:root {
  --bg: #0b1020;
  --bg-elevated: #131a2e;
  --bg-soft: #1a223b;
  --text: #edf2ff;
  --text-muted: #9ea9c7;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --border: rgba(157, 173, 219, 0.18);
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
  --max-width: 1120px;
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.08), transparent 22%),
    linear-gradient(180deg, #09101c 0%, #0b1020 48%, #0c1222 100%);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
}

.site-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(9, 16, 28, 0.72);
  border-bottom: 1px solid rgba(157, 173, 219, 0.08);
}

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

.brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.nav-links a {
  padding: 0.6rem 0.95rem;
  color: var(--text-muted);
  border-radius: 999px;
  transition: background-color 180ms ease, color 180ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(125, 211, 252, 0.12);
}

main {
  padding: 4.5rem 0 5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem 0 4rem;
}

.hero-copy h1,
.page-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-copy p,
.page-hero p,
.section-intro {
  margin: 0;
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 62ch;
}

.hero-panel,
.panel,
.project-card,
.resume-block,
.contact-panel,
.stat-card {
  background: linear-gradient(180deg, rgba(19, 26, 46, 0.95), rgba(11, 16, 32, 0.95));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 1.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.stat-card {
  padding: 1rem;
}

.stat-card span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-card strong {
  display: block;
  margin-top: 0.5rem;
  font-size: 1.15rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button:hover,
button:hover {
  transform: translateY(-1px);
  border-color: rgba(125, 211, 252, 0.32);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-strong), #0ea5e9);
  color: #03131c;
}

.button-secondary {
  background: rgba(125, 211, 252, 0.08);
  border-color: rgba(125, 211, 252, 0.22);
}

.page-hero {
  margin-bottom: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.stack {
  display: grid;
  gap: 1.25rem;
}

.panel,
.resume-block,
.contact-panel {
  padding: 1.5rem;
}

.resume-block h2,
.panel h2,
.contact-panel h2 {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
}

.resume-entry {
  padding: 1.1rem 0;
  border-top: 1px solid rgba(157, 173, 219, 0.12);
}

.resume-entry:first-of-type {
  border-top: 0;
  padding-top: 0.2rem;
}

.resume-entry h3,
.project-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.resume-meta,
.project-card p,
.muted {
  color: var(--text-muted);
}

.resume-entry ul,
.cert-list,
.contact-list {
  margin: 0.85rem 0 0;
  padding-left: 1.1rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.project-card {
  padding: 1.35rem;
}

.project-card span {
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.1);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

form {
  display: grid;
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.45rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  font: inherit;
  color: var(--text);
  background: rgba(11, 16, 32, 0.9);
  border: 1px solid rgba(157, 173, 219, 0.18);
  border-radius: 16px;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(56, 189, 248, 0.24);
  border-color: rgba(56, 189, 248, 0.45);
}

textarea {
  min-height: 160px;
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.site-footer {
  padding: 0 0 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (max-width: 920px) {
  .hero,
  .grid-2,
  .project-grid {
    grid-template-columns: 1fr;
  }

  main {
    padding-top: 3rem;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .hero-copy h1,
  .page-hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.4rem);
  }
}