/* =========================================================
   Sterling Software Group – Modern Professional Theme
   ========================================================= */

/* Design tokens */

:root {
  /* Backgrounds */
  --bg-main: #f4f5f7;
  --bg-surface: #ffffff;
  --bg-surface-alt: #e9ebef;

  /* Borders */
  --border-subtle: #c7cbd4;
  --border-strong: #9ca3af;

  /* Text */
  --text-main: #111827;
  --text-muted: #6b7280;
  --text-inverse: #ffffff;

  /* Primary Accent (Professional Blue) */
  --accent-primary: #2563eb;
  --accent-primary-hover: #1d4ed8;
  --accent-primary-soft: rgba(37, 99, 235, 0.12);

  /* Secondary Accent (Premium Gold) */
--accent-secondary: #7a5514;
--accent-secondary-hover: #8f6926;

  /* Radius */
  --radius-card: 14px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-soft: 0 10px 26px rgba(15, 23, 42, 0.12);
  --shadow-medium: 0 16px 40px rgba(15, 23, 42, 0.16);

  /* Transitions */
  --transition-fast: 0.18s ease-out;
}

/* Dark mode */

@media (prefers-color-scheme: dark) {
  :root {
    --bg-main: #0b0f16;
    --bg-surface: #141820;
    --bg-surface-alt: #1b2029;

    --border-subtle: #2d3440;
    --border-strong: #3f4754;

    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-inverse: #0b0f16;

    --accent-primary: #4ea0ff;
    --accent-primary-hover: #6bb4ff;
    --accent-primary-soft: rgba(78, 160, 255, 0.18);

    --accent-secondary: #d8b46a;
    --accent-secondary-hover: #e2c27c;

    --shadow-soft: 0 12px 32px rgba(0, 0, 0, 0.55);
    --shadow-medium: 0 18px 48px rgba(0, 0, 0, 0.7);
  }
}

/* Reset / base */

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
}

.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 96px 20px 64px;
}

/* Header / nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(20, 24, 32, 0.9);
  }
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-logo-full {
  height: 46px;
  width: auto;
}

/* Nav */

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
  background: var(--accent-primary-soft);
}

.nav-link.active {
  color: var(--accent-primary);
  background: var(--accent-primary-soft);
}

/* Dropdown */

.nav-item.dropdown:hover .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.dropdown-toggle::after {
  content: "▾";
  font-size: 0.7rem;
  opacity: 0.7;
}

.dropdown-menu {
  position: absolute;
  top: 110%;
  left: 0;
  min-width: 220px;
  background: var(--bg-surface);
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-medium);
  padding: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 60;
}

.dropdown-item {
  display: block;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
}

.dropdown-item:hover {
  background: var(--accent-primary-soft);
  color: var(--text-main);
}

/* Mobile nav */

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  color: var(--text-main);
  cursor: pointer;
  font-size: 0.8rem;
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
  gap: 40px;
  align-items: center;
  margin-bottom: 56px;
}

.hero-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-secondary);
  margin-bottom: 10px;
}

.hero-title {
  font-size: 2.6rem;
  line-height: 1.1;
  margin: 0 0 14px;
}

.hero-subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
  max-width: 36rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

/* Hero card */

.hero-card {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.16), var(--bg-surface) 55%);
  border-radius: 20px;
  padding: 20px 18px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.hero-card-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-card-badge-icon {
  width: 28px;
  height: 28px;
}

.hero-card-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.hero-card-badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--accent-primary-soft);
  border: 1px solid var(--accent-primary);
  color: var(--text-main);
}

.hero-card-body {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 14px;
}

.hero-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Section headings */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 18px;
}

.section-title-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section-title {
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.badge-inline {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  padding: 18px 18px 20px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast),
    background var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
  border-color: var(--accent-primary);
  background: var(--bg-surface-alt);
}

.card-kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-secondary);
}

.card-title {
  font-size: 1.05rem;
  margin: 0;
  color: var(--text-main);
}

.card-body {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.card-actions {
  margin-top: auto;
  display: flex;
  justify-content: flex-start;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast), color var(--transition-fast);
}

.btn:hover {
  background: var(--accent-primary-soft);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.btn-primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 18px 20px 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-surface-alt);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-badge {
  width: 20px;
  height: 20px;
}

/* Responsive */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (max-width: 720px) {
  main {
    padding-top: 80px;
  }

  .header-inner {
    padding-inline: 14px;
  }

  .nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav.open {
    display: flex;#7a5514
    flex-direction: column;
    position: absolute;
    top: 52px;
    right: 10px;
    background: var(--bg-surface);
    border-radius: 14px;
    border: 1px solid var(--border-subtle);
    padding: 8px;
    box-shadow: var(--shadow-medium);
  }

  .nav-list {
    flex-direction: column;
  }

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