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

:root {
  --burgundy: #6B2D5E;
  --burgundy-hover: #7D3570;
  --burgundy-light: #C478AE;
  --green: #469A3F;
  --off-white: #F5F0EA;
  --warm-white: #FAF7F4;
  --charcoal: #1C1C1E;
  --near-black: #111111;
  --text-dark: #1A1A1A;
  --text-light: #F0EBE3;
  --text-muted-dark: rgb(23, 30, 48);
  --text-muted-light: #A89F97;
  --border-light: rgba(26,26,26,0.10);
  --border-dark: rgba(240,235,227,0.12);
  --radius-card: 16px;
  --radius-pill: 9999px;
  --max-width: 1200px;
  --section-pad: 120px 0;
  --section-pad-mobile: 80px 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Jost', sans-serif;
  background: var(--near-black);
  color: var(--text-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── SECTION FADE-IN ─── */
.section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}
nav.scrolled {
  background: rgba(17,17,17,0.72);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
}
nav.scrolled-light {
  background: rgba(245,240,234,0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
}

.nav-wordmark {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav-wordmark .logo-text,
.nav-wordmark .logo-icon {
  height: 32px;
  width: auto;
  display: block;
}
.nav-wordmark .logo-icon { display: none; }
.wordmark {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--text-light);
  transition: color 0.3s ease;
}
.wordmark-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-muted-light);
  transition: color 0.3s ease;
}

nav:not(.scrolled):not(.scrolled-light) .nav-link { color: var(--text-light); }
nav.scrolled .nav-link { color: var(--text-light); }
nav.scrolled-light .nav-link { color: var(--text-dark); }
nav.scrolled .wordmark { color: var(--text-light); }
nav.scrolled-light .wordmark { color: var(--text-dark); }
nav.scrolled .wordmark-sub { color: var(--text-muted-light); }
nav.scrolled-light .wordmark-sub { color: var(--text-muted-dark); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}
.nav-link {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 14px;
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease;
}
.nav-link:hover { opacity: 0.7; }

.nav-cta {
  background: var(--burgundy);
  color: white;
  border: none;
  border-radius: var(--radius-pill);
  padding: 11px 26px;
  font-size: 14px;
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s ease;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--burgundy-hover); }

.hamburger-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s ease, color 0.3s ease;
  color: var(--text-light);
}
nav.scrolled-light .hamburger-btn {
  border-color: rgba(26,26,26,0.25);
  color: var(--text-dark);
}
.hamburger-btn svg { display: block; }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--near-black);
  z-index: 101;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}
.mobile-menu.open { display: flex; }
.mobile-menu-header {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
}
.mobile-menu a.mobile-link {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 24px;
  color: var(--text-light);
  text-decoration: none;
}
.mobile-menu-close-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(240,235,227,0.2);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: border-color 0.3s ease;
  flex-shrink: 0;
}
.mobile-menu-close-btn:hover { border-color: rgba(240,235,227,0.5); }
.mobile-menu-close-btn svg { display: block; }

/* ─── CONTAINER ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
}

/* ─── EYELINE ─── */
.eyeline {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.16em;
  color: var(--burgundy);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}

/* Eyelines on dark backgrounds use the lighter shade for legibility */
#capabilities .eyeline {
  color: var(--burgundy-light);
}

#hero .eyeline {
  color: var(--green);
}

/* ─── BUTTONS ─── */
.btn-primary {
  background: var(--burgundy);
  color: white;
  border: none;
  border-radius: var(--radius-pill);
  padding: 14px 28px;
  font-size: 15px;
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.3s ease;
}
.btn-primary:hover { background: var(--burgundy-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border: 1.5px solid rgba(240,235,227,0.35);
  border-radius: var(--radius-pill);
  padding: 14px 28px;
  font-size: 15px;
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: border-color 0.3s ease;
}
.btn-secondary:hover { border-color: rgba(240,235,227,0.7); }

/* ─── SECTION 1: HERO ─── */
#hero {
  background: radial-gradient(ellipse 900px 700px at 50% 80%, #1C1714 0%, var(--near-black) 65%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 48px 80px;
}


