/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform 0.2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }

.btn-solid {
  background: var(--sand);
  color: var(--vevva-blue-deep);
}
.btn-solid:hover { background: var(--sand-light); }

.btn-outline-light {
  border: 1px solid var(--line-on-navy);
  color: var(--ivory);
  background: transparent;
}
.btn-outline-light:hover {
  border-color: var(--ivory);
  background: rgba(238, 231, 221, 0.06);
}

.btn-outline-dark {
  border: 1px solid var(--line-on-cream);
  color: var(--ink);
  background: transparent;
}
.btn-outline-dark:hover {
  border-color: var(--ink);
  background: rgba(28, 28, 26, 0.04);
}

/* Header */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(9, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), height var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: var(--vevva-blue);
  box-shadow: 0 6px 24px rgba(5, 12, 23, 0.25);
  height: 68px;
}
.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.site-header__logo img { height: 30px; width: auto; }
.site-header__wordmark {
  font-family: var(--font-display);
  font-size: var(--step-2);
  letter-spacing: 0.14em;
  color: var(--ivory);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.85rem, 1.4vw, 1.5rem);
  flex-wrap: nowrap;
  white-space: nowrap;
}
.site-nav__link {
  font-size: clamp(0.72rem, 0.85vw, 0.86rem);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ivory);
  opacity: 0.88;
  position: relative;
  padding-block: 0.4rem;
}
.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--sand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.site-nav__link:hover,
.site-nav__link.is-active { opacity: 1; }
.site-nav__link:hover::after,
.site-nav__link.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 1.5rem; }

.nav-toggle {
  display: none;
  width: 32px; height: 32px;
  position: relative;
  color: var(--ivory);
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: '';
  position: absolute;
  left: 4px; right: 4px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle::before { top: 10px; }
.nav-toggle span { top: 15.25px; }
.nav-toggle::after { top: 20.5px; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(5.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }
.nav-toggle[aria-expanded="true"]::after { transform: translateY(-5.25px) rotate(-45deg); }

/* Cards */
.icon-card {
  border: 1px solid var(--line-on-navy);
  padding: 1.75rem 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  color: var(--ivory);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.icon-card:hover {
  background: rgba(238, 231, 221, 0.05);
  border-color: var(--sand);
  transform: translateY(-3px);
}
.icon-card__icon { width: 34px; height: 34px; color: var(--sand); }
.icon-card__title {
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.media-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  background: var(--vevva-blue-deep);
}
.media-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.media-card:hover img { transform: scale(1.05); }
.media-card__label {
  position: absolute; inset-inline: 0; bottom: 0;
  padding: 2.5rem 1.1rem 1.1rem;
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ivory);
  background: linear-gradient(180deg, transparent, rgba(5, 12, 23,0.92) 65%);
}

.item-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.item-card__media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--cream-deep);
}
.item-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.item-card:hover .item-card__media img { transform: scale(1.04); }
.item-card__title { font-family: var(--font-display); font-size: var(--step-1); }
.item-card__meta { font-size: var(--step--1); color: var(--ink-soft); }
.item-card__date {
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  color: var(--sand);
  font-weight: 600;
}

/* Tabs */
.tabs {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--line-on-cream);
  margin-bottom: 2.5rem;
  overflow-x: auto;
}
.tabs.on-navy { border-bottom-color: var(--line-on-navy); }
.tab {
  padding-block: 0.9rem;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.tabs.on-navy .tab { color: rgba(238, 231, 221,0.65); }
.tab.is-active { color: var(--ink); border-color: var(--sand); }
.tabs.on-navy .tab.is-active { color: var(--ivory); }

/* Forms */
.field { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.4rem; }
.field label {
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ivory);
}
.field input, .field textarea {
  background: rgba(238, 231, 221, 0.06);
  border: 1px solid var(--line-on-navy);
  color: var(--ivory);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: rgba(238, 231, 221,0.4); }
.field input:focus, .field textarea:focus {
  border-color: var(--sand);
  background: rgba(238, 231, 221, 0.1);
}
.field-error { font-size: var(--step--1); color: #e0a5a5; }
.field textarea { resize: vertical; min-height: 120px; }

.form-status {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  margin-bottom: 1.5rem;
  display: none;
}
.form-status.is-success { display: block; background: rgba(120, 200, 150, 0.15); color: #bfe8cc; border: 1px solid rgba(120,200,150,0.4); }
.form-status.is-error { display: block; background: rgba(224, 120, 120, 0.15); color: #f0bcbc; border: 1px solid rgba(224,120,120,0.4); }

/* Divider */
.divider {
  width: 48px; height: 1px;
  background: var(--sand);
  margin-inline: auto;
}

/* Skeleton / loading */
.skeleton {
  background: linear-gradient(90deg, rgba(0,0,0,0.05) 25%, rgba(0,0,0,0.09) 37%, rgba(0,0,0,0.05) 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }