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

:root {
  --bg: #0b0b0b;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --text-primary: #e8e8e8;
  --text-secondary: #888;
  --text-muted: #555;
  --accent: #e8e8e8;
  --border: #222;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* ---- Layout ---- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Navigation ---- */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem 0;
  background: rgba(11, 11, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 3.2rem;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

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

/* ---- Hero ---- */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
}

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

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

/* ---- Section base ---- */

section {
  padding: 8rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 3rem;
}

/* ---- Featured project (Rdy Jo) ---- */

.featured {
  border-top: 1px solid var(--border);
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.featured-info h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.featured-info p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
}

.featured-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.featured-image .phone-frame {
  width: 280px;
  border-radius: 2rem;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.featured-image .phone-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.featured-image .placeholder {
  width: 280px;
  height: 560px;
  border-radius: 2rem;
  border: 1px dashed var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* ---- Projects grid ---- */

.projects {
  border-top: 1px solid var(--border);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  transition: border-color 0.2s ease;
}

.project-card:hover {
  border-color: #333;
}

.project-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.project-card .badge {
  font-size: 0.65rem;
}

.platforms {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.platform-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* ---- Contact / Footer ---- */

footer {
  border-top: 1px solid var(--border);
  padding: 4rem 0;
}

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

.footer-content p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-content a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}

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

/* ---- Animations ---- */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .featured-card {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .featured-image {
    order: -1;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .nav-links {
    gap: 1.25rem;
  }

  section {
    padding: 5rem 0;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}