*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --bg-panel: #111;
  --fg: #f0f0f0;
  --muted: #888;
  --line: #222;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(8px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.btn-login {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.35rem 0.9rem;
  transition: color 0.15s, border-color 0.15s;
}

.btn-login:hover {
  color: var(--fg);
  border-color: #444;
}

/* ---- Hero ---- */

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(4rem, 14vw, 10rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
  margin-bottom: 1.5rem;
}

.tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ---- Sections ---- */

section {
  padding: 4rem 0;
  border-top: 1px solid var(--line);
}

h2 {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 2.5rem;
}

/* ---- Services ---- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.5rem;
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.service-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---- Contact ---- */

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-list li {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

.contact-label {
  color: var(--muted);
  min-width: 5rem;
}

.contact-list a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Footer ---- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-portal-link {
  color: var(--muted);
  text-decoration: none;
}

.footer-portal-link:hover {
  color: var(--fg);
}