/* Groundswell Structures — Global Styles */
:root {
  --navy: #1B2A4A;
  --navy-light: #2D4470;
  --navy-dark: #0F1B33;
  --steel: #4A6FA5;
  --ice: #E8EDF4;
  --white: #FFFFFF;
  --warm-gray: #F5F5F3;
  --text: #1A1D23;
  --text-muted: #6B7280;
  --amber: #D4A843;
  --amber-hover: #C09A38;
  --success: #22C55E;
  --border: #E5E7EB;
  --card-bg: #FAFAFA;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(27,42,74,0.08);
  --shadow-lg: 0 8px 32px rgba(27,42,74,0.12);
  --transition: 0.25s ease;
  --max-w: 1200px;
}

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

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

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

h1, h2, h3, h4 {
  font-family: 'DM Serif Display', Georgia, serif;
  line-height: 1.2;
  color: var(--navy);
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.6rem); }

p { max-width: 68ch; }

a { color: var(--steel); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--navy); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* --- Navigation --- */
.nav {
  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(--border);
  height: 72px;
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.08); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: 'DM Serif Display', serif; font-size: 1.15rem;
  color: var(--navy); text-decoration: none; font-weight: 400;
  letter-spacing: 0.02em;
}
.nav-logo img { height: 42px; width: auto; }
.nav-links { display: flex; gap: 32px; align-items: center; list-style: none; }
.nav-links a {
  color: var(--text); font-size: 0.9rem; font-weight: 500;
  text-decoration: none; position: relative; padding: 4px 0;
  transition: color var(--transition);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--amber);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--navy); }

.nav-cta {
  background: var(--amber); color: var(--white) !important; padding: 8px 20px;
  border-radius: var(--radius-sm); font-weight: 600; font-size: 0.85rem;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--amber-hover); transform: translateY(-1px); color: var(--white) !important; }

/* Mobile menu toggle */
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; position: relative;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0;
    background: var(--white); flex-direction: column;
    padding: 24px; gap: 16px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%); opacity: 0; pointer-events: none;
    transition: all 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0); opacity: 1; pointer-events: auto;
  }
  .nav-links a { font-size: 1.05rem; padding: 8px 0; }
}

/* --- Hero --- */
.hero {
  position: relative; min-height: 85vh; display: flex; align-items: center;
  background-size: cover; background-position: center;
  margin-top: 72px; overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(15,27,51,0.88) 0%, rgba(27,42,74,0.72) 50%, rgba(74,111,165,0.45) 100%);
}
.hero-content {
  position: relative; z-index: 2; max-width: var(--max-w);
  margin: 0 auto; padding: 80px 24px;
}
.hero h1 { color: var(--white); margin-bottom: 20px; max-width: 700px; }
.hero p {
  color: rgba(255,255,255,0.85); font-size: 1.15rem;
  max-width: 560px; margin-bottom: 32px; line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--amber); color: var(--white);
}
.btn-primary:hover { background: var(--amber-hover); color: var(--white); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(212,168,67,0.35); }
.btn-secondary {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-secondary:hover { border-color: var(--white); color: var(--white); transform: translateY(-2px); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-light); color: var(--white); transform: translateY(-2px); }

/* --- Stats Bar --- */
.stats-bar {
  background: var(--navy); padding: 48px 24px;
}
.stats-grid {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  text-align: center;
}
.stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 700;
  color: var(--amber); line-height: 1;
}
.stat-label {
  color: rgba(255,255,255,0.7); font-size: 0.85rem;
  margin-top: 8px; text-transform: uppercase; letter-spacing: 0.08em;
}
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* --- Section --- */
.section { padding: 80px 24px; }
.section-light { background: var(--warm-gray); }
.section-header {
  text-align: center; margin-bottom: 48px;
}
.section-header p {
  color: var(--text-muted); margin: 12px auto 0; font-size: 1.05rem;
}
.section-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--steel); margin-bottom: 12px;
}

