@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;700&display=swap");

:root {
  --bg: #f2f5f2;
  --surface: #ffffff;
  --ink: #101c1a;
  --muted: #4a5d58;
  --line: #d5dfdb;
  --accent: #0f766e;
  --accent-2: #1f9d8f;
  --accent-soft: #d2f0eb;
  --shadow: 0 18px 40px rgba(17, 34, 31, 0.09);
  --radius: 22px;
  --radius-sm: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 0%, #dff5e9 0%, transparent 30%),
    radial-gradient(circle at 100% 10%, #e4eef9 0%, transparent 30%),
    var(--bg);
  line-height: 1.65;
}

.background-shape {
  position: fixed;
  z-index: -1;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.5;
}

.shape-a {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -140px;
  background: #b2f1d9;
}

.shape-b {
  width: 360px;
  height: 360px;
  bottom: -120px;
  left: -120px;
  background: #c9dcfb;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 64px);
  background: rgba(242, 245, 242, 0.85);
  border-bottom: 1px solid rgba(16, 28, 26, 0.08);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  text-decoration: none;
}

.menu-toggle {
  display: none;
  border: 0;
  background: var(--surface);
  border-radius: 999px;
  padding: 10px 14px;
  font: inherit;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.site-nav {
  display: flex;
  gap: 18px;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
}

main {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: 24px 0 96px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  padding-top: clamp(18px, 4vw, 40px);
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.83rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: "IBM Plex Mono", "Consolas", monospace;
}

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

h1 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.lead {
  margin: 0;
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.btn-primary {
  color: #ffffff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 20px rgba(15, 118, 110, 0.25);
}

.btn-ghost {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line);
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 0.96rem;
}

.meta-list a {
  color: var(--accent);
}

.hero-photo-wrap {
  display: flex;
  justify-content: center;
}

.hero-photo-card {
  width: min(480px, 100%);
  background: linear-gradient(150deg, #e3f4f0, #eaf1fa);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow);
}

.hero-photo-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius) - 10px);
}

.content-section {
  margin-top: clamp(72px, 9vw, 110px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 20px;
  box-shadow: var(--shadow);
}

.panel h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
}

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

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 22px;
  box-shadow: var(--shadow);
}

.project-card p {
  margin-top: 0;
  color: var(--muted);
}

.stack-line {
  margin-top: 12px;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.84rem;
  color: #275850;
}

.project-card a {
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.project-card a:hover,
.project-card a:focus-visible {
  text-decoration: underline;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  border-left: 4px solid var(--accent-soft);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 20px;
  box-shadow: var(--shadow);
}

.timeline-meta {
  margin: -4px 0 10px;
  color: #2f7d73;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.84rem;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.chip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip-list li {
  padding: 9px 14px;
  border-radius: 999px;
  background: #e8f6f3;
  border: 1px solid #c8e8e2;
  color: #20584f;
  font-size: 0.9rem;
  font-weight: 500;
}

.contact {
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, #eef6ff 0%, #effaf7 50%, #f4fbf8 100%);
  border: 1px solid #d7e8e3;
  box-shadow: var(--shadow);
}

.contact-copy {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.site-footer {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: 0 0 46px;
  color: #5a6d67;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    right: 20px;
    top: 76px;
    width: min(220px, calc(100vw - 40px));
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    gap: 10px;
  }

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

  .site-nav a {
    padding: 8px 4px;
  }
}