/* Social CIPS — Professional one-page theme */
:root {
  --color-bg: #0f1419;
  --color-surface: #1a2332;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-border: #30363d;
  --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", monospace;
  --space-unit: 0.25rem;
  --container: min(1200px, 100vw - 2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid #fff;
  outline-offset: 2px;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 20, 25, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.logo img {
  display: block;
  height: 40px;
  width: auto;
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 0.5rem 0;
}
.main-nav a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 8px;
  cursor: pointer;
  position: relative;
}
.nav-toggle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 2px;
  background: currentColor;
  box-shadow: 0 -6px 0, 0 6px 0;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    display: none;
  }
  .main-nav.is-open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 20, 25, 0.7) 0%, rgba(15, 20, 25, 0.95) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 1rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: #fff;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 42ch;
  margin: 0 auto 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-surface);
  text-decoration: none;
}

/* Sections */
.section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--color-border);
}

.section:last-of-type {
  border-bottom: none;
}

.section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0 0 1rem;
  color: #fff;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.section p {
  margin: 0 0 1rem;
  max-width: 65ch;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
}

.card h3 {
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
  color: #fff;
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Subpage banner */
.page-hero {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.page-hero .hero-overlay {
  background: linear-gradient(180deg, rgba(15, 20, 25, 0.6) 0%, rgba(15, 20, 25, 0.92) 100%);
}

.page-hero .hero-content {
  text-align: left;
  padding: 2rem 1rem;
}

.page-hero h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}
.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-legal {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Breadcrumb */
.breadcrumb {
  padding: 0.75rem 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}
.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb span[aria-hidden="true"] {
  margin: 0 0.35rem;
}