/* ── Tokens ── */
:root {
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --blue-mid: #bfdbfe;
  --slate-dark: #1e293b;
  --slate-mid: #475569;
  --slate-light: #64748b;
  --border: #cbd5e1;
  --bg: #f8fafc;
  --white: #ffffff;
  --radius: 10px;
  --font-body: 'DM Sans', Arial, sans-serif;
  --font-mono: 'DM Mono', monospace;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  max-width: 900px;
  margin: auto;
  padding: 30px;
  background-color: var(--bg);
  color: var(--slate-dark);
  line-height: 1.7;
}

a {
  color: var(--blue);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--blue-light);
  color: var(--blue);
  padding: 1px 5px;
  border-radius: 4px;
}

/* ── Header ── */
header {
  text-align: center;
  margin-bottom: 50px;
  padding: 48px 24px 40px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), #60a5fa);
}

.header-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-light);
  margin-bottom: 12px;
}

h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--slate-dark);
}

.tagline {
  font-size: 1rem;
  color: var(--slate-mid);
  margin: 0 0 24px;
}

nav {
  margin-top: 4px;
}
nav a {
  margin: 0 12px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue);
  letter-spacing: 0.01em;
}
nav a:hover { text-decoration: underline; }

/* ── Section Headings ── */
h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--blue);
  margin-top: 50px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blue-mid);
  letter-spacing: -0.01em;
}

h3 {
  margin: 8px 0 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-light);
  margin: 0 0 10px;
}

/* ── Skills Grid ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 4px;
}

.skill-group {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.skill-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.skill-group li {
  margin-bottom: 6px;
  font-size: 0.95rem;
  color: var(--slate-dark);
}

.skill-group li::before {
  content: '→ ';
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 0.8em;
}

/* ── Project Cards ── */
.project-card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-top: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.project-card:hover {
  box-shadow: 0 6px 20px rgba(37,99,235,0.1);
  transform: translateY(-2px);
}

.project-card.featured {
  border: 2px solid var(--blue);
  background-color: var(--blue-light);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  align-items: center;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--blue);
  color: var(--white);
  padding: 2px 8px;
  border-radius: 4px;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--white);
  color: var(--slate-mid);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
}

.project-card p {
  font-size: 0.95rem;
  color: var(--slate-mid);
  margin: 0 0 14px;
}

.project-card a {
  font-size: 0.9rem;
  font-weight: 600;
}

/* ── Contact ── */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.contact-links a {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  transition: border-color 0.2s;
  text-decoration: none;
}

.contact-links a:hover {
  border-color: var(--blue);
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-light);
  min-width: 70px;
}

.contact-value {
  font-size: 0.95rem;
  color: var(--blue);
  font-weight: 500;
}

/* ── Footer ── */
footer {
  margin-top: 50px;
  text-align: center;
  font-size: 13px;
  color: var(--slate-light);
  font-family: var(--font-mono);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ── Responsive ── */
@media (max-width: 600px) {
  body { padding: 16px; }
  h1 { font-size: 1.8rem; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
}