:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --text: #1b1b1b;
  --muted: #666a6f;
  --line: #e6e3dd;
  --accent: #0f4c5c;
  --accent-soft: #e9f1f2;
  --shadow: 0 20px 40px rgba(15, 20, 25, 0.08);
  --radius: 12px;
}

[data-theme="dark"] {
  --bg: #0f1113;
  --surface: #15181b;
  --text: #f1f3f5;
  --muted: #a5acb3;
  --line: #242a2f;
  --accent: #c2c7cd;
  --accent-soft: #1d1f22;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .btn {
  color: #0f1113;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Satoshi", "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--line);
}

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

.logo {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.theme-toggle {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 0.35rem 0.9rem;
  border-radius: 10px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  padding: 5rem 0 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

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

.btn {
  padding: 0.8rem 1.6rem;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  box-shadow: none;
}

.hero-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.card-title {
  font-weight: 600;
  margin: 0 0 1rem;
}

.card-list {
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--muted);
}

.card-list li {
  padding: 0.3rem 0;
}

.section {
  padding: 4rem 0;
}

.section.alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
}


.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card h3 {
  margin-top: 0;
}

.card p {
  color: var(--muted);
}

.text-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 500;
}

.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
}

.pill-list li {
  padding: 0.35rem 0.8rem;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 10px;
  font-size: 0.9rem;
}

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

.contact-link {
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.site-footer {
  padding: 2rem 0 3rem;
  text-align: center;
  color: var(--muted);
}

@media (hover: hover) {
  .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 48px rgba(15, 20, 25, 0.12);
  }

  .card:hover {
    transform: translateY(-3px);
    box-shadow: 0 26px 50px rgba(15, 20, 25, 0.12);
  }

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

@media (max-width: 700px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .theme-toggle {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn,
  .btn.ghost {
    width: 100%;
    text-align: center;
  }
}