/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --bg:          #FFFFFF;
  --bg-alt:      #F8FAFC;
  --text:        #0F172A;
  --text-muted:  #64748B;
  --text-light:  #94A3B8;
  --accent:      #F97316;
  --accent-dark: #C2570E;
  --blue:        #2563EB;
  --border:      #E2E8F0;
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(15, 23, 42, 0.07);
  --shadow-lg:   0 12px 48px rgba(15, 23, 42, 0.12);
  --nav-h:       68px;
  --max-w:       1160px;
  --transition:  0.2s ease;
}

/* ── Page wrapper (wide screens) ───────────────────────────────── */
.page-wrapper {
  max-width: 1600px;
  margin: 0 auto;
}

@media (min-width: 1620px) {
  html { background: #EEF2F7; }
  .page-wrapper {
    box-shadow: 0 0 0 1px var(--border), 0 0 60px rgba(15, 23, 42, 0.08);
  }
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Layout ─────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.bg-alt   { background: var(--bg-alt); }

/* ── Typography ─────────────────────────────────────────────────── */
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 800; line-height: 1.2; letter-spacing: -0.025em; }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }
p  { color: var(--text-muted); }

.text-accent { color: var(--accent); }

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
  border: none;
}

.btn-orange {
  background: var(--accent);
  color: white;
}
.btn-orange:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
}
.btn-orange:active { transform: none; box-shadow: none; }

.btn-large { padding: 15px 32px; font-size: 1rem; border-radius: 10px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition);
}
.btn-ghost:hover { color: var(--text); }

.btn-outline-white {
  display: inline-flex;
  align-items: center;
  padding: 15px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.35);
  color: white;
  transition: border-color var(--transition), background var(--transition);
}
.btn-outline-white:hover { border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.08); }

/* ── Section header ─────────────────────────────────────────────── */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-header h2  { margin-bottom: 12px; }
.section-header p   { font-size: 1.05rem; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

/* ── NAV ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 16px rgba(15,23,42,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}
.logo-text strong { font-weight: 800; color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

.nav-cta { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ────────────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 60px;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin-bottom: 20px;
}
.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(1.4); }
}

.hero h1   { margin-bottom: 20px; }
.hero-sub  { font-size: 1.1rem; max-width: 480px; margin-bottom: 36px; }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.nexus-svg {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 8px 32px rgba(249,115,22,0.10));
}

/* ── SERVICES ────────────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-card {
  position: relative;
  padding: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.service-card-featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, #FFF7ED 0%, #FFFFFF 60%);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-icon-meta {
  background: #1877F2;
}

.service-card h3 { margin-bottom: 12px; }
.service-card p  { margin-bottom: 24px; font-size: 0.95rem; }

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}
.service-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ── PROCESS ─────────────────────────────────────────────────────── */
.process-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 16px;
}

.process-step {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: white;
  border: 1px solid var(--border);
}

.step-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.04em;
}

.process-step h3 { margin-bottom: 10px; }
.process-step p  { font-size: 0.9rem; }

.process-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 44px;
  opacity: 0.6;
}

/* ── DIFFERENTIALS ───────────────────────────────────────────────── */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.diff-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: box-shadow var(--transition), transform var(--transition);
}
.diff-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.diff-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #FFF7ED;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.diff-card h4 { margin-bottom: 8px; }
.diff-card p  { font-size: 0.88rem; }

/* ── FAQ ─────────────────────────────────────────────────────────── */
.faq-container { max-width: 720px; }

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: white;
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: background var(--transition);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: #FAFAFA; }

.faq-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}
.faq-item[open] .faq-chevron { transform: rotate(180deg); }
.faq-item[open] summary { color: var(--accent); }

.faq-body {
  padding: 0 24px 20px;
  border-top: 1px solid var(--border);
}
.faq-body p { font-size: 0.93rem; padding-top: 16px; }

/* ── CTA BANNER ──────────────────────────────────────────────────── */
.cta-banner {
  background: var(--text);
  padding: 88px 0;
}

.cta-inner {
  text-align: center;
  max-width: 600px;
}

.cta-banner h2 {
  color: white;
  margin-bottom: 16px;
}
.cta-banner p {
  color: #94A3B8;
  font-size: 1.05rem;
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── FOOTER ──────────────────────────────────────────────────────── */
.site-footer {
  background: #060E1F;
  padding: 48px 0;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-logo .logo-text { color: white; }

.footer-tagline {
  font-size: 0.88rem;
  color: #475569;
}
.footer-email {
  font-size: 0.88rem;
  color: #64748B;
  transition: color var(--transition);
}
.footer-email:hover { color: var(--accent); }

.footer-copy {
  font-size: 0.8rem;
  color: #334155;
  margin-top: 8px;
}

/* ── Responsive: Tablet ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .diff-grid { grid-template-columns: 1fr 1fr; }

  .process-steps {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .process-arrow { padding-top: 0; transform: rotate(90deg); }
}

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 40px; text-align: center; }
  .hero-sub { max-width: 100%; }
  .badge { margin: 0 auto 20px; }
  .hero-actions { justify-content: center; }
  .hero-visual { max-width: 320px; margin: 0 auto; }

  .services-grid { grid-template-columns: 1fr; }

  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
    box-shadow: var(--shadow);
  }
  .nav-links.open a {
    padding: 10px 4px;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open a:last-child { border-bottom: none; }
  .nav-links.open + .nav-cta { display: none; }
}

@media (max-width: 560px) {
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }

  .diff-grid { grid-template-columns: 1fr; }

  .cta-actions { flex-direction: column; align-items: stretch; text-align: center; }
  .btn-outline-white { justify-content: center; }

  .process-steps { max-width: 100%; }
}