#hero h1 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 68px;
  color: var(--text-light);
  line-height: 1.15;
  max-width: min(925px, 80vw);
  margin-bottom: 14px;
}

#hero .hero-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 19px;
  color: var(--text-muted-light);
  line-height: 1.75;
  max-width: min(820px, 72vw);
  margin-bottom: 48px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-device {
  margin-top: 64px;
}
.hero-device img {
  max-width: 420px;
  width: min(420px, 72vw);
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 20px;
  box-shadow:
    0 48px 120px rgba(0,0,0,0.6),
    0 16px 40px rgba(0,0,0,0.4),
    0 0 0 1px rgba(255,255,255,0.07);
}

.hero-wave {
  margin-top: 80px;
}

@keyframes wave-flow {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -640; }
}
.wave-path {
  stroke-dasharray: 640;
  stroke-dashoffset: 0;
  animation: wave-flow 4s linear infinite;
}

.hero-chevron {
  margin-top: 56px;
  color: rgba(240,235,227,0.3);
}
@keyframes chevron-pulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}
.hero-chevron svg {
  animation: chevron-pulse 2s ease-in-out infinite;
}

/* ─── SECTION 2: PROBLEM ─── */
#problem {
  background: var(--off-white);
  padding: var(--section-pad);
}
.problem-header {
  text-align: center;
  margin-bottom: 40px;
}
.problem-header h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: var(--text-dark);
  line-height: 1.15;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
  align-items: stretch;
  margin-bottom: 40px;
}
.problem-col {
  border-left: 2px solid var(--burgundy);
  padding-left: 24px;
}
#problem .problem-body {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-dark);
  line-height: 27px;
  margin-bottom: 24px;
}
.problem-list {
  list-style: none;
  margin: 0 0 0 0;
  padding: 0;
}
.problem-list li {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-dark);
  line-height: 27px;
  padding: 10px 0 10px 24px;
  position: relative;
  border-bottom: 1px solid var(--border-light);
}
.problem-list li:first-child { border-top: 1px solid var(--border-light); }
.problem-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--burgundy);
}
.problem-callout {
  background: var(--burgundy);
  border: 1px solid var(--burgundy);
  border-radius: var(--radius-card);
  padding: 24px 40px;
  text-align: center;
  max-width: 640px;
  margin: 48px auto 0;
}
.problem-callout-title {
  display: block;
  font-family: 'Jost', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 10px;
}
.problem-callout p {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  line-height: 27px;
}

/* ─── SECTION 3: HOW IT WORKS ─── */
#how-it-works {
  background: #EDEAE4;
  padding: var(--section-pad);
  text-align: center;
}
#how-it-works h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: var(--text-dark);
  line-height: 1.15;
  margin-bottom: 28px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.hiw-pipeline {
  font-family: 'Jost', sans-serif;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--burgundy);
  margin-bottom: 48px;
}
.hiw-image-box {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.hiw-image-box img {
  width: 100%;
  height: auto;
  display: block;
}
.hiw-distinction-title {
  display: block;
  font-family: 'Jost', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 10px;
}

.hiw-distinction {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  max-width: 900px;
  margin: 48px auto 0;
  line-height: 27px;
  background: var(--burgundy);
  border: 1px solid var(--burgundy);
  border-radius: var(--radius-card);
  padding: 24px 40px;
  text-align: center;
}

.hiw-diagram {
  display: flex;
  align-items: flex-start;
  margin-top: 72px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.hiw-person {
  position: relative;
  flex-shrink: 0;
  width: 56px;
}
.hiw-origin-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--burgundy-light);
  left: 36px;
  top: 48px;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.hiw-origin-line {
  position: absolute;
  left: 41px;
  right: 0;
  top: 48px;
  height: 1.5px;
  background: var(--burgundy-light);
  transform: translateY(-50%);
  opacity: 0.5;
}
.hiw-track {
  flex: 1;
  display: flex;
  align-items: flex-start;
  position: relative;
  min-width: 0;
}
.hiw-track::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--burgundy-light);
  transform: translateY(-50%);
  opacity: 0.5;
}
.hiw-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
}
.hiw-card {
  width: 96px;
  height: 96px;
  border: 1.5px solid rgba(196,120,174,0.3);
  border-radius: 16px;
  background: #28282B;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.hiw-step-title {
  font-family: 'Jost', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 8px;
  text-align: center;
}
.hiw-step-desc {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 12px;
  color: var(--text-muted-light);
  line-height: 1.6;
  text-align: center;
}
.hiw-arrow {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  padding-top: 40px;
  position: relative;
  z-index: 1;
}

