/* ═══════════════════════════════════════════════════════════════
   DIPPIN DOTS - Landing Page
   The miracle: the hero title is painted in diamonds as you scroll.
═══════════════════════════════════════════════════════════════ */

/* ── Nav ── */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  background: rgba(22, 13, 42, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-logo {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  text-decoration: none;
  background: linear-gradient(90deg, var(--amethyst-lt), var(--rose-lt), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.nav-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.2s;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0 var(--sp-2);
}
.nav-link:hover { color: var(--ink); }

/* ── Hero ── */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  text-align: center;
  padding: 80px var(--sp-5) var(--sp-8);
  overflow: hidden;
}

/* Generative background stars */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 80%, rgba(123,79,212,0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 20%, rgba(240,96,144,0.12) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 30%, rgba(56,128,216,0.1) 0%, transparent 40%);
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amethyst-lt);
  margin-bottom: var(--sp-4);
  opacity: 0;
  animation: fadeSlideUp 0.7s var(--ease-out) 0.3s forwards;
}

.hero-title-wrap {
  position: relative;
  margin-bottom: var(--sp-4);
}

/* The scroll-painted hero canvas - overlays the hero title */
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-title {
  font-size: clamp(3.5rem, 14vw, 9rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 0.95;
  background: linear-gradient(135deg, #fff 0%, var(--rose-lt) 40%, var(--gold) 75%, var(--amethyst-lt) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeSlideUp 0.7s var(--ease-out) 0.5s forwards;
}

.hero-sub {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 400;
  color: var(--ink-dim);
  margin-bottom: var(--sp-7);
  max-width: 500px;
  opacity: 0;
  animation: fadeSlideUp 0.7s var(--ease-out) 0.7s forwards;
}
.hero-sub strong { color: var(--ink); font-weight: 800; }

.hero-cta {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeSlideUp 0.7s var(--ease-out) 0.9s forwards;
}
.cta-primary {
  font-size: 1.05rem;
  padding: var(--sp-4) var(--sp-7);
  border-radius: var(--r-xl);
  box-shadow: 0 0 40px rgba(123,79,212,0.5), var(--shadow-md);
}
.cta-secondary {
  font-size: 0.9rem;
  color: var(--ink-dim);
}

/* Floating diamond sparkles in hero bg */
.hero-sparkles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.sparkle-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  background: var(--gold);
  opacity: 0;
  animation: sparkleFade var(--dur, 3s) ease-in-out var(--delay, 0s) infinite;
}
@keyframes sparkleFade {
  0%, 100% { opacity: 0; transform: translateY(0) scale(0.5); }
  50%       { opacity: 0.8; transform: translateY(-8px) scale(1); }
}

/* ── How it works ── */
.how-section {
  padding: var(--sp-8) var(--sp-5);
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}
.how-section h2 { margin-bottom: var(--sp-6); }
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.how-step {
  position: relative;
  padding: var(--sp-6) var(--sp-4);
  background: var(--velvet-mid);
  border-radius: var(--r-lg);
  border: 1px solid rgba(255,255,255,0.07);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}
.how-step:hover { border-color: rgba(123,79,212,0.4); transform: translateY(-4px); }
.how-step::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amethyst), var(--rose));
  opacity: 0;
  transition: opacity 0.3s;
}
.how-step:hover::before { opacity: 1; }
.step-num {
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amethyst-lt);
  margin-bottom: var(--sp-3);
}
.step-icon {
  font-size: 2.5rem;
  margin-bottom: var(--sp-3);
  display: block;
}
.step-title { font-size: 1.05rem; font-weight: 800; margin-bottom: var(--sp-2); color: var(--ink); }
.step-desc  { font-size: 0.85rem; color: var(--ink-dim); line-height: 1.6; }

/* ── Demo strip ── */
.demo-section {
  padding: var(--sp-7) var(--sp-5);
  background: var(--velvet-mid);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.demo-section-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--sp-7);
}
.demo-text { flex: 1; }
.demo-text h2 { margin-bottom: var(--sp-3); }
.demo-text p  { margin-bottom: var(--sp-5); }
.demo-canvas-wrap {
  flex: 1.2;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--glow-amethyst), var(--shadow-lg);
  background: var(--velvet);
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
#demo-canvas {
  display: block;
  max-width: 100%;
}

/* ── Gallery preview strip ── */
.gallery-preview-section {
  padding: var(--sp-8) var(--sp-5);
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.gallery-preview-section h2 { margin-bottom: var(--sp-3); }
.gallery-preview-section > p { margin-bottom: var(--sp-6); }
.preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}
.preview-card {
  aspect-ratio: 1;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--velvet-mid);
  border: 1px solid rgba(255,255,255,0.07);
  position: relative;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s;
}
.preview-card:hover {
  transform: scale(1.04);
  box-shadow: var(--glow-amethyst), var(--shadow-md);
}
.preview-card img { width: 100%; height: 100%; object-fit: cover; }
.preview-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-2) var(--sp-3);
  background: linear-gradient(0deg, rgba(22,13,42,0.9) 0%, transparent 100%);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--ink-dim);
  text-align: left;
}

/* ── Final CTA section ── */
.final-cta {
  padding: var(--sp-8) var(--sp-5);
  text-align: center;
}
.final-cta h2 { margin-bottom: var(--sp-3); }
.final-cta p  { margin-bottom: var(--sp-6); max-width: 400px; margin-left: auto; margin-right: auto; }

/* ── Animations ── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .how-steps {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }
  .demo-section-inner {
    flex-direction: column-reverse;
    gap: var(--sp-5);
  }
  .preview-grid { grid-template-columns: repeat(2, 1fr); }
}