:root {
  --bg: #f2f5fb;
  --surface: #ffffff;
  --surface-muted: #eef2ff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --border: #dbe3ef;
  --radius-sm: 0.6rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.1rem;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.07);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.11);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.1rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-top: 5.4rem;
}

html {
  scroll-padding-top: 6.4rem;
}

p {
  margin: 0;
  max-width: 68ch;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -100%;
  z-index: 1000;
  background: #111827;
  color: #fff;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.skip-link:focus-visible {
  top: var(--space-3);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.hero {
  background-image:
    linear-gradient(160deg, rgba(15, 23, 42, 0.78), rgba(30, 41, 59, 0.72) 55%, rgba(51, 65, 85, 0.7)),
    url("./hero-bg.png");
  background-size: cover;
  background-position: center;
  color: #f8fafc;
  padding-bottom: var(--space-6);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  transform: none;
  z-index: 900;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.95rem 4%;
  width: 100%;
  border-radius: 0;
  background: rgba(15, 23, 42, 0.88);
  border: 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.logo span {
  color: #93c5fd;
}

.nav ul {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  color: #dbeafe;
  text-decoration: none;
  font-weight: 500;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.nav a:hover {
  color: #eff6ff;
}

.nav a.is-active {
  color: #ffffff;
  border-color: #93c5fd;
}

.hero-content {
  padding: var(--space-7) 0 var(--space-5);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-4);
  align-items: center;
}

.hero-main {
  display: grid;
  gap: var(--space-4);
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.hero-panel {
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(147, 197, 253, 0.35);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(4px);
}

.hero-panel h2 {
  margin: 0 0 var(--space-3);
  font-size: 1.2rem;
}

.hero-panel ul {
  margin: 0;
  padding-left: var(--space-4);
  display: grid;
  gap: var(--space-2);
  color: #dbeafe;
}

.hero-stats {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.hero-stats p {
  margin: 0;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(191, 219, 254, 0.35);
  background: rgba(15, 23, 42, 0.4);
}

.hero-stats strong {
  display: block;
  font-size: 1.35rem;
  color: #bfdbfe;
}

.hero-stats span {
  color: #cbd5e1;
  font-size: 0.9rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4.1vw, 3.4rem);
}

.eyebrow {
  margin: 0;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #bfdbfe;
}

.btn {
  display: inline-block;
  border: none;
  background: var(--primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: rgba(191, 219, 254, 0.15);
  color: #dbeafe;
  border: 1px solid rgba(191, 219, 254, 0.35);
}

.btn-secondary:hover {
  background: rgba(191, 219, 254, 0.24);
}

.section {
  padding: var(--space-7) 0;
}

.section h2 {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.55rem, 2.4vw, 2.2rem);
}

.section-muted {
  background: var(--surface-muted);
}

.grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #c7d5ea;
}

.card h3 {
  margin: 0 0 var(--space-2);
}

.card p {
  color: var(--muted);
}

.card-icon {
  width: 2.2rem;
  height: 2.2rem;
  margin: 0 0 var(--space-2);
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1e3a8a;
  background: #dbeafe;
}

.card-project {
  position: relative;
  overflow: hidden;
}

.card-project::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
}

.card-eyebrow {
  display: inline-block;
  margin: 0 0 var(--space-2);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #1e40af;
  background: #dbeafe;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

.contact-layout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-5);
}

.contact-intro {
  display: grid;
  gap: var(--space-3);
}

.contact-map-wrap {
  align-self: stretch;
}

.contact-intro ul {
  margin: 0;
  padding-left: var(--space-4);
  color: var(--muted);
  display: grid;
  gap: var(--space-1);
}

.contact-map {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.contact-form {
  display: grid;
  gap: var(--space-3);
  max-width: 620px;
  align-content: start;
}

.contact-form label {
  display: grid;
  gap: var(--space-1);
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid #bac7dc;
  border-radius: var(--radius-sm);
  font: inherit;
  background: #fff;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.contact-form textarea {
  min-height: 8rem;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #6b7280;
}

.status {
  min-height: 1.2rem;
  margin: var(--space-1) 0 0;
  color: var(--muted);
  font-weight: 500;
}

.status-success {
  color: #065f46;
  background: #dcfce7;
  border: 1px solid #86efac;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-4) 0;
  color: var(--muted);
  background: #fff;
}

:focus-visible {
  outline: 3px solid #7dd3fc;
  outline-offset: 2px;
}

.nav a:focus-visible,
.btn:focus-visible,
.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  outline-color: #93c5fd;
}

.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 760px) {
  .nav {
    top: 0;
    border-radius: 0;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
    padding: var(--space-3) 4%;
  }

  .logo {
    font-size: 1rem;
  }

  .nav ul {
    width: 100%;
    justify-content: space-between;
    gap: var(--space-2);
    flex-wrap: wrap;
  }

  .nav a {
    font-size: 0.92rem;
  }

  .hero-content {
    grid-template-columns: 1fr;
    padding-top: 2.3rem;
    padding-bottom: var(--space-3);
    gap: var(--space-3);
  }

  .hero-main {
    gap: var(--space-3);
  }

  .hero h1 {
    font-size: clamp(1.55rem, 7vw, 2rem);
  }

  .hero-panel {
    padding: var(--space-3);
  }

  .hero-panel ul {
    gap: var(--space-1);
  }

  .hero-stats {
    margin-top: var(--space-3);
  }

  .section {
    padding: 2.3rem 0;
  }

  .section h2 {
    margin-bottom: var(--space-3);
    font-size: 1.45rem;
  }

  .grid {
    gap: var(--space-3);
  }

  .card {
    padding: var(--space-3);
  }

  .card h3 {
    margin-bottom: 0.45rem;
    font-size: 1.08rem;
  }

  .contact-layout {
    padding: var(--space-3);
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .contact-intro {
    gap: var(--space-2);
  }

  .contact-intro ul {
    gap: 0.2rem;
  }

  .contact-map {
    min-height: 240px;
  }

  body {
    padding-top: 6.6rem;
  }
}