:root {
  --bg: #0a0e14;
  --bg-alt: #0f1420;
  --surface: #131926;
  --border: #232b3d;
  --text: #e6ebf2;
  --text-dim: #8b96a8;
  --accent: #3ee6b4;
  --accent-dim: #2bb890;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --max-width: 46rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 1.75rem;
}

.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

/* Hero */
.hero {
  padding-block: 6rem 5rem;
}

.hero-inner {
  text-align: left;
}

.eyebrow {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  font-weight: 700;
  margin: 0;
  line-height: 1.1;
  color: var(--text);
}

.tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-dim);
  margin: 0.75rem 0 2.25rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #06110d;
}

.btn-primary:hover {
  background: var(--accent-dim);
}

.btn-outline {
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Sections */
.section {
  padding-block: 4.5rem;
  border-top: 1px solid var(--border);
}

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 2rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.section-number {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 500;
}

.section-body p {
  color: var(--text-dim);
  margin: 0 0 1rem;
  max-width: 40rem;
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.75rem;
}

.card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.4rem;
}

.card-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.card-meta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(62, 230, 180, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.card-subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

.card p {
  color: var(--text-dim);
  margin: 0;
}

.project-card p {
  margin-bottom: 0.75rem;
}

.tech-stack {
  font-size: 0.85rem;
  color: var(--accent-dim);
  font-family: var(--font-display);
}

.project-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.project-link:hover {
  text-decoration: underline;
}

/* Contact */
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem 1.5rem;
  text-decoration: none;
  min-width: 12rem;
  transition: border-color 0.15s ease;
}

.contact-link:hover {
  border-color: var(--accent);
}

.contact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.contact-value {
  font-family: var(--font-display);
  color: var(--text);
  font-weight: 500;
}

/* Footer */
.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--border);
}

.site-footer p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0;
  text-align: center;
}

@media (max-width: 560px) {
  .site-nav {
    gap: 1.1rem;
  }

  .site-nav a {
    font-size: 0.8rem;
  }

  .hero {
    padding-block: 4rem 3rem;
  }
}