:root {
  --bg: #f3f0eb;
  --bg-soft: #faf8f4;
  --text: #27231d;
  --muted: #5a534a;
  --brand: #8d5d3b;
  --brand-deep: #6c4328;
  --line: #ddcfc0;
  --card: #fffdf9;
  --focus: #20666d;
  --radius: 16px;
  --shadow: 0 10px 28px rgba(57, 39, 23, 0.1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #f7f7f5;
  color: var(--text);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  line-height: 1.5;
}

a { color: inherit; }

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

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  background: #fff;
  outline: 2px solid var(--focus);
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

.section {
  padding: 3.5rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(248, 245, 239, 0.82);
  border-bottom: 1px solid rgba(141, 93, 59, 0.15);
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.brand {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  text-decoration: none;
}

.main-nav {
  display: none;
  gap: 0.9rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 0.35rem 0.45rem;
  border-radius: 7px;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: rgba(141, 93, 59, 0.12);
  outline: none;
}

.lang-switch {
  display: inline-flex;
  gap: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem;
  background: #fff;
}

.lang-btn {
  border: 0;
  border-radius: 999px;
  padding: 0.3rem 0.55rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.lang-btn.active {
  background: var(--brand);
  color: #fff;
}

.hero {
  display: grid;
  gap: 2rem;
  align-items: center;
  background: linear-gradient(135deg, rgba(141, 93, 59, 0.08), rgba(122, 151, 166, 0.06));
  border: 1px solid rgba(141, 93, 59, 0.14);
  border-radius: 20px;
  padding: 2rem;
  margin-top: 1.2rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
}

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.2;
}

h1 { font-size: clamp(1.9rem, 4.3vw, 3.4rem); margin: 0.6rem 0; }
h2 { font-size: clamp(1.4rem, 3vw, 2.1rem); margin: 0 0 0.75rem; }
h3 { margin: 0 0 0.5rem; font-size: 1.15rem; }

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 65ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.62rem 1.06rem;
  font-weight: 600;
}

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

.btn-primary:hover { background: var(--brand-deep); }

.btn-secondary {
  border-color: var(--line);
  background: var(--bg-soft);
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.hero-image-wrap {
  margin: 0;
  display: grid;
  place-items: center;
}

.hero-image {
  width: min(320px, 72vw);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 999px;
  border: 8px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  background: transparent;
  padding: 0;
}

.section-intro {
  color: var(--muted);
  margin: 0 0 1rem;
}

.card-grid,
.project-grid,
.poap-grid {
  display: grid;
  gap: 0.95rem;
}

.card,
.project-card,
.cv-box,
.timeline li,
.poap-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 2px 10px rgba(38, 25, 12, 0.04);
}

.project-card h3 a {
  text-decoration: none;
  border-bottom: 1px solid rgba(141, 93, 59, 0.3);
}

.project-meta {
  margin: 0.15rem 0 0.65rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.tags {
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tags li {
  font-size: 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
  color: var(--muted);
}

.poap-item {
  text-align: center;
  min-height: 88px;
  display: grid;
  place-items: center;
  gap: 0.5rem;
}

.poap-status {
  color: var(--muted);
  margin: 0.1rem 0 1rem;
  font-size: 0.92rem;
}

.poap-image {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
}

.poap-title {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  font-weight: 600;
}

.timeline {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.85rem;
}

.timeline li a,
.hackathon-hint {
  color: var(--muted);
}

.timeline li a {
  text-decoration: none;
}

.timeline li a:hover,
.timeline li a:focus-visible {
  text-decoration: underline;
}

.showcase-link {
  display: block;
  margin-top: 0.25rem;
  color: #245c9c !important;
  font-weight: 700;
  border-bottom: 1px solid rgba(36, 92, 156, 0.35);
  width: fit-content;
}

.showcase-link:hover,
.showcase-link:focus-visible {
  color: #1b4677 !important;
}

.hackathon-hint {
  font-size: 0.92rem;
  font-style: italic;
  text-decoration: none;
}

.hackathon-wins {
  display: inline-block;
  margin: 0.2rem 0 0.45rem;
  color: #2f5c37;
  background: rgba(191, 224, 198, 0.38);
  border: 1px solid rgba(120, 168, 130, 0.55);
  border-radius: 999px;
  padding: 0.14rem 0.52rem;
  font-weight: 600;
  font-size: 0.84rem;
  line-height: 1.25;
}

.github-link {
  color: #1f4f84;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 79, 132, 0.35);
}

.github-link:hover,
.github-link:focus-visible {
  color: #173a60;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-decoration: none;
  color: #1f4f84;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
}

.social-icon {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
}

.linkedin-link {
  color: #0a66c2;
}

.linkedin-link:hover,
.linkedin-link:focus-visible {
  color: #084d92;
}

.single-card { max-width: 700px; }

.sol-hero {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  background: linear-gradient(135deg, rgba(141, 93, 59, 0.08), rgba(122, 151, 166, 0.06));
  border: 1px solid rgba(141, 93, 59, 0.14);
  border-radius: 20px;
  padding: 2rem;
  margin-top: 1.2rem;
}

.sol-logo-wrap {
  margin: 0;
  display: grid;
  place-items: center;
}

.sol-logo {
  width: min(300px, 70vw);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 999px;
  border: 8px solid rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.subpage-link-card {
  margin-top: 0.6rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.3rem 0;
  background: rgba(255, 255, 255, 0.35);
}

.footer-row {
  display: flex;
  gap: 0.9rem;
  justify-content: space-between;
  flex-wrap: wrap;
}

.socials {
  display: flex;
  gap: 0.9rem;
  align-items: center;
}

@media (min-width: 760px) {
  .main-nav { display: flex; }
  .hero {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.4rem;
    padding-top: 4.4rem;
  }
  .sol-hero {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.4rem;
  }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .poap-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}