/* BMC AI Landing Page */

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

:root {
  --navy:    #0B1E3D;
  --blue:    #1A4A8A;
  --teal:    #0EA5A0;
  --light:   #F4F7FB;
  --white:   #FFFFFF;
  --gray-100: #F0F4F8;
  --gray-300: #CBD5E0;
  --gray-500: #718096;
  --gray-700: #2D3748;
  --text:    #1A202C;
  --text-muted: #4A5568;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
}

/* ── Typography ── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--navy); }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.2rem; }
p  { color: var(--text-muted); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-300);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--teal); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue); }

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--blue) !important; }

/* ── Hero ── */
.hero {
  padding: 140px 0 80px;
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -120px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14,165,160,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(26,74,138,0.25) 0%, transparent 70%);
  pointer-events: none;
}

.hero-tag {
  display: inline-block;
  background: rgba(14,165,160,0.15);
  border: 1px solid rgba(14,165,160,0.4);
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero h1 {
  color: var(--white);
  max-width: 680px;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--teal); }

.hero-sub {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: #0c918a; transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--white);
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.6); background: rgba(255,255,255,0.07); }

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--teal);
  display: block;
}
.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── Trusted By / Credibility ── */
.credibility {
  padding: 40px 0;
  background: var(--gray-100);
  border-bottom: 1px solid var(--gray-300);
}
.credibility-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--gray-500);
  font-weight: 600;
  text-align: center;
  margin-bottom: 24px;
}
.credibility-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.45;
}
.credibility-logos span {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-700);
  letter-spacing: -0.3px;
}

/* ── Services ── */
.services { padding: 90px 0; }
.section-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--teal);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-title { margin-bottom: 16px; }
.section-sub { font-size: 1.05rem; max-width: 540px; margin-bottom: 56px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  padding: 36px 32px;
  transition: box-shadow 0.25s, border-color 0.25s, transform 0.2s;
}
.service-card:hover {
  box-shadow: 0 8px 40px rgba(11,30,61,0.1);
  border-color: var(--teal);
  transform: translateY(-3px);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}
.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: 0.92rem; line-height: 1.65; margin-bottom: 20px; }
.service-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-card li {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.service-card li::before {
  content: '✓';
  color: var(--teal);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── How It Works ── */
.how { background: var(--navy); padding: 90px 0; }
.how .section-label { color: rgba(14,165,160,0.9); }
.how .section-title { color: var(--white); }
.how .section-sub { color: rgba(255,255,255,0.65); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 56px;
}

.step {
  position: relative;
  padding: 32px 28px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--teal);
  color: var(--white);
  font-weight: 800;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: 20px;
}
.step h3 { color: var(--white); margin-bottom: 10px; }
.step p { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.step-connector {
  position: absolute;
  top: 56px;
  right: -20px;
  width: 40px;
  height: 2px;
  background: rgba(255,255,255,0.15);
}
@media (max-width: 768px) { .step-connector { display: none; } }

/* ── Who It's For ── */
.audience { padding: 90px 0; background: var(--gray-100); }
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.audience-card {
  background: var(--white);
  border-radius: 14px;
  padding: 28px;
  border: 1px solid var(--gray-300);
}
.audience-card h3 { margin-bottom: 8px; }
.audience-card p { font-size: 0.9rem; }
.audience-card .pain {
  font-size: 0.82rem;
  color: #e53e3e;
  font-weight: 600;
  margin-bottom: 8px;
}

/* ── CTA / Contact ── */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  text-align: center;
}
.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.7); font-size: 1.05rem; margin-bottom: 40px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }

/* ── Contact Details Bar ── */
.contact-bar { padding: 28px 0; background: #081529; }
.contact-bar .container {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  text-decoration: none;
}
.contact-item:hover { color: var(--white); }
.contact-item .icon { font-size: 1rem; }

/* ── Footer ── */
footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 32px 0;
}
footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: rgba(255,255,255,0.4); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }

/* ── Mobile Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 24px; }
  .services { padding: 60px 0; }
  .how { padding: 60px 0; }
  .audience { padding: 60px 0; }
  .cta-section { padding: 70px 0; }
  .section-sub { margin-bottom: 36px; }
  .contact-bar .container { flex-direction: column; gap: 16px; }
}

/* ── Contact Form ── */
.contact-form {
  max-width: 600px;
  margin: 0 auto 40px;
  text-align: left;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  color: rgba(255,255,255,0.8);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, background 0.2s;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.35); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--teal);
  background: rgba(255,255,255,0.12);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group select option { background: var(--navy); color: var(--white); }
.form-success {
  display: none;
  background: rgba(14,165,160,0.15);
  border: 1px solid rgba(14,165,160,0.4);
  border-radius: 10px;
  padding: 20px 24px;
  color: var(--teal);
  text-align: center;
  font-weight: 600;
  margin-bottom: 28px;
}