:root {
  --bg: #050814;
  --surface: rgba(8, 14, 30, 0.65);
  --text: #e8f1ff;
  --muted: #b4c6dd;
  --line: rgba(148, 173, 198, 0.28);
  --accent: #77ffd4;
  --accent-soft: rgba(119, 255, 212, 0.13);
  --max: 1040px;
  --content: 940px;
  --radius: 10px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  font-family: "Manrope", "Segoe UI", -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.72;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -2;
  background:
    radial-gradient(55% 35% at 22% 14%, rgba(79, 238, 170, 0.34), transparent 70%),
    radial-gradient(60% 32% at 82% 12%, rgba(70, 218, 240, 0.26), transparent 72%),
    radial-gradient(64% 40% at 60% 40%, rgba(95, 255, 203, 0.15), transparent 76%),
    linear-gradient(180deg, #04060f 0%, #051022 46%, #071125 100%);
  filter: saturate(112%);
}

body::after {
  z-index: -1;
  background:
    radial-gradient(1px 1px at 14% 18%, rgba(226, 240, 255, 0.55), transparent),
    radial-gradient(1px 1px at 32% 8%, rgba(226, 240, 255, 0.42), transparent),
    radial-gradient(1.2px 1.2px at 58% 22%, rgba(226, 240, 255, 0.48), transparent),
    radial-gradient(1.1px 1.1px at 76% 14%, rgba(226, 240, 255, 0.42), transparent),
    radial-gradient(1px 1px at 88% 30%, rgba(226, 240, 255, 0.3), transparent),
    linear-gradient(to bottom, rgba(2, 7, 15, 0.12), rgba(2, 7, 15, 0.46));
  background-repeat: repeat;
  background-size: 240px 240px, 260px 260px, 280px 280px, 320px 320px, 360px 360px, 100% 100%;
}

.skip-link {
  position: absolute;
  left: -999px;
}

.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
  background: #eef7ff;
  color: #031422;
  padding: var(--space-1) 12px;
  border-radius: 8px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(4, 11, 24, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.top-nav {
  max-width: calc(var(--max) + (var(--space-4) * 2));
  margin: 0 auto;
  padding: 12px var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  justify-content: space-between;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 0.92rem;
  text-transform: uppercase;
}

.top-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.top-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 140ms ease, border-color 140ms ease;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--accent);
  border-bottom-color: color-mix(in srgb, var(--accent) 58%, transparent);
}

.top-nav a.active,
.top-nav a[aria-current="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(5, 16, 31, 0.9);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 11px;
  font: inherit;
  font-weight: 600;
}

.container {
  max-width: var(--content);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) 64px;
}

section {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}

.hero {
  margin-top: 0;
  padding-top: var(--space-2);
  border-top: 0;
}

.hero-layout {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.hero-photo-wrap {
  margin: 0;
  width: 170px;
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  overflow: hidden;
  border: 2px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.26);
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-line {
  margin: 0 0 var(--space-1);
  color: var(--accent);
  font-weight: 650;
  font-size: 0.96rem;
  letter-spacing: 0.015em;
}

h1 {
  margin: 0;
  font-family: "Newsreader", Georgia, "Times New Roman", serif;
  font-size: clamp(2.35rem, 5.6vw, 4rem);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.014em;
  max-width: 20ch;
}

.work-style {
  margin: var(--space-3) 0 0;
  color: #d8e7f8;
  font-size: 1.07rem;
  line-height: 1.66;
  max-width: 66ch;
}

h2 {
  margin: 0 0 var(--space-2);
  font-family: "Newsreader", Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.lead {
  margin: var(--space-3) 0 var(--space-4);
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.76;
  max-width: 72ch;
}

.edu-item {
  display: block;
}

.edu-item + .edu-item {
  margin-top: var(--space-2);
}

.btn {
  display: inline-block;
  text-decoration: none;
  color: #06231f;
  background: var(--accent);
  padding: 11px 14px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.94rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
  transition: background-color 160ms ease, transform 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  background: #94ffdd;
  transform: translateY(-1px);
}

.btn.is-disabled,
.btn[aria-disabled="true"] {
  background: rgba(122, 160, 174, 0.26);
  color: #d4e4f1;
  pointer-events: none;
  cursor: not-allowed;
  transform: none;
}

.cv-cta {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
}

.coming-soon-note {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
}

.btn:focus-visible,
.top-nav a:focus-visible,
.menu-toggle:focus-visible,
.contact-list a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.card {
  border: 0;
  border-left: 2px solid color-mix(in srgb, var(--accent) 35%, var(--line));
  border-radius: 0;
  background: transparent;
  padding: 0 0 0 var(--space-3);
}

.role {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.45;
}

.meta {
  margin: var(--space-1) 0 var(--space-2);
  color: var(--muted);
  font-size: 0.94rem;
}

.bullet-list {
  margin: 0;
  padding-left: 20px;
}

.bullet-list li + li {
  margin-top: var(--space-1);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.chip {
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--line));
  color: #cbfff0;
  border-radius: 999px;
  padding: 5px 10px;
  font-weight: 600;
  font-size: 0.89rem;
}

.contact-list {
  list-style: none;
  margin: var(--space-2) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.contact-list a {
  color: var(--accent);
  transition: color 140ms ease;
  text-underline-offset: 2px;
}

.contact-list a:hover {
  color: #adffe6;
}

#about,
#experience,
#highlights,
#skills,
#projects,
#education,
#contact {
  scroll-margin-top: 88px;
}

@media (max-width: 820px) {
  .top-nav {
    padding: 12px var(--space-2);
  }

  .menu-toggle {
    display: inline-block;
  }

  .top-nav ul {
    position: absolute;
    right: var(--space-2);
    top: 52px;
    background: rgba(8, 16, 34, 0.95);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px;
    display: none;
    width: min(300px, calc(100vw - 32px));
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.07);
  }

  .top-nav ul.open {
    display: grid;
    gap: 12px;
  }

  h1 {
    font-size: clamp(2rem, 9vw, 2.75rem);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .hero-photo-wrap {
    width: 130px;
  }

  h2 {
    font-size: 1.45rem;
  }

  .container {
    padding: var(--space-4) var(--space-2) var(--space-5);
  }

  section {
    margin-top: var(--space-4);
    padding-top: var(--space-3);
  }

  .card {
    padding-left: var(--space-2);
  }
}