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

:root {
  --bg: #050816;
  --bg-alt: #0b1020;
  --card: #151a2c;
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.1);
  --text: #f9fafb;
  --muted: #9ca3af;
  --border: #1f2937;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.65);
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #111827, #020617);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.site-header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.4));
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 0%, #60a5fa, #1d4ed8);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: #e5e7eb;
}

.main-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.main-nav a {
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  color: var(--muted);
  transition: all 0.16s ease-out;
}

.main-nav a:hover {
  background: rgba(31, 41, 55, 0.85);
  color: var(--text);
}

.main-nav a.active {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Hero */

.hero {
  padding: 3.5rem 0 3rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
  gap: 2.75rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.1rem, 3vw, 2.7rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-text p {
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 34rem;
  margin-bottom: 1.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(to right, #2563eb, #4f46e5);
  color: white;
  font-weight: 500;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.35);
  transition: transform 0.12s ease-out, box-shadow 0.12s ease-out, filter 0.12s ease-out;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
  box-shadow: 0 20px 38px rgba(37, 99, 235, 0.45);
}

.hero-card {
  background: linear-gradient(145deg, #020617, #020617 35%, #020617 40%, #020617);
  border-radius: 1.4rem;
  padding: 1.6rem 1.5rem 1.5rem;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 10% 0%, rgba(59, 130, 246, 0.35), transparent 45%),
    radial-gradient(circle at 90% 0%, rgba(56, 189, 248, 0.3), transparent 55%);
  opacity: 0.75;
  pointer-events: none;
}

.hero-card h2 {
  position: relative;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
  z-index: 1;
}

.hero-card ul {
  position: relative;
  list-style: none;
  z-index: 1;
  display: grid;
  gap: 0.55rem;
  font-size: 0.9rem;
}

.hero-card li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  color: #e5e7eb;
}

.hero-card li::before {
  content: "•";
  color: #93c5fd;
  margin-top: 0.15rem;
}

/* Sections */

.section-light {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.8), transparent);
  padding: 2.5rem 0 2.75rem;
}

.section-dark {
  background: radial-gradient(circle at bottom right, rgba(15, 23, 42, 0.95), #020617);
  padding: 2.75rem 0 3.25rem;
}

.columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.8rem;
}

.column h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.column p {
  font-size: 0.93rem;
  color: var(--muted);
}

.section-dark h2 {
  text-align: center;
  font-size: 1.4rem;
  margin-bottom: 1.7rem;
}

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.pill {
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 0.87rem;
  background: rgba(15, 23, 42, 0.8);
}

/* Pages */

.page-main {
  padding-bottom: 3rem;
}

.page-header {
  padding: 2.75rem 0 1.75rem;
}

.page-header h1 {
  font-size: 1.8rem;
  margin-bottom: 0.4rem;
}

.page-header p {
  color: var(--muted);
  font-size: 0.95rem;
}

.page-content {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 1.4rem;
  padding: 1.8rem 1.5rem 2rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  box-shadow: var(--shadow-soft);
  font-size: 0.95rem;
}

.page-content h2 {
  font-size: 1.15rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.page-content p {
  margin-bottom: 0.5rem;
  color: var(--muted);
}

.page-content ul {
  margin-left: 1.1rem;
  margin-bottom: 0.6rem;
  color: var(--muted);
}

.page-content li {
  margin-bottom: 0.25rem;
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.5fr);
  gap: 1.8rem;
}

.contact-form {
  display: grid;
  gap: 0.55rem;
}

.contact-form label {
  font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
  background: #020617;
  border-radius: 0.75rem;
  border: 1px solid rgba(51, 65, 85, 0.9);
  padding: 0.55rem 0.7rem;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.3);
}

.form-note {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  background: #020617;
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-bottom {
  border-top: 1px solid rgba(31, 41, 55, 0.85);
  text-align: center;
  padding: 0.85rem 1.5rem;
  font-size: 0.8rem;
  color: #6b7280;
}

/* Responsive */

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .main-nav {
    font-size: 0.82rem;
    flex-wrap: wrap;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: -1;
  }

  .page-content {
    border-radius: 1rem;
    padding: 1.4rem 1.2rem 1.6rem;
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}