/* ========== GLOBAL DESIGN SYSTEM (Dark Theme) ========== */
:root {
  --bg: #0f172a;
  --bg-elevated: #1e293b;
  --bg-card: #1e293b;
  --border: #334155;
  --border-hover: #22c55e;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent-green: #22c55e;
  --accent-green-hover: #16a34a;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Roboto Mono', monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ========== NAVIGATION ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
  transition: background 0.3s, box-shadow 0.3s;
}

.nav.is-scrolled {
  background: rgba(15, 23, 42, 0.95);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.nav-logo {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.125rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav-logo img {
  height: 40px;
  width: auto;
  display: block;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-ctas {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-login {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #fff;
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-login svg {
  width: 18px;
  height: 18px;
  opacity: 0.9;
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-pill-primary {
  background: var(--accent-green);
  color: var(--bg);
  border: none;
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.25);
}

.btn-pill-primary:hover {
  background: var(--accent-green-hover);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.35);
}

.btn-pill-secondary {
  background: transparent;
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
}

.btn-pill-secondary:hover {
  background: var(--accent-blue);
  color: #fff;
}

/* Services dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 0;
}

.nav-dropdown-trigger:hover {
  color: var(--text);
}

.nav-dropdown-trigger svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
  min-width: 200px;
  padding: 0.5rem 0;
  background: rgba(30, 41, 59, 0.98);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  list-style: none;
  margin: 0;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
}

.nav-dropdown-menu a:hover {
  color: var(--accent-green);
  background: rgba(34, 197, 94, 0.08);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  transition: color 0.2s;
  z-index: 102;
}
.nav-hamburger:hover { color: var(--accent-green); }
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav-hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.nav-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 98;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.nav-mobile-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.nav-mobile-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  max-width: 85vw;
  height: 100vh;
  z-index: 99;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
  padding: 5rem 1.5rem 1.5rem;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}
.nav-mobile-panel.is-open {
  transform: translateX(0);
}
.nav-mobile-panel ul { list-style: none; margin: 0; padding: 0; }
.nav-mobile-panel li { margin-bottom: 0.25rem; }
.nav-mobile-panel a, .nav-mobile-panel .nav-mobile-label {
  display: block;
  padding: 0.6rem 0;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-mobile-panel a:hover { color: var(--accent-green); }
.nav-mobile-panel .nav-mobile-label { color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 1rem; }
.nav-mobile-panel .nav-mobile-sub a { padding-left: 1rem; }
.nav-mobile-panel .btn-pill { display: block; text-align: center; margin-top: 1.5rem; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-ctas { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile-overlay, .nav-mobile-panel { display: block; }
}

/* ========== FOOTER ========== */
.footer {
  padding: 3rem 1.5rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

@media (max-width: 800px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 500px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

.footer-brand .nav-logo {
  display: inline-block;
  margin-bottom: 0.5rem;
}
.footer-brand .nav-logo img {
  height: 120px;
}

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

.footer h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 1rem 0;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer li {
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.footer a:hover {
  color: var(--accent-blue);
}

.footer-socials {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.footer-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.footer-socials a:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
}