/* ══ HERO ══ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding: 9rem 3rem 6rem;
}
.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(
      ellipse 55% 65% at 5% 45%,
      rgba(26, 155, 181, 0.09) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 40% 50% at 95% 25%,
      rgba(26, 155, 181, 0.05) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 70% 40% at 50% 105%,
      rgba(7, 18, 30, 0.98) 0%,
      transparent 55%
    );
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero-platform {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(125, 211, 232, 0.6);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.1s forwards;
}
.hero-platform-line {
  width: 28px;
  height: 1px;
  background: var(--teal2);
  opacity: 0.5;
}
.hero-tagline {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(5rem, 13vw, 12rem);
  font-weight: 200;
  line-height: 0.88;
  letter-spacing: -5px;
  color: #fff;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.95s ease 0.25s forwards;
}
.hero-tagline em {
  font-style: italic;
  color: var(--teal2);
}
.hero-divider {
  width: 56px;
  height: 1px;
  background: var(--teal-rule);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.45s forwards;
}
.hero-statement {
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  font-weight: 300;
  color: rgba(232, 240, 248, 0.72);
  max-width: 640px;
  line-height: 1.75;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.6s forwards;
}
.hero-statement strong {
  font-weight: 600;
  color: rgba(232, 240, 248, 0.95);
}
.hero-merits {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  margin-top: 3.5rem;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.8s forwards;
}
.hero-merit {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: rgba(232, 240, 248, 0.45);
}
.merit-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

/* ══ WAVE ══ */
.wave {
  display: block;
  width: 100%;
  line-height: 0;
}

/* ══ CONVICTION ══ */
.conviction {
  background: var(--paper);
  padding: 6rem 3rem;
}
.conviction-inner {
  max-width: 820px;
  margin: 0 auto;
}
.conviction-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.conviction-rule {
  width: 20px;
  height: 1px;
  background: var(--teal);
  opacity: 0.5;
}
.conviction-heading {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -0.3px;
  margin-bottom: 1.75rem;
}
.conviction-body {
  font-size: 19px;
  font-weight: 400;
  color: var(--ink-light);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}
.conviction-body:last-child {
  margin-bottom: 0;
}

/* ══ CATEGORIES ══ */
.categories {
  background: var(--deep);
  padding: 6rem 3rem 7rem;
}
.categories-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.categories-header {
  margin-bottom: 4rem;
}
.categories-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: rgba(26, 155, 181, 0.55);
  margin-bottom: 0.65rem;
  display: block;
}
.categories-heading {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 300;
  color: #fff;
  letter-spacing: -0.2px;
}

/* ══ CATEGORY GRID ══ */
.cat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.cat-card {
  background: var(--deep2);
  padding: 3.5rem 3rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.cat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.cat-card:hover {
  background: var(--deep3);
}
.cat-card:hover::after {
  transform: scaleX(1);
}
.cat-card:hover .cat-arrow {
  opacity: 1;
  gap: 0.85rem;
}
.cat-card:hover .cat-title {
  color: var(--cat-accent2);
}

/* Per-card accent worlds */
.cat-card.deep-brief {
  --cat-accent: var(--azure);
  --cat-accent2: var(--azure2);
}
.cat-card.deep-brief::after {
  background: linear-gradient(90deg, var(--azure), var(--azure2));
}
.cat-card.deep-brief .cat-num {
  color: rgba(42, 127, 196, 0.5);
}
.cat-card.deep-brief .cat-tag {
  color: rgba(168, 212, 240, 0.5);
}
.cat-card.deep-brief .cat-arrow {
  color: var(--azure2);
}

.cat-card.dive-gear {
  --cat-accent: #c9a227;
  --cat-accent2: #f0d27a;
}
.cat-card.dive-gear::after {
  background: linear-gradient(90deg, #c9a227, #f0d27a);
}
.cat-card.dive-gear .cat-num {
  color: rgba(201, 162, 39, 0.5);
}
.cat-card.dive-gear .cat-tag {
  color: rgba(240, 210, 122, 0.5);
}
.cat-card.dive-gear .cat-arrow {
  color: #f0d27a;
}

