/*
 * GDN Mini App - Phase 1 visual shell.
 * Header + static hero only. Mobile-first, per section 5 of
 * docs/architecture/GDN_Website_PWA_Frontend_Architecture.md.
 */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--gdn-color-bg);
  color: var(--gdn-color-navy);
  font-family: var(--gdn-font-body);
  -webkit-font-smoothing: antialiased;
  padding-top: env(safe-area-inset-top, 0px);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

/* ---------- Header ---------- */

.gdn-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--gdn-color-surface);
  border-bottom: 1px solid var(--gdn-color-border);
  padding-top: env(safe-area-inset-top, 0px);
}

.gdn-header__inner {
  height: var(--gdn-header-height);
  display: flex;
  align-items: center;
  gap: var(--gdn-space-sm);
  padding: 0 var(--gdn-space-md);
}

.gdn-header__back {
  display: none;
}

.gdn-header__brand {
  font-family: var(--gdn-font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gdn-header__nav {
  display: none;
}

.gdn-header__actions {
  display: flex;
  align-items: center;
  gap: var(--gdn-space-xs);
  margin-left: auto;
}

.gdn-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--gdn-radius-sm);
  border: none;
  background: transparent;
  color: var(--gdn-color-navy);
  cursor: pointer;
}

.gdn-icon-btn svg {
  width: 20px;
  height: 20px;
}

.gdn-icon-btn:hover {
  background: var(--gdn-color-surface-muted);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  margin: var(--gdn-space-md);
  border-radius: var(--gdn-radius-lg);
  overflow: hidden;
  border: 1px solid var(--gdn-color-border);
  /* Slightly taller than the desktop reference proportion, per the
     brief's explicit mobile-hero-height adjustment (section 4/26). */
  min-height: 260px;
  display: flex;
  align-items: flex-end;
}

.hero-media {
  position: absolute;
  inset: 0;
  /* Placeholder gradient standing in for real deal photography -
     see the HTML comment above this element. */
  background: linear-gradient(160deg, #2a2016 0%, #1c1712 55%, #0f0d0a 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #fdfaf3;
  padding: var(--gdn-space-lg) var(--gdn-space-md);
  width: 100%;
}

.hero-eyebrow {
  margin: 0 0 var(--gdn-space-xs);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gdn-color-gold);
}

.hero-title {
  margin: 0 0 var(--gdn-space-sm);
  font-family: var(--gdn-font-display);
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.15;
}

.hero-subtitle {
  margin: 0;
  max-width: 32ch;
  font-size: 0.9rem;
  color: #e3ddce;
}

/* ---------- Desktop ---------- */

@media (min-width: 960px) {
  .gdn-header__inner {
    padding: 0 var(--gdn-space-xl);
  }

  .gdn-header__brand {
    font-size: 1.3rem;
  }

  .gdn-header__nav {
    display: flex;
    gap: var(--gdn-space-md);
    margin-left: var(--gdn-space-xl);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gdn-color-navy-soft);
  }

  .gdn-header__nav .is-active {
    color: var(--gdn-color-navy);
  }

  .hero {
    margin: var(--gdn-space-xl);
    min-height: 360px;
  }

  .hero-content {
    padding: var(--gdn-space-xl);
  }

  .hero-title {
    font-size: 2.75rem;
    max-width: 16ch;
  }

  .hero-subtitle {
    font-size: 1rem;
  }
}