:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-alt: #eef3f9;
  --text: #1d2939;
  --muted: #526072;
  --border: #d7e0ea;
  --accent: #166534;
  --accent-2: #0f766e;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
  --radius: 22px;
  --radius-sm: 14px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 251, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(215, 224, 234, 0.8);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-nav a {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  color: var(--muted);
}

.site-nav a.active,
.site-nav a:hover {
  background: var(--surface);
  color: var(--text);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 0.6rem 0.85rem;
  cursor: pointer;
}

.hero,
.page-hero {
  padding: 4.5rem 0 2rem;
}

.hero-grid,
.two-column,
.feature-card,
.contact-card,
.layout-split {
  display: grid;
  gap: 1.5rem;
}

.hero-grid {
  grid-template-columns: 1.6fr 1fr;
  align-items: start;
}

.hero-copy h1,
.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.12;
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 62ch;
}

.lead.narrow {
  max-width: 52rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-2);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.82rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
}

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

.btn-secondary {
  background: var(--surface);
  border-color: var(--border);
}

.btn:hover {
  transform: translateY(-1px);
}

.is-disabled {
  opacity: 0.65;
  pointer-events: none;
}

.hero-card,
.info-card,
.detail-panel,
.feature-card,
.contact-card,
.project-card,
.compact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card,
.info-card,
.detail-panel,
.contact-card {
  padding: 1.4rem;
}

.hero-card h2,
.info-card h3,
.feature-panel h3,
.detail-panel h2 {
  margin-top: 0;
}

.quick-points,
.clean-list {
  padding-left: 1.15rem;
  margin: 1rem 0 0;
}

.quick-points li,
.clean-list li {
  margin-bottom: 0.45rem;
}

.mini-stats {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.mini-stats strong {
  display: block;
  font-size: 1.05rem;
}

.mini-stats span,
.stack-list span,
.meta-row span,
.project-type,
.project-status {
  color: var(--muted);
}

.section {
  padding: 2rem 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(238,243,249,0.8), rgba(246,248,251,0));
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2,
.list-title {
  margin: 0.1rem 0 0;
  font-size: clamp(1.55rem, 3.5vw, 2.25rem);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: #edfdf3;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  border: 1px solid #ccefd8;
}

.feature-card {
  grid-template-columns: 1.4fr 1fr;
  padding: 1.5rem;
}

.feature-text {
  font-size: 1.08rem;
  margin-top: 0;
}

.stack-list,
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.stack-list span,
.meta-row span {
  background: var(--surface-alt);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  font-size: 0.92rem;
}

.two-column,
.layout-split {
  grid-template-columns: 1.25fr 0.95fr;
}

.contact-card {
  grid-template-columns: 1.4fr auto;
  align-items: center;
}

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

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

.project-card,
.compact-card {
  padding: 1.25rem;
}

.project-card {
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.project-card:hover,
.project-card.is-active {
  transform: translateY(-2px);
  border-color: #9fc8b0;
}

.project-card h3,
.compact-card h3 {
  margin-top: 0;
  margin-bottom: 0.55rem;
}

.project-summary,
.text-link,
.detail-panel p,
.compact-card p,
.project-card p {
  color: var(--muted);
}

.project-type,
.project-status {
  display: inline-block;
  font-size: 0.86rem;
  margin-bottom: 0.7rem;
  font-weight: 700;
}

.detail-panel {
  position: sticky;
  top: 92px;
  align-self: start;
}

.detail-panel .button-row {
  margin-top: 1.3rem;
}

.text-link {
  font-weight: 700;
}

.site-footer {
  padding: 1.3rem 0 2rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .feature-card,
  .two-column,
  .layout-split,
  .contact-card,
  .project-grid,
  .project-grid.compact {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    position: static;
  }
}

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

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 1rem;
    right: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.8rem;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }

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

  .section-heading {
    align-items: start;
    flex-direction: column;
  }
}