.cat-card.dive-guide {
  --cat-accent: var(--teal);
  --cat-accent2: var(--teal2);
}
.cat-card.dive-guide::after {
  background: linear-gradient(90deg, var(--teal), var(--teal2));
}
.cat-card.dive-guide .cat-num {
  color: rgba(26, 155, 181, 0.5);
}
.cat-card.dive-guide .cat-tag {
  color: rgba(125, 211, 232, 0.5);
}
.cat-card.dive-guide .cat-arrow {
  color: var(--teal2);
}

.cat-card.dive-intelligence {
  --cat-accent: var(--phosphor);
  --cat-accent2: var(--phosphor2);
}
.cat-card.dive-intelligence::after {
  background: linear-gradient(90deg, var(--phosphor), var(--phosphor2));
}
.cat-card.dive-intelligence .cat-num {
  color: rgba(45, 212, 160, 0.5);
}
.cat-card.dive-intelligence .cat-tag {
  color: rgba(126, 236, 208, 0.5);
}
.cat-card.dive-intelligence .cat-arrow {
  color: var(--phosphor2);
}

.cat-eyebrow {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cat-num, rgba(255, 255, 255, 0.3));
  margin-bottom: 1.25rem;
}
.cat-title {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(1.9rem, 2.8vw, 2.8rem);
  font-weight: 200;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.3px;
  margin-bottom: 0.6rem;
  transition: color 0.25s;
}
.cat-tag {
  font-family: 'Crimson Pro', serif;
  font-size: 1.05rem;
  font-weight: 300;
  font-style: italic;
  margin-bottom: 2rem;
}
.cat-rule {
  width: 28px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 2rem;
}
.cat-desc {
  font-size: 17px;
  font-weight: 400;
  color: rgba(232, 240, 248, 0.5);
  line-height: 1.85;
  flex: 1;
  max-width: 420px;
}
.cat-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.5rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.45;
  transition:
    opacity 0.25s,
    gap 0.25s;
}
.cat-arrow svg {
  width: 14px;
  height: 14px;
}

/* ══ CLOSING ══ */
.closing {
  background: var(--paper);
  padding: 6rem 3rem;
}
.closing-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.closing-heading {
  font-family: 'Crimson Pro', serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -0.3px;
  margin-bottom: 1.5rem;
}
.closing-heading em {
  font-style: italic;
  color: var(--teal);
}
.closing-body {
  font-size: 19px;
  font-weight: 400;
  color: var(--ink-light);
  line-height: 1.9;
  max-width: 580px;
  margin: 0 auto 2.5rem;
}

/* ══ REVEAL ══ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.75s ease,
    transform 0.75s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.rd1 {
  transition-delay: 0.1s;
}
.rd2 {
  transition-delay: 0.2s;
}
.rd3 {
  transition-delay: 0.3s;
}
.rd4 {
  transition-delay: 0.4s;
}

/* ══ ANIMATIONS ══ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ══ RESPONSIVE ══ */
@media (max-width: 900px) {
  .cat-grid {
    grid-template-columns: 1fr;
  }
  .topbar {
    padding: 0 1.5rem;
  }
}
@media (max-width: 768px) {
  .hero {
    padding: 7rem 1.5rem 5rem;
  }
  .hero-tagline {
    letter-spacing: -3px;
  }
  .conviction {
    padding: 4rem 1.5rem;
  }
  .categories {
    padding: 4rem 1.5rem 5rem;
  }
  .cat-card {
    padding: 2.5rem 2rem;
  }
  .closing {
    padding: 4rem 1.5rem;
  }
  .hero-merits {
    gap: 0.75rem 2rem;
  }
}
@media (max-width: 480px) {
  .hero-tagline {
    letter-spacing: -2px;
  }
}