/* --- Service Cards --- */
.services-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px; max-width: var(--max-w); margin: 0 auto;
}
.service-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--steel); box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--ice); display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; color: var(--steel);
}
.service-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
.service-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* --- Project Cards --- */
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px; max-width: var(--max-w); margin: 0 auto;
}
.project-card {
  border-radius: var(--radius); overflow: hidden;
  background: var(--white); border: 1px solid var(--border);
  transition: all var(--transition); cursor: pointer;
}
.project-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.project-card-img {
  height: 220px; background-size: cover; background-position: center;
  position: relative;
}
.project-card-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--navy); color: var(--white);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 4px 10px; border-radius: 4px;
}
.project-card-body { padding: 20px; }
.project-card-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.project-card-body p { color: var(--text-muted); font-size: 0.85rem; }

/* --- Features / Why Us --- */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px; max-width: var(--max-w); margin: 0 auto;
}
.feature {
  text-align: center; padding: 24px;
}
.feature-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--ice); margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
}
.feature h3 { margin-bottom: 8px; font-size: 1.1rem; }
.feature p { color: var(--text-muted); font-size: 0.9rem; margin: 0 auto; }

/* --- CTA Section --- */
.cta-section {
  background: var(--navy); padding: 80px 24px; text-align: center;
}
.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p { color: rgba(255,255,255,0.7); margin: 0 auto 32px; font-size: 1.05rem; }

/* --- Footer --- */
.footer {
  background: var(--navy-dark); color: rgba(255,255,255,0.7);
  padding: 64px 24px 32px;
}
.footer-grid {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
}
.footer h4 { color: var(--white); font-size: 1rem; margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 300px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.footer-links a:hover { color: var(--amber); }
.footer-bottom {
  max-width: var(--max-w); margin: 40px auto 0;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* --- Pricing Tables --- */
.pricing-tabs {
  display: flex; gap: 8px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 32px;
}
.pricing-tab {
  padding: 10px 20px; border: 2px solid var(--border);
  border-radius: var(--radius-sm); background: var(--white);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all var(--transition);
}
.pricing-tab.active, .pricing-tab:hover {
  border-color: var(--navy); background: var(--navy); color: var(--white);
}
.pricing-table {
  width: 100%; max-width: 800px; margin: 0 auto;
  border-collapse: collapse; font-size: 0.9rem;
}
.pricing-table th {
  background: var(--navy); color: var(--white);
  padding: 14px 20px; text-align: left; font-weight: 600;
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em;
}
.pricing-table td {
  padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.pricing-table tr:hover td { background: var(--ice); }
.pricing-table .price {
  font-family: 'JetBrains Mono', monospace; font-weight: 600;
  color: var(--navy);
}
.pricing-note {
  text-align: center; margin-top: 24px; color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  max-width: var(--max-w); margin: 0 auto;
}
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info-item {
  display: flex; gap: 16px; align-items: flex-start; margin-bottom: 24px;
}
.contact-info-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--ice); display: flex; align-items: center; justify-content: center;
  color: var(--steel); flex-shrink: 0;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 6px; color: var(--text);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 0.9rem;
  font-family: inherit; transition: border-color var(--transition);
  background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--steel); box-shadow: 0 0 0 3px rgba(74,111,165,0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: var(--navy); padding: 120px 24px 60px;
  text-align: center; margin-top: 72px;
}
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.7); margin: 0 auto; font-size: 1.05rem; }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-48 { margin-bottom: 48px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-16 { gap: 16px; }

/* --- Process Timeline --- */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  max-width: var(--max-w); margin: 0 auto;
}
.process-step {
  text-align: center; position: relative; padding: 24px 16px;
}
.step-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--amber); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-weight: 700;
  font-size: 1.1rem; margin: 0 auto 16px;
}
.process-step h3 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { color: var(--text-muted); font-size: 0.85rem; }
@media (max-width: 600px) {
  .process-steps { grid-template-columns: 1fr 1fr; }
}

/* --- Filter Tabs (Projects) --- */
.filter-tabs {
  display: flex; gap: 8px; justify-content: center; margin-bottom: 32px;
}
.filter-tab {
  padding: 8px 20px; border: 2px solid var(--border);
  border-radius: 20px; background: var(--white);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all var(--transition);
}
.filter-tab.active, .filter-tab:hover {
  border-color: var(--navy); background: var(--navy); color: var(--white);
}