:root {
  color-scheme: dark;
  --bg: #05060a;
  --panel: #0f111a;
  --accent: #5b7cfa;
  --glow: #79ffe1;
  --text: #f4f7ff;
  --muted: rgba(244, 247, 255, 0.65);
  --border: rgba(255, 255, 255, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, rgba(91, 124, 250, 0.12), transparent 50%), var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

main {
  padding: 0 5vw 10vh;
  display: flex;
  flex-direction: column;
  gap: 8rem;
}

/* ==========================================
   HEADER
   ========================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 5vw;
  background: rgba(5, 6, 10, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  object-fit: cover;
}

.brand-mark--hero {
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.brand-mark--compact {
  width: 28px;
  height: 28px;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-brand-text {
  display: flex;
  flex-direction: column;
}

.hero-brand-name {
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text);
  margin-bottom: 0.25rem;
}

.hero-brand-tagline {
  color: var(--muted);
  font-size: 0.875rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

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

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

/* ==========================================
   BUTTONS & LINKS
   ========================================== */

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.primary-btn {
  background: var(--accent);
  color: var(--text);
}

.primary-btn:hover {
  transform: translateY(-2px);
  background: #4a6ae8;
}

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

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

/* ==========================================
   TYPOGRAPHY
   ========================================== */

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--glow);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-top: 6rem;
  min-height: 80vh;
}

.hero-copy p {
  color: var(--muted);
  max-width: 44ch;
  margin-top: 1rem;
}

.hero-copy h1 {
  margin-top: 0.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-scroll-btn {
  position: relative;
  overflow: hidden;
}

.hero-scroll-arrow {
  display: inline-block;
  margin-left: 0.35rem;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.hero-scroll-btn.is-active .hero-scroll-arrow {
  opacity: 1;
  transform: translateY(0);
}

.hero-visual {
  min-height: 480px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: radial-gradient(circle at 30% 30%, rgba(121, 255, 225, 0.08), transparent 60%);
  overflow: hidden;
  position: relative;
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */

.projects {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.section-header {
  max-width: 500px;
}

.section-desc {
  color: var(--muted);
  margin-top: 0.75rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--panel);
  padding: 1.75rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.2s ease;
}

.project-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.project-card--coming {
  opacity: 0.5;
}

.project-number {
  font-family: 'JetBrains Mono', 'SF Mono', monospace;
  font-size: 0.7rem;
  color: var(--glow);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.project-card h3 {
  margin: 0.25rem 0;
}

.project-card p {
  color: var(--muted);
  font-size: 0.875rem;
  flex-grow: 1;
  margin-bottom: 0.5rem;
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.project-link:hover {
  color: var(--glow);
}

.project-link svg {
  width: 14px;
  height: 14px;
}

.project-status {
  color: var(--muted);
  font-size: 0.75rem;
  font-style: italic;
  margin-top: 0.5rem;
}

.projects-visual {
  min-height: 280px;
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: radial-gradient(circle at 70% 50%, rgba(91, 124, 250, 0.06), transparent 60%);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
  background: var(--panel);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 3rem;
}

.about-content {
  max-width: 700px;
}

.about-content > p {
  color: var(--muted);
  margin-top: 0.75rem;
  max-width: 55ch;
}

.about-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}

.about-point h3 {
  color: var(--glow);
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.about-point p {
  color: var(--muted);
  font-size: 0.875rem;
}

/* ==========================================
   FOLLOW SECTION
   ========================================== */

.follow {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2rem;
  padding: 3rem 0;
}

.follow-content {
  max-width: 400px;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.875rem 1.25rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.social-link:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link--youtube {
  border-color: rgba(255, 92, 92, 0.4);
}

.social-link--youtube:hover {
  border-color: transparent;
  background-image: linear-gradient(120deg, #ff4d4d, #c31432);
  color: #fff;
}

.social-link--youtube svg {
  transition: color 0.2s ease;
}

.social-link--youtube:hover svg {
  color: #ffe6e6;
}

.social-link--tiktok {
  position: relative;
  border-style: dashed;
  opacity: 0.5;
}

.social-link--locked {
  pointer-events: none;
  cursor: not-allowed;
  color: rgba(244, 247, 255, 0.5);
  transform: none !important;
}

.social-link--locked svg {
  color: rgba(244, 247, 255, 0.4);
}

.social-link--locked:hover {
  border-color: rgba(244, 247, 255, 0.2);
  background: var(--panel);
}

.social-link--tiktok:hover {
  border-color: #00f2ea;
  transform: none;
}

.social-link--tiktok:hover svg {
  color: #00f2ea;
}

.social-lock {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.85rem;
}

.social-link--github {
  border-color: rgba(240, 240, 240, 0.3);
}

.social-link--github:hover {
  border-color: transparent;
  background-image: linear-gradient(120deg, #24292e, #57606a);
}

.social-link--github:hover svg {
  color: #f4f7ff;
}

.social-link--instagram {
  border-color: rgba(212, 94, 167, 0.5);
}

.social-link--instagram:hover {
  border-color: transparent;
  background-image: linear-gradient(120deg, #f77737, #c13584, #5851db);
  color: #fff;
}

.social-link--instagram svg {
  transition: color 0.2s ease;
}

.social-link--instagram:hover svg {
  color: #ffe6ff;
}

.contact-note {
  width: 100%;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.social-footnote {
  width: 100%;
  text-align: center;
  color: rgba(244, 247, 255, 0.6);
  font-size: 0.8rem;
  font-style: italic;
}

/* ==========================================
   FOOTER
   ========================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 5vw;
  color: var(--muted);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding-top: 4rem;
  }

  .hero-visual {
    min-height: 360px;
  }

  .about-points {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 720px) {
  main {
    gap: 5rem;
  }

  .site-header {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1.5rem;
  }

  .about {
    padding: 2rem 1.5rem;
  }

  .hero-visual,
  .projects-visual {
    min-height: 280px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .primary-btn,
  .ghost-btn {
    width: 100%;
    justify-content: center;
  }

  .social-links {
    flex-direction: column;
    width: 100%;
  }

  .social-link {
    justify-content: center;
  }
}