/* ─── SECTION 4: PRODUCT ─── */
#product {
  background: var(--near-black);
  padding: var(--section-pad);
  text-align: center;
}
#product h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: var(--text-light);
  line-height: 1.15;
  margin-bottom: 24px;
}
#product .eyeline {
  color: var(--burgundy-light);
}
.product-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin: 0 auto 64px;
  text-align: left;
}
.product-sub-grid .product-sub {
  margin: 0;
}
.product-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-light);
  max-width: min(820px, 72vw);
  margin: 0 auto 64px;
  line-height: 27px;
}
.device-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 72px;
}
.device-gallery-card {
  border: 1px solid var(--burgundy);
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #1A1A1A;
}
.device-gallery-card:first-child {
  background: #EEC9B4;
}
.device-gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product-features-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 80px;
  text-align: left;
}
.product-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.product-list li {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-dark);
  line-height: 27px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
}
.product-list li:first-child { border-top: 1px solid var(--border-light); }
.product-list li strong {
  font-weight: 500;
  color: var(--text-dark);
}
.product-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 48px;
  align-items: center;
}
.spec-col {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.spec-col.right { text-align: left; }
.spec-callout {
  border-left: 2px solid var(--burgundy);
  padding-left: 20px;
  text-align: left;
}
.spec-label {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--burgundy);
  margin-bottom: 8px;
}
.spec-desc {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.65;
}
.product-center-spec {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}
.product-center-spec .spec-callout {
  max-width: 480px;
}
.control-modes {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 56px;
}
.mode-pill {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  text-align: left;
}
.mode-pill strong {
  font-family: 'Jost', sans-serif;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-dark);
  display: block;
  margin-bottom: 2px;
}
.mode-pill span {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 13px;
  color: var(--text-muted-dark);
}

/* ─── SECTION 5: VALIDATION ─── */
#capabilities {
  background: var(--near-black);
  padding: var(--section-pad);
  text-align: center;
}
#capabilities h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: var(--text-light);
  line-height: 1.15;
  margin: 0 auto 24px;
}
#capabilities .val-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-light);
  max-width: min(820px, 72vw);
  margin: 0 auto 72px;
  line-height: 27px;
}
.val-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}
.val-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  padding: 40px 36px;
}
.val-card-title {
  font-family: 'Jost', sans-serif;
  font-weight: 500;
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 16px;
}
.val-card p {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-light);
  line-height: 27px;
}
.ip-callout {
  margin-top: 56px;
  text-align: center;
}
.ip-callout p {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
  line-height: 27px;
}
.timeline-strip {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 64px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.timeline-connector {
  flex: 1;
  height: 1px;
  background: rgba(240,235,227,0.12);
  margin-top: 8px;
  min-width: 20px;
}
.milestone-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.milestone-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(107,45,94,0.4);
  border: 1px solid var(--burgundy);
  flex-shrink: 0;
}
.milestone-dot.active { background: var(--burgundy); }
.milestone-label {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 12px;
  color: var(--text-muted-light);
  text-align: center;
  max-width: 110px;
  margin-top: 12px;
  line-height: 1.4;
}

/* ─── SECTION 6: PARTNERS ─── */
#partners {
  background: #EDEAE4;
  padding: var(--section-pad);
  text-align: center;
}
#partners h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: var(--text-dark);
  line-height: 1.15;
  margin: 0 auto 24px;
}
.partners-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-dark);
  max-width: min(820px, 72vw);
  margin: 0 auto 64px;
  line-height: 27px;
}
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.partner-card {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partner-card img {
  max-width: 100%;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

/* ─── SECTION 7: CONTACT ─── