:root {
  --bg: #0b0f14;
  --bg-elevated: #121820;
  --bg-card: #151c26;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8edf4;
  --text-muted: #8b9cb3;
  --accent: #3dd6c6;
  --accent-dim: rgba(61, 214, 198, 0.15);
  --accent-hover: #5ce4d6;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(61, 214, 198, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(99, 130, 255, 0.08), transparent),
    linear-gradient(180deg, #0b0f14 0%, #0d1219 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, black 0%, transparent 70%);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 20, 0.75);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo:hover {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

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

/* Hero */
.hero {
  padding: 5rem 0 4rem;
}

.hero-eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(61, 214, 198, 0.25);
  border-radius: 999px;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-lead {
  max-width: 38rem;
  margin: 0 0 2rem;
  font-size: 1.15rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #062420;
  background: var(--accent);
}

.btn-primary:hover {
  color: #062420;
  background: var(--accent-hover);
}

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

.btn-ghost:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.15);
}

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

.btn-outline:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
}

/* Projects section */
.projects {
  padding: 2rem 0 5rem;
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-heading p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.project-card:hover {
  border-color: rgba(61, 214, 198, 0.3);
  transform: translateY(-3px);
}

.project-card-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.lang-badge {
  padding: 0.25rem 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  border-radius: 6px;
  letter-spacing: 0.02em;
}

.lang-javascript { color: #f7df1e; background: rgba(247, 223, 30, 0.12); }
.lang-python { color: #5ba4e5; background: rgba(55, 118, 171, 0.18); }
.lang-go { color: #00add8; background: rgba(0, 173, 216, 0.15); }
.lang-html { color: #e34f26; background: rgba(227, 79, 38, 0.15); }

.live-badge {
  padding: 0.25rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 6px;
}

.project-name {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.project-name a {
  color: var(--text);
}

.project-name a:hover {
  color: var(--accent);
}

.project-desc {
  flex: 1;
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}

.project-tags li {
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

/* About */
.about {
  padding: 3rem 0 5rem;
  border-top: 1px solid var(--border);
}

.about h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.about p {
  max-width: 42rem;
  margin: 0;
  color: var(--text-muted);
}

.about code {
  font-family: var(--mono);
  font-size: 0.88em;
  padding: 0.15rem 0.4rem;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
}

/* Footer */
.site-footer {
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-github {
  font-family: var(--mono);
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .hero {
    padding-top: 3rem;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}