:root {
  --bg-0: #090b0d;
  --bg-1: #0f1216;
  --bg-2: #161a20;
  --line: #262c34;
  --text-0: #f3f6fa;
  --text-1: #c7ced9;
  --text-2: #9ca8b8;
  --accent: #7f93ad;
  --accent-soft: #5f7087;
  --card: rgba(20, 24, 29, 0.82);
  --radius: 14px;
  --container: 1140px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
}

body {
  color: var(--text-1);
  background:
    radial-gradient(1000px 500px at 10% -5%, rgba(101, 121, 145, 0.12), transparent 65%),
    radial-gradient(800px 600px at 90% 0%, rgba(60, 77, 99, 0.1), transparent 66%),
    linear-gradient(165deg, var(--bg-0) 0%, var(--bg-1) 52%, var(--bg-2) 100%);
  font-family: "Segoe UI", "Avenir Next", "Helvetica Neue", "Nimbus Sans", Arial, sans-serif;
  letter-spacing: 0.005em;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

.ambient-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(102, 116, 136, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 116, 136, 0.08) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, black 22%, transparent 78%);
  opacity: 0.18;
  pointer-events: none;
  z-index: -2;
  animation: drift 30s linear infinite;
}

.ambient-glow {
  position: fixed;
  inset: -20% -10% auto -10%;
  height: 70vh;
  background: radial-gradient(circle at center, rgba(122, 144, 170, 0.11), rgba(122, 144, 170, 0));
  pointer-events: none;
  z-index: -1;
  animation: pulse 14s ease-in-out infinite;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-38px, -38px, 0); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.48; transform: scale(1); }
  50% { opacity: 0.72; transform: scale(1.05); }
}

.container {
  width: min(var(--container), calc(100% - 2.5rem));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: #000;
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background: rgba(8, 10, 13, 0.62);
  border-bottom: 1px solid rgba(137, 157, 183, 0.16);
}

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

.brand {
  color: var(--text-0);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.4rem;
}

.nav-list a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 240ms ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--text-0);
}

.section {
  padding: clamp(4.5rem, 7vw, 7rem) 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(24, 30, 38, 0.28), rgba(8, 11, 14, 0.08));
  border-top: 1px solid rgba(125, 145, 171, 0.1);
  border-bottom: 1px solid rgba(125, 145, 171, 0.1);
}

.hero {
  min-height: calc(95vh - 72px);
  display: grid;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-size: 0.78rem;
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  color: var(--text-0);
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 6vw, 4.7rem);
  max-width: 16ch;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.45rem, 3.4vw, 2.4rem);
  margin-bottom: 1rem;
  letter-spacing: -0.012em;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 0.7rem;
}

p {
  margin: 0;
}

.hero-subheadline,
.lead {
  max-width: 70ch;
  color: var(--text-1);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.hero-subheadline {
  margin-top: 1.15rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  margin: 2rem 0 1.15rem;
}

.button {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  min-height: 44px;
  padding: 0 1.25rem;
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 260ms ease, background-color 260ms ease, color 260ms ease, border-color 260ms ease;
  border: 1px solid transparent;
}

.button:focus-visible {
  outline: 2px solid #b6c6d9;
  outline-offset: 2px;
}

.button-primary {
  background: linear-gradient(180deg, #7f93ad, #6b8099);
  color: #0d1116;
}

.button-primary:hover {
  transform: translateY(-1px);
  background: linear-gradient(180deg, #90a4bf, #738ba7);
}

.button-secondary {
  border-color: rgba(149, 169, 195, 0.42);
  color: var(--text-0);
  background: rgba(18, 23, 29, 0.54);
}

.button-secondary:hover {
  transform: translateY(-1px);
  border-color: rgba(172, 191, 217, 0.7);
}

.hero-support,
.closing-line {
  color: var(--text-2);
}

.card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.7rem;
}

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

.card-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid rgba(131, 152, 177, 0.18);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
  transition: transform 260ms ease, border-color 260ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(168, 190, 219, 0.44);
}

.principles-list,
.roles-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.principles-list li,
.roles-list li {
  border-left: 2px solid rgba(130, 152, 178, 0.42);
  padding-left: 0.85rem;
  color: var(--text-1);
}

.site-footer {
  border-top: 1px solid rgba(136, 157, 184, 0.16);
  padding: 1.8rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-2);
  font-size: 0.92rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 850ms ease, transform 850ms ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .card-grid-3,
  .card-grid-2 {
    grid-template-columns: 1fr;
  }

  .nav-list {
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.8rem 0;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .hero-actions {
    flex-wrap: wrap;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.4rem;
  }
}

@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;
  }
}