:root {
  --bg: #FDFDFD;
  --bg-subtle: #F6F7F9;
  --bg-card: #FFFFFF;
  --text-primary: #121417;
  --text-secondary: #5E6573;
  --text-muted: #8B93A0;
  --border-light: #E8EBF0;
  --border-dark: #121417;
  --accent: #0F172A;
  --font-serif: 'Space Grotesk', sans-serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 90%;
  max-width: 1240px;
  margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.3rem;
  line-height: 1.25;
  margin-bottom: 1rem;
}

p.lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.eyebrow {
  display: block;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Header & Nav */
.site-header {
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border-light);
  background: rgba(253, 253, 253, 0.95);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  display: block;
  object-fit: contain;
  background: transparent;
  border: none;
}

.logo-type {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
}

.logo-type span {
  font-weight: 400;
  color: var(--text-secondary);
}

.main-nav {
  display: flex;
  gap: 2.2rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
}

.ig-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  transition: all 0.2s ease;
}

.ig-btn:hover {
  border-color: var(--text-primary);
}

/* Buttons */
.cta-row {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn-dark {
  background: var(--text-primary);
  color: #FFF;
  text-decoration: none;
  padding: 0.85rem 1.8rem;
  border-radius: 4px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

.btn-dark:hover {
  opacity: 0.88;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
  padding: 0.85rem 1.8rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-outline:hover {
  border-color: var(--text-primary);
}

.link-arrow {
  display: inline-block;
  margin-top: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--text-primary);
  padding-bottom: 2px;
}

/* Hero */
.hero-section {
  padding: 5rem 0 6rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  border-radius: 8px;
  display: block;
  box-shadow: 0 15px 40px rgba(0,0,0,0.06);
}

.media-caption {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

/* Brands & Protocols */
.brands-section {
  padding: 3rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-subtle);
}

.brands-header {
  text-align: center;
  margin-bottom: 2rem;
}

.brands-header span {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--text-muted);
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.brand-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 1.5rem 1.2rem;
  border-radius: 6px;
  text-align: center;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.brand-item:hover {
  border-color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.brand-logo-wrap {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.8rem;
}

.brand-svg {
  height: 32px;
  max-width: 110px;
  display: block;
}

.brand-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-item small {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Sections */
.section {
  padding: 6rem 0;
}

.border-top {
  border-top: 1px solid var(--border-light);
}

.bg-light {
  background: var(--bg-subtle);
}

.section-title-wrap {
  max-width: 650px;
  margin-bottom: 4rem;
}

.section-title-wrap p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.pillar-card {
  border-top: 2px solid var(--text-primary);
  padding-top: 1.8rem;
}

.pillar-num {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
  margin-bottom: 1rem;
}

.pillar-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.pillar-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Split Feature */
.split-feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4.5rem;
  align-items: center;
  margin-bottom: 6rem;
}

.split-feature:last-child {
  margin-bottom: 0;
}

.split-feature.reverse {
  grid-template-columns: 1fr 1.2fr;
}

.split-feature.reverse .split-img {
  order: 2;
}

.split-feature.reverse .split-text {
  order: 1;
}

.split-img img {
  width: 100%;
  border-radius: 8px;
  display: block;
}

.spec-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.spec-list li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.4rem;
}

.spec-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--text-primary);
}

/* Form */
.form-panel {
  background: var(--bg-card);
  padding: 3rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  max-width: 650px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--bg);
  outline: none;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--text-primary);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-light);
  padding: 5rem 0 2rem;
  background: var(--bg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.brand-col p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin: 1.2rem 0;
  max-width: 320px;
}

.domain-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  background: var(--bg-subtle);
  border-radius: 4px;
  color: var(--text-muted);
}

.footer-col h4 {
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-cta {
  font-weight: 600;
  color: var(--text-primary) !important;
  display: inline-block;
  margin-top: 0.5rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .hero-grid, .split-feature, .split-feature.reverse, .pillars-grid, .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .split-feature.reverse .split-img {
    order: 1;
  }
  .split-feature.reverse .split-text {
    order: 2;
  }
  .main-nav {
    display: none;
  }
  h1 {
    font-size: 2.4rem;
  }
}