:root {
  --bg: #0b0f14;
  --bg-alt: #10161d;
  --surface: #141b23;
  --surface-hover: #19222c;
  --border: #232d38;
  --text: #e7edf3;
  --text-muted: #9aa8b7;
  --accent: #4f8cff;
  --accent-2: #35d0b8;
  --accent-contrast: #061018;
  --radius: 14px;
  --max-width: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}
.logo:hover { text-decoration: none; }

.logo-mark {
  color: var(--accent);
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-weight: 700;
}

.logo-text strong { color: var(--accent); font-weight: 700; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.primary-nav a {
  color: var(--text-muted);
  font-weight: 500;
}
.primary-nav a:hover { color: var(--text); text-decoration: none; }

.nav-cta {
  color: var(--accent-contrast) !important;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover { opacity: .9; text-decoration: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(600px circle at 15% 0%, rgba(79,140,255,.15), transparent 60%),
    radial-gradient(500px circle at 90% 20%, rgba(53,208,184,.1), transparent 55%);
}

.hero-inner { max-width: 780px; }

.eyebrow {
  color: var(--accent-2);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .8rem;
  margin: 0 0 14px;
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  margin-bottom: 20px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 1rem;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

.section-title { font-size: clamp(1.6rem, 3vw, 2rem); }
.section-lead {
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 40px;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.card:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(79,140,255,.12);
  color: var(--accent);
  margin-bottom: 16px;
}
.card-icon svg { width: 24px; height: 24px; }

.card h3 { font-size: 1.1rem; }
.card p { color: var(--text-muted); margin: 0; font-size: .95rem; }

/* About */
.about-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-inner p { color: var(--text-muted); }

.facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.facts li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.facts li span {
  display: block;
  color: var(--accent-2);
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 4px;
}

/* Contact */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  align-items: start;
}

.contact-details {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-label {
  display: block;
  color: var(--text-muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 2px;
}
.contact-details a { color: var(--text); font-size: 1.05rem; }
.contact-details a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: .9rem; color: var(--text-muted); }

.form-row input[type="text"],
.form-row input[type="email"],
.form-row textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-row-checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
}
.form-row-checkbox label {
  font-size: .85rem;
  color: var(--text-muted);
}
.form-row-checkbox input { margin-top: 4px; }

.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.form-status {
  padding: 12px 14px;
  border-radius: 8px;
  font-size: .9rem;
}
.form-status.success { background: rgba(53,208,184,.12); color: var(--accent-2); border: 1px solid rgba(53,208,184,.35); }
.form-status.error { background: rgba(255,90,90,.12); color: #ff8a8a; border: 1px solid rgba(255,90,90,.35); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--text-muted);
  font-size: .9rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-nav { display: flex; gap: 18px; }
.footer-nav a { color: var(--text-muted); }
.footer-nav a:hover { color: var(--accent); }

/* Legal pages */
.legal {
  padding: 64px 0 96px;
  max-width: 760px;
}
.legal h1 { margin-bottom: 8px; }
.legal h2 { margin-top: 40px; font-size: 1.2rem; }
.legal p, .legal li { color: var(--text-muted); }
.legal a { color: var(--accent); }
.back-link { display: inline-block; margin-bottom: 24px; color: var(--text-muted); }

/* Responsive */
@media (max-width: 860px) {
  .about-inner, .contact-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    gap: 16px;
    display: none;
  }
  .primary-nav.open { display: flex; }
  .nav-cta { align-self: flex-start; }
}