:root {
  --bg: #0b1220;
  --bg-soft: #131c2f;
  --surface: #162136;
  --surface-2: #1b2a43;
  --text: #e2e8f0;
  --text-muted: #aab6cb;
  --line: #293750;
  --primary: #2dd4bf;
  --primary-strong: #14b8a6;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "DM Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 90% 10%, rgba(15, 118, 110, 0.13), transparent 35%),
    radial-gradient(circle at 10% 80%, rgba(20, 184, 166, 0.1), transparent 40%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
}

.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
}

.narrow {
  max-width: 780px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  background: var(--primary);
  color: #fff;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
}

.skip-link:focus {
  left: 1rem;
  z-index: 999;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-top: 0.65rem;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 58%, transparent);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.9rem;
  gap: 1rem;
  border: 1px solid color-mix(in srgb, var(--line) 82%, #000 18%);
  border-radius: 999px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--surface) 88%, #000 12%), color-mix(in srgb, var(--surface-2) 82%, #000 18%));
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.03em;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 70%, transparent);
}

.primary-nav {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}

.primary-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.48rem 0.84rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--text);
  border-color: color-mix(in srgb, var(--line) 70%, #fff 30%);
  background: color-mix(in srgb, var(--surface) 74%, #000 26%);
}

.mobile-nav-toggle {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
}

.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.mobile-nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.6rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
}

h2 {
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.tagline {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.btn {
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.72rem 1.1rem;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-strong);
}

.btn-secondary {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface);
}

.btn-small {
  padding: 0.55rem 0.85rem;
  font-size: 0.92rem;
}

.hero-card,
.skill-card,
.project-card,
.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 1.35rem;
  background:
    radial-gradient(circle at 110% -10%, rgba(45, 212, 191, 0.2), transparent 45%),
    linear-gradient(170deg, color-mix(in srgb, var(--surface) 88%, #000 12%), color-mix(in srgb, var(--surface-2) 86%, #000 14%));
}

.card-kicker {
  display: inline-flex;
  margin: 0 0 0.5rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.72rem;
  font-weight: 700;
}

.focus-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.72rem;
}

.focus-list li {
  border: 1px solid color-mix(in srgb, var(--line) 72%, #000 28%);
  background: color-mix(in srgb, var(--bg-soft) 64%, transparent);
  border-radius: 12px;
  padding: 0.62rem 0.72rem;
}

.focus-title {
  display: block;
  font-weight: 700;
  font-size: 0.95rem;
}

.focus-desc {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 0.14rem;
}

.focus-tags {
  display: flex;
  gap: 0.46rem;
  flex-wrap: wrap;
  margin-top: 0.88rem;
}

.focus-tags span {
  border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--line) 65%);
  color: color-mix(in srgb, var(--primary) 74%, #fff 26%);
  background: color-mix(in srgb, var(--surface) 74%, #000 26%);
  border-radius: 999px;
  font-size: 0.77rem;
  padding: 0.22rem 0.58rem;
}

.skills-grid,
.projects-grid,
.contact-grid {
  display: grid;
  gap: 1rem;
}

.skills-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.skill-card {
  padding: 1.2rem;
}

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

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

.icon {
  color: var(--primary);
  margin-right: 0.45rem;
}

.projects-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.filter-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-muted);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
}

.filter-btn.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.project-card {
  padding: 1.1rem;
}

.badges {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.badges span {
  border: 1px solid var(--line);
  color: var(--text-muted);
  background: var(--bg-soft);
  border-radius: 999px;
  font-size: 0.84rem;
  padding: 0.22rem 0.58rem;
}

.card-actions {
  display: flex;
  gap: 0.6rem;
}

.contact-grid {
  grid-template-columns: 1.1fr 1fr;
}

.contact-list {
  padding-left: 0;
  list-style: none;
}

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

.contact-form {
  padding: 1rem;
  display: grid;
  gap: 0.65rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  background: var(--bg);
  color: var(--text);
}

input:focus,
textarea:focus,
button:focus,
a:focus {
  outline: 2px solid color-mix(in srgb, var(--primary) 60%, #fff);
  outline-offset: 2px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0;
  color: var(--text-muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 990px) {
  .hero-grid,
  .projects-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .site-header {
    padding-top: 0;
  }

  .nav-wrap {
    border-radius: 14px;
    padding: 0.6rem 0.7rem;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 4%;
    right: 4%;
    background: color-mix(in srgb, var(--surface-2) 88%, #000 12%);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0.65rem;
    display: none;
    flex-direction: column;
    box-shadow: var(--shadow);
  }

  .primary-nav.open {
    display: flex;
  }

  .section {
    padding: 4rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
    animation: none !important;
  }

  .reveal,
  .reveal.show {
    opacity: 1;
    transform: none;
  }
}