:root {
  --bg: #07070c;
  --bg-elevated: #0f0f16;
  --bg-card: #12121c;
  --text: #e8e8f0;
  --text-muted: #8b8ba3;
  --neon: #ff2d95;
  --neon-soft: #ff6bcb;
  --neon-glow: rgba(255, 45, 149, 0.45);
  --border: rgba(255, 45, 149, 0.2);
  --font: "Outfit", system-ui, sans-serif;
  --mono: "JetBrains Mono", monospace;
  --radius: 14px;
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

.glow-1 {
  width: 480px;
  height: 480px;
  background: var(--neon-glow);
  top: -120px;
  right: -80px;
  opacity: 0.5;
}

.glow-2 {
  width: 360px;
  height: 360px;
  background: rgba(255, 107, 203, 0.25);
  bottom: 20%;
  left: -100px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  background: rgba(7, 7, 12, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1.15rem;
}

.logo-mark {
  font-family: var(--mono);
  color: var(--neon);
  font-size: 0.95rem;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--neon-soft);
}

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

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--neon);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.875rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon), var(--neon-soft));
  color: #0a0a0f;
  box-shadow: 0 0 28px var(--neon-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--neon-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--neon);
  color: var(--neon-soft);
}

/* Hero */
.hero {
  position: relative;
  z-index: 1;
  min-height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) clamp(1.25rem, 4vw, 3rem) 2rem;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px var(--neon);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.gradient-text {
  background: linear-gradient(90deg, var(--neon), var(--neon-soft), #ffb3e0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 2rem;
}

.hero-sub strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 0;
}

/* Sections */
.section {
  position: relative;
  z-index: 1;
  padding: 2.5rem clamp(1.25rem, 4vw, 3rem);
  max-width: 1100px;
  margin: 0 auto;
}

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(255, 45, 149, 0.03), transparent);
}

.section-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--neon);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  max-width: 520px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.about-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tags li {
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--neon-soft);
  font-family: var(--mono);
}

.about-card {
  position: relative;
  padding: 1.5rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.card-glow {
  position: absolute;
  top: -50%;
  right: -30%;
  width: 200px;
  height: 200px;
  background: var(--neon-glow);
  filter: blur(60px);
  opacity: 0.6;
}

.code-block {
  position: relative;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.7;
  overflow-x: auto;
}

.c-keyword { color: var(--neon); }
.c-prop { color: var(--neon-soft); }
.c-str { color: #a8e6cf; }
.c-bool { color: #7ec8ff; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  padding: 2rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 45, 149, 0.45);
  box-shadow: 0 12px 40px rgba(255, 45, 149, 0.12);
}

.card-featured {
  border-color: var(--neon);
  box-shadow: 0 0 32px rgba(255, 45, 149, 0.15);
}

.card-icon {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--neon);
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

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

/* Timeline */
.timeline {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 560px;
}

.timeline li {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--neon);
  color: var(--neon);
  font-family: var(--mono);
  font-weight: 600;
}

.timeline h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.timeline p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* CTA */
.cta-block {
  padding-bottom: 3rem;
}

.cta-inner {
  text-align: center;
  padding: 3.5rem 2rem;
  background: var(--bg-card);
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--neon-glow), transparent 60%);
  opacity: 0.35;
  pointer-events: none;
}

.cta-inner h2 {
  position: relative;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 0.75rem;
}

.cta-inner > p {
  position: relative;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.cta-actions {
  position: relative;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.cta-note {
  position: relative;
  margin-top: 1.25rem !important;
  font-size: 0.75rem !important;
  opacity: 0.6;
}

/* Footer */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-sub {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  opacity: 0.6;
}

/* Mobile */
@media (max-width: 900px) {
  .about-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .header-cta {
    display: none;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}