:root {
  --bg-top: #0a1a23;
  --bg-mid: #123742;
  --bg-warm: #cf7e30;
  --ink: #0b1215;
  --text: #f4f6f5;
  --muted: #d4ddd8;
  --card: #f7f1e8;
  --card-text: #1b2d31;
  --line: rgba(244, 246, 245, 0.25);
  --accent: #14c38e;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg-top) 0%, var(--bg-mid) 45%, var(--bg-warm) 120%);
  overflow-x: hidden;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 15% 15%, rgba(20, 195, 142, 0.3), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(255, 206, 122, 0.24), transparent 38%),
    radial-gradient(circle at 20% 80%, rgba(0, 0, 0, 0.32), transparent 45%);
}

.site-header,
main,
.site-footer {
  width: min(1060px, 92vw);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(10, 26, 35, 0.92), rgba(10, 26, 35, 0.6));
  z-index: 10;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-family: "Sora", sans-serif;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.top-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.92;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  opacity: 1;
}

.resume-link {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
}

main {
  display: grid;
  gap: 2.5rem;
  padding: 2.2rem 0 3rem;
}

.hero {
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(130deg, rgba(8, 20, 26, 0.72), rgba(29, 68, 80, 0.5));
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: #ffe3b7;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
  margin: 0 0 0.8rem;
  line-height: 1.14;
}

h1 {
  font-size: clamp(1.9rem, 6vw, 3.2rem);
  max-width: 15ch;
}

h2 {
  font-size: clamp(1.4rem, 4.6vw, 2rem);
}

p {
  margin: 0;
  line-height: 1.6;
  color: var(--muted);
}

.hero p {
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.btn-primary,
.btn-secondary {
  text-decoration: none;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-weight: 700;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.btn-primary {
  background: var(--accent);
  color: #022016;
}

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

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

.panel {
  padding: 1.4rem;
  border-radius: 18px;
  background: rgba(10, 24, 33, 0.62);
  border: 1px solid var(--line);
}

.interest-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 1rem;
  margin-top: 1rem;
}

.interest-intro {
  margin-top: 0.35rem;
}

.interest-card {
  background: var(--card);
  color: var(--card-text);
  border-radius: 18px;
  padding: 0.4rem;
  border: 1px solid rgba(27, 45, 49, 0.16);
  transition: transform 180ms ease, box-shadow 180ms ease;
  cursor: pointer;
  height: fit-content;
}

.interest-card.is-open {
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.16);
}

.interest-toggle {
  appearance: none;
  border: 0;
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--card-text);
  padding: 0.9rem 1rem;
  border-radius: 14px;
  font-family: "Sora", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.interest-card:focus-visible {
  outline: 2px solid rgba(20, 195, 142, 0.85);
  outline-offset: 3px;
}

.interest-toggle::after {
  content: "+";
  font-size: 1.3rem;
  line-height: 1;
}

.interest-toggle[aria-expanded="true"]::after {
  content: "-";
}

.interest-detail {
  padding: 0 1rem 1rem;
}

.interest-detail h4 {
  margin: 0.8rem 0 0.5rem;
  font-family: "Sora", sans-serif;
  font-size: 0.94rem;
}

.tag-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-list li {
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(27, 45, 49, 0.24);
  background: rgba(27, 45, 49, 0.08);
  font-weight: 500;
  font-size: 0.86rem;
}

.interest-card p {
  color: #2a4a4f;
}

.timeline {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 0.8rem;
  align-items: start;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffd28f;
  margin-top: 0.55rem;
  box-shadow: 0 0 0 4px rgba(255, 210, 143, 0.2);
}

.timeline-content {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(8, 20, 26, 0.65);
  padding: 1rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 0 1.6rem;
  border-top: 1px solid var(--line);
}

.site-footer p {
  color: var(--text);
  font-weight: 700;
}

.site-footer a {
  color: #ffe3b7;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise-in 600ms ease forwards;
}

#about {
  animation-delay: 100ms;
}

#interests {
  animation-delay: 180ms;
}

#experience {
  animation-delay: 260ms;
}

@keyframes rise-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 760px) {
  .hero {
    padding: 2.5rem;
  }

  .interest-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .interest-card:hover {
    transform: translateY(-4px);
  }

  .site-footer {
    padding-bottom: 2.4rem;
  }
}

@media (max-width: 600px) {
  .site-header {
    position: static;
    padding-top: 1.25rem;
  }

  .top-nav {
    gap: 0.5rem;
  }

  .top-nav a {
    font-size: 0.86rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}