:active { transform: translateY(0); }

.fn-btn-primary {
  background: var(--fn-navy);
  color: var(--fn-white);
  box-shadow: var(--fn-shadow-sm);
}
.fn-btn-primary:hover {
  background: var(--fn-navy-dark);
  box-shadow: var(--fn-shadow-md);
}

.fn-btn-secondary {
  background: var(--fn-pink);
  color: var(--fn-navy);
  box-shadow: var(--fn-shadow-sm);
}
.fn-btn-secondary:hover {
  background: var(--fn-pink-bg);
  box-shadow: var(--fn-shadow-md);
}

.fn-btn-outline {
  background: transparent;
  color: var(--fn-navy);
  border: 2px solid var(--fn-navy);
}
.fn-btn-outline:hover {
  background: var(--fn-navy);
  color: var(--fn-white);
}

/* ── 4. Brand Cards ──────────────────────────────────────────── */
.fn-card {
  background: var(--fn-white);
  border-radius: var(--fn-radius-card);
  box-shadow: var(--fn-shadow-sm);
  border: 1px solid rgba(45,58,140,.08);
  transition: box-shadow var(--fn-transition), transform var(--fn-transition);
  overflow: hidden;
}
.fn-card:hover {
  box-shadow: var(--fn-shadow-md);
  transform: translateY(-2px);
}

/* Card with left navy accent border */
.fn-card-accent {
  border-left: 4px solid var(--fn-navy);
}

/* ── 5. Gallery — Public Grid ────────────────────────────────── */
.fn-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 1024px) {
  .fn-gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .fn-gallery-grid { grid-template-columns: 1fr; }
}

.fn-gallery-item {
  position: relative;
  border-radius: var(--fn-radius-img);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--fn-shadow-sm);
  transition: box-shadow var(--fn-transition), transform var(--fn-transition);
}
.fn-gallery-item:hover {
  box-shadow: var(--fn-shadow-lg);
  transform: translateY(-3px);
}

.fn-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--fn-transition);
  display: block;
}
.fn-gallery-item:hover img {
  transform: scale(1.04);
}

/* Pink overlay on hover */
.fn-gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(239,167,187,.55);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--fn-transition);
  border-radius: var(--fn-radius-img);
}
.fn-gallery-item:hover .fn-gallery-overlay {
  opacity: 1;
}
.fn-gallery-overlay svg {
  color: white;
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,.3));
}

/* Featured badge */
.fn-gallery-featured-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--fn-pink);
  color: var(--fn-navy);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ── 6. Gallery Filter Tabs ──────────────────────────────────── */
.fn-filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.fn-filter-btn {
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  border: 2px solid rgba(45,58,140,.15);
  background: transparent;
  color: var(--fn-navy);
  cursor: pointer;
  transition: all var(--fn-transition);
}
.fn-filter-btn:hover {
  border-color: var(--fn-pink);
  background: var(--fn-pink-light);
}
.fn-filter-btn.active {
  background: var(--fn-navy);
  color: var(--fn-white);
  border-color: var(--fn-navy);
}

/* ── 7. Public Nav (mobile) ──────────────────────────────────── */
.fn-mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  flex-direction: column;
  background: var(--fn-navy);
  padding: 24px;
  overflow-y: auto;
  transition: opacity var(--fn-transition);
}
.fn-mobile-menu.open {
  display: flex;
}
.fn-mobile-menu a {
  color: white;
  font-size: 20px;
  font-weight: 600;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
  text-decoration: none;
  transition: color var(--fn-transition);
}
.fn-mobile-menu a:hover {
  color: var(--fn-pink);
}

.fn-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
@media (max-width: 768px) {
  .fn-hamburger { display: flex; }
}
.fn-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ── 8. Admin Gallery Manager ────────────────────────────────── */
.fn-admin-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.fn-admin-gallery-item {
  border-radius: var(--fn-radius-card);
  border: 2px solid transparent;
  overflow: hidden;
  box-shadow: var(--fn-shadow-sm);
  transition: border-color var(--fn-transition), box-shadow var(--fn-transition);
  background: white;
}
.fn-admin-gallery-item.featured {
  border-color: var(--fn-pink);
}
.fn-admin-gallery-item:hover {
  box-shadow: var(--fn-shadow-md);
}

.fn-admin-gallery-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.fn-admin-gallery-meta {
  padding: 10px 12px;
}
.fn-admin-gallery-meta p { margin: 0; font-size: 12px; }
.fn-admin-gallery-meta .filename { font-weight: 600; color: var(--fn-dark); word-break: break-all; }
.fn-admin-gallery-meta .folder-tag {
  display: inline-block;
  margin-top: 4px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 7px;
  border-radius: 999px;
}
.folder-tag.close-up { background: var(--fn-pink-light); color: var(--fn-navy); }
.folder-tag.wide-angle { background: #eef0fb; color: var(--fn-navy); }

/* ── 9. GLightbox customization ──────────────────────────────── */
.glightbox-clean .gslide-description {
  background: var(--fn-navy);
}
.glightbox-clean .gslide-title {
  color: white;
  font-family: 'Inter', sans-serif;
}
.glightbox-clean .gnext,
.glightbox-clean .gprev {
  background: var(--fn-pink);
}

/* ── 10. Utility / Polish ────────────────────────────────────── */
.fn-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--fn-navy);
}

.fn-divider {
  border: none;
  border-top: 1px solid rgba(45,58,140,.1);
  margin: 0;
}

/* Smooth page transitions */
* { box-sizing: border-box; }
a { transition: color var(--fn-transition); }
img { max-width: 100%; height: auto; }