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

:root {
  --navy:   #0F1F3D;
  --navy2:  #1A2E52;
  --blue:   #1D5FA8;
  --blue-lt:#2E7DD1;
  --accent: #E8641A;
  --green:  #2D8A4E;
  --light:  #F5F7FA;
  --white:  #FFFFFF;
  --gray:   #6B7280;
  --border: #E2E8F0;
  --text:   #1A202C;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.14);
}

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s;
}
.nav.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.1); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 160px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--navy);
}
.logo-bird { font-size: 24px; }
.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}
.logo-sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--gray);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.logo-img {
  height: 144px;
  width: auto;
}
.footer-logo-img {
  height: 40px;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--navy); }
.nav-cta {
  background: var(--navy) !important;
  color: var(--white) !important;
  padding: 9px 20px;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--blue) !important; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: #c9551a; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,100,26,0.35); }
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover { background: var(--navy); color: var(--white); }
.full-width { width: 100%; text-align: center; }

/* ── Hero ── */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 60%, #1A3E6E 100%);
  padding: 110px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}
.hero-headline {
  font-size: clamp(36px, 5.5vw, 62px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.7;
}

/* ── Sections ── */
.section { padding: 96px 0; }
.section-light { background: var(--light); }
.section-dark  { background: var(--navy); }
.section-navy  { background: var(--navy2); }

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.section-label.light { color: rgba(255,255,255,0.5); }

h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
h2.light { color: var(--white); }
h2.center { text-align: center; }

.section-sub {
  font-size: 17px;
  color: var(--gray);
  max-width: 600px;
  margin-bottom: 48px;
}

/* ── About Two Col ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.col-text p {
  color: var(--gray);
  margin-bottom: 16px;
  font-size: 16px;
}
.col-text h2 { margin-bottom: 24px; }
.btn-group { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }

.col-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.stat-icon { font-size: 28px; margin-bottom: 10px; }
.stat-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--gray); margin-bottom: 4px; }
.stat-value { font-size: 15px; font-weight: 700; color: var(--navy); }

/* ── Why Birdsong ── */
.compare-table {
  max-width: 820px;
  margin: 48px auto 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}
.compare-header,
.compare-row {
  display: grid;
  grid-template-columns: 1fr 140px 140px;
}
.compare-header {
  background: rgba(255,255,255,0.08);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.6);
  padding: 14px 20px;
}
.compare-header .compare-col { text-align: center; }
.compare-row {
  padding: 18px 20px;
  border-top: 1px solid rgba(255,255,255,0.07);
  align-items: center;
  color: rgba(255,255,255,0.88);
  font-size: 15px;
}
.compare-row.alt { background: rgba(255,255,255,0.04); }
.compare-col { text-align: center; font-size: 15px; }
.compare-col.yes { color: #4ADE80; font-size: 20px; }
.compare-col.no  { color: rgba(255,255,255,0.35); font-weight: 500; }
.compare-col-main { padding-right: 20px; text-align: left; font-weight: 500; }

/* ── Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-icon { font-size: 32px; margin-bottom: 14px; }
.service-card h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--gray); line-height: 1.65; margin-bottom: 16px; }
.service-tag {
  display: inline-block;
  background: var(--light);
  color: var(--blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* ── Team ── */
.team-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.team-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 32px;
  align-items: flex-start;
}
.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.team-info h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 4px;
}
.team-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--blue);
  margin-bottom: 16px;
}
.team-info p {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 12px;
  line-height: 1.7;
}
.team-links { margin-top: 16px; display: flex; gap: 16px; flex-wrap: wrap; }
.team-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 6px;
  transition: all 0.2s;
}
.team-link:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }

@media (max-width: 600px) {
  .team-card { flex-direction: column; }
}

/* ── Contact ── */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-left h2 { color: var(--white); }
.light-sub { color: rgba(255,255,255,0.7); margin-bottom: 36px; font-size: 16px; }
.contact-prompts { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.prompt {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.prompt-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.prompt strong { display: block; color: var(--white); font-size: 15px; margin-bottom: 2px; }
.prompt p { color: rgba(255,255,255,0.6); font-size: 14px; margin: 0; }
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}
.contact-form h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 24px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}
.optional { color: var(--gray); font-weight: 400; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(29,95,168,0.1);
}
.form-group textarea { resize: vertical; }
.form-note {
  text-align: center;
  font-size: 12px;
  color: var(--gray);
  margin-top: 12px;
  line-height: 1.5;
}

/* ── Footer ── */
.footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer .logo-text { color: var(--white); }
.footer .logo-sub { color: rgba(255,255,255,0.4); }
.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }
.footer-copy {
  color: rgba(255,255,255,0.3);
  font-size: 12px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .compare-header, .compare-row { grid-template-columns: 1fr 100px 100px; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .col-visual { grid-template-columns: 1fr 1fr; }
  .hero { padding: 80px 0 90px; }
  .section { padding: 72px 0; }
  .compare-header .compare-col-main,
  .compare-row .compare-col-main { font-size: 13px; }
}