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

:root {
  --hero-bg: #1d2b3a;
  --accent: #4f8ef7;
  --text: #1a1a2e;
  --muted: #6b7280;
  --surface: #ffffff;
  --surface-alt: #f8f9fb;
  --border: #e5e7eb;
  --radius: 12px;
  --max-width: 800px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--surface);
}

/* ── Layout ── */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 64px 0;
}

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

/* ── Hero ── */

.hero {
  background: var(--hero-bg);
  color: #fff;
  padding: 80px 0 72px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero .headline {
  font-size: 1.15rem;
  color: #a8bcd4;
  margin-bottom: 6px;
}

.hero .location {
  font-size: 0.9rem;
  color: #6d8aa8;
  margin-bottom: 28px;
}

.hero-links {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.hero-links a {
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  padding: 8px 22px;
  font-size: 0.9rem;
  transition: background 0.15s, border-color 0.15s;
}

.hero-links a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

/* ── Section headings ── */

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: var(--text);
}

/* ── About ── */

#about p {
  font-size: 1.05rem;
  color: #374151;
  max-width: 660px;
}

/* ── Cards ── */

.cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
}

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

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.badge {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 99px;
}

.badge.current {
  background: #dcfce7;
  color: #166534;
}

.badge.award {
  background: #fef9c3;
  color: #854d0e;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  font-size: 0.75rem;
}

.card-meta {
  margin-bottom: 10px;
}

.role {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 2px;
}

.dates {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.desc {
  font-size: 0.92rem;
  color: #6b7280;
  margin-bottom: 10px;
}

.tags {
  font-size: 0.78rem;
  color: #9ca3af;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 4px;
}

/* ── Timeline (experience list) ── */

.timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Skills ── */

.skill-grid {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-grid li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
}

/* ── App card ── */

.app-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.app-icon {
  font-size: 2.5rem;
  line-height: 1;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--surface-alt);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-info {
  flex: 1;
}

.app-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.app-store {
  margin-top: 10px;
}

.coming-soon {
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

/* ── Contact ── */

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
}

.contact-label {
  width: 80px;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.contact-list a {
  color: var(--accent);
  text-decoration: none;
}

.contact-list a:hover {
  text-decoration: underline;
}

/* ── Footer ── */

footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

/* ── Responsive ── */

@media (max-width: 600px) {
  section {
    padding: 48px 0;
  }

  .hero {
    padding: 60px 0 52px;
  }

  .app-card {
    flex-direction: column;
  }

  .contact-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }
}