:root {
  --bg: #f4f7fb;
  --bg-strong: #edf2f8;
  --surface: #ffffff;
  --surface-alt: #f7faff;
  --text: #142742;
  --text-soft: #5f7088;
  --text-soft-2: #73839a;
  --primary: #153865;
  --primary-strong: #0f2948;
  --primary-soft: #dce8f6;
  --primary-soft-2: rgba(220, 232, 246, 0.78);
  --border: #d8e2ee;
  --border-strong: #c5d4e5;
  --shadow-sm: 0 10px 26px rgba(17, 34, 68, 0.06);
  --shadow-md: 0 18px 46px rgba(17, 34, 68, 0.1);
  --shadow-lg: 0 28px 70px rgba(17, 34, 68, 0.16);
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-xl: 34px;
  --max-width: 1240px;
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(221, 232, 246, 0.5), transparent 34%),
    linear-gradient(180deg, #f9fbfe 0%, var(--bg) 100%);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

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

main {
  width: 100%;
  padding: 0 0 88px;
}

.container {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
}

.section {
  padding: 34px 0 0;
}

.section-tight {
  padding-top: 0;
}

.section-surface {
  padding-top: 34px;
}

.section-header {
  max-width: 820px;
  margin-bottom: 24px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid #c7d9ef;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text);
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.35rem, 4vw, 4rem);
  line-height: 1.04;
}

h2 {
  font-size: clamp(1.65rem, 2.5vw, 2.45rem);
  line-height: 1.1;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.08rem;
  line-height: 1.25;
  margin-bottom: 10px;
}

p {
  margin: 0 0 14px;
  color: var(--text-soft);
  font-size: 1rem;
}

ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text-soft);
}

li + li {
  margin-top: 10px;
}

strong {
  color: var(--text);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(249, 251, 254, 0.84);
  border-bottom: 1px solid rgba(210, 221, 235, 0.92);
}

.nav-shell {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--primary), #1d4f89);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.brand-text {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.15;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  padding: 11px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.94rem;
  font-weight: 700;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  transform: translateY(-1px);
  outline: none;
}

.nav-link-active {
  background: var(--surface);
  color: var(--primary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* Hero */

.project-hero {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  border-bottom: 1px solid rgba(212, 223, 236, 0.9);
  background: linear-gradient(180deg, #eef4fb 0%, #f7faff 100%);
}

.project-hero-media {
  position: absolute;
  inset: 0;
}

.project-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(95deg, rgba(10, 29, 54, 0.88) 0%, rgba(10, 29, 54, 0.72) 34%, rgba(10, 29, 54, 0.28) 68%, rgba(10, 29, 54, 0.12) 100%);
}

.project-hero-content {
  position: relative;
  z-index: 2;
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: end;
  gap: 28px;
  padding-top: 88px;
  padding-bottom: 52px;
}

.hero-copy {
  max-width: 760px;
}

.hero-copy h1 {
  color: #ffffff;
  margin-bottom: 18px;
  text-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
}

.hero-lead {
  color: rgba(245, 249, 255, 0.96);
  font-size: 1.08rem;
  line-height: 1.72;
  max-width: 680px;
  margin-bottom: 14px;
}

.hero-support {
  color: rgba(234, 241, 250, 0.9);
  font-size: 0.99rem;
  line-height: 1.72;
  max-width: 670px;
  margin-bottom: 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-size: 0.96rem;
  font-weight: 800;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  cursor: pointer;
}

.button-primary {
  background: #ffffff;
  color: var(--primary-strong);
  box-shadow: 0 12px 30px rgba(10, 30, 56, 0.2);
}

.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(10, 30, 56, 0.24);
  outline: none;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.09);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
  outline: none;
}

/* Hero summary card */

.hero-summary-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(214, 224, 236, 0.98);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 28px 26px;
  backdrop-filter: blur(16px);
  align-self: end;
}

.summary-label {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid #c7d9ef;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.summary-item + .summary-item {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(216, 226, 238, 0.95);
}

.summary-key {
  display: block;
  margin-bottom: 6px;
  color: var(--text-soft-2);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.summary-value {
  display: block;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.45;
}

/* Metrics */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: -56px;
  position: relative;
  z-index: 5;
}

.metric-card {
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(214, 224, 236, 0.98);
  border-radius: 22px;
  padding: 24px 22px;
  box-shadow: var(--shadow-md);
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.metric-value {
  display: block;
  color: var(--primary);
  font-size: clamp(1.55rem, 2vw, 2.2rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 12px;
}

.metric-label {
  display: block;
  color: var(--text-soft);
  font-size: 0.96rem;
  line-height: 1.45;
}

/* Cards / grids */

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.content-card,
.capability-card,
.figure-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(214, 224, 236, 0.98);
  box-shadow: var(--shadow-sm);
}

.content-card {
  border-radius: 24px;
  padding: 28px;
}

.content-card p:last-child,
.content-card ul:last-child {
  margin-bottom: 0;
}

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

.capability-card {
  border-radius: 22px;
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.capability-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(17, 34, 68, 0.1);
  border-color: var(--border-strong);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid #cadcf0;
  font-size: 0.8rem;
  font-weight: 800;
}

/* Figure gallery */

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

.figure-card {
  border-radius: 22px;
  overflow: hidden;
}

.figure-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #dfe8f2;
}

.figure-caption {
  padding: 18px 18px 20px;
}

.figure-caption h3 {
  margin-bottom: 6px;
}

.figure-caption p {
  margin: 0;
  font-size: 0.93rem;
}

/* Links */

.project-links {
  margin-top: 12px;
}

.project-links a {
  color: var(--primary);
  font-weight: 800;
}

.project-links a:hover,
.project-links a:focus-visible {
  color: var(--primary-strong);
  text-decoration: underline;
  outline: none;
}

/* Footer */

.site-footer {
  margin-top: 54px;
  background: rgba(248, 251, 255, 0.88);
  border-top: 1px solid rgba(212, 223, 236, 0.95);
}

.footer-shell {
  padding: 28px 0 42px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 28px;
}

.footer-shell p {
  margin: 12px 0 0;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--primary);
  font-weight: 800;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  text-decoration: underline;
  outline: none;
}

/* Responsive */

@media (max-width: 1120px) {
  .project-hero-content {
    grid-template-columns: 1fr;
    align-items: end;
  }

  .hero-summary-card {
    max-width: 520px;
  }

  .metrics-grid,
  .split-grid,
  .capabilities-grid,
  .image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metrics-grid {
    margin-top: 26px;
  }
}

@media (max-width: 860px) {
  .container {
    width: min(var(--max-width), calc(100% - 28px));
  }

  .nav-shell {
    min-height: 72px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 12px 0;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 6px;
  }

  .nav-link {
    padding: 9px 12px;
    font-size: 0.9rem;
  }

  .project-hero {
    min-height: 560px;
  }

  .project-hero-content {
    min-height: 560px;
    padding-top: 84px;
    padding-bottom: 32px;
  }

  .hero-copy,
  .hero-summary-card {
    max-width: 100%;
  }

  .split-grid,
  .capabilities-grid,
  .image-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .content-card,
  .capability-card {
    padding: 22px;
  }

  .hero-summary-card {
    padding: 24px 22px;
  }

  .footer-shell {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: clamp(2rem, 10vw, 2.6rem);
  }

  h2 {
    font-size: 1.5rem;
  }

  .brand {
    gap: 10px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .brand-text {
    font-size: 0.92rem;
  }

  .button-row {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .metric-card {
    min-height: unset;
  }
}