/* ============================================
   MOLTCRAFT LANDING PAGE
   Dark fantasy / gaming — clean & modern
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-deep: #05050a;
  --bg-primary: #0a0a0f;
  --bg-card: #111118;
  --bg-card-hover: #16161f;
  --bg-surface: #1a1a24;
  --border: #1e1e2a;
  --border-hover: #2a2a3a;
  --text-primary: #e8e8ed;
  --text-secondary: #8888a0;
  --text-muted: #555566;
  --gold: #ffd700;
  --gold-dim: #f59e0b;
  --green: #22c55e;
  --green-dim: #16a34a;
  --green-glow: rgba(34, 197, 94, 0.15);
  --gold-glow: rgba(255, 215, 0, 0.08);
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

img { max-width: 100%; height: auto; display: block; }

/* --- Typography --- */
.section-title {
  font-family: var(--font-pixel);
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  line-height: 1.5;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

.gold { color: var(--gold); }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  background: rgba(5, 5, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.8; }

.nav-logo-icon {
  font-size: 1.2rem;
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.3));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 500;
}

.nav-links a:hover { color: var(--text-primary); }

.nav-github {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(255, 215, 0, 0.04) 0%, transparent 70%),
    var(--bg-deep);
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-bg-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  margin-bottom: 56px;
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(1.8rem, 5.5vw, 3.2rem);
  line-height: 1.5;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 0 20px var(--green-glow), 0 4px 12px rgba(34, 197, 94, 0.25);
}

.btn-primary:hover {
  background: var(--green-dim);
  transform: translateY(-1px);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.25), 0 8px 20px rgba(34, 197, 94, 0.3);
}

.btn-icon {
  font-size: 0.8rem;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* --- Screenshot --- */
.hero-screenshot {
  max-width: 900px;
  margin: 0 auto;
}

.screenshot-frame {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 215, 0, 0.03),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(255, 215, 0, 0.03);
  transition: box-shadow 0.5s ease;
}

.screenshot-frame:hover {
  box-shadow:
    0 0 0 1px rgba(255, 215, 0, 0.06),
    0 25px 80px rgba(0, 0, 0, 0.6),
    0 0 120px rgba(255, 215, 0, 0.05);
}

.screenshot-bar {
  display: flex;
  gap: 6px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.screenshot-frame img {
  width: 100%;
  display: block;
}

/* --- Features --- */
.features {
  padding: 100px 0;
  background:
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-primary) 30%, var(--bg-primary) 70%, var(--bg-deep) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.03) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--gold);
  margin-bottom: 12px;
  line-height: 1.6;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  position: relative;
}

/* --- Get Started --- */
.get-started {
  padding: 100px 0;
  background: var(--bg-deep);
}

.code-block {
  max-width: 600px;
  margin: 0 auto 56px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.code-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 5px 12px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}

.copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.03);
}

.copy-btn.copied {
  color: var(--green);
  border-color: var(--green);
}

.code-block pre {
  padding: 20px 24px;
  overflow-x: auto;
}

.code-block code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.95rem;
  color: var(--green);
}

.code-prompt {
  color: var(--text-muted);
  margin-right: 8px;
  user-select: none;
}

/* --- Steps --- */
.steps {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--gold);
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Open Source --- */
.open-source {
  padding: 100px 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(255, 215, 0, 0.03) 0%, transparent 70%),
    var(--bg-primary);
}

.oss-content {
  text-align: center;
}

.oss-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 720px;
  margin: 0 auto 40px;
}

.oss-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  text-align: left;
}

.oss-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.oss-card svg {
  flex-shrink: 0;
  color: var(--gold);
}

.oss-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.oss-card span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.oss-license {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.license-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid rgba(255, 215, 0, 0.15);
  border-radius: 20px;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--gold);
  letter-spacing: 0.05em;
}

.oss-license p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 12px;
  font-weight: 400;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text-secondary);
}

/* --- Particles --- */
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% {
    opacity: 0;
    transform: translateY(0) scale(1);
  }
  10% {
    opacity: 0.4;
  }
  90% {
    opacity: 0.1;
  }
  100% {
    opacity: 0;
    transform: translateY(-200px) scale(0.5);
  }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(5, 5, 10, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    padding: 120px 0 60px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .oss-links {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer-brand {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-tagline {
    margin-left: 0;
    width: 100%;
    margin-top: 4px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Selection --- */
::selection {
  background: rgba(255, 215, 0, 0.2);
  color: var(--text-primary);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* --- Animations on scroll --- */
.feature-card,
.step,
.oss-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.feature-card.visible,
.step.visible,
.oss-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.feature-card:nth-child(2) { transition-delay: 0.08s; }
.feature-card:nth-child(3) { transition-delay: 0.16s; }
.feature-card:nth-child(4) { transition-delay: 0.24s; }
.feature-card:nth-child(5) { transition-delay: 0.32s; }
.feature-card:nth-child(6) { transition-delay: 0.4s; }

.step:nth-child(2) { transition-delay: 0.1s; }
.step:nth-child(3) { transition-delay: 0.2s; }

.oss-card:nth-child(2) { transition-delay: 0.1s; }
.oss-card:nth-child(3) { transition-delay: 0.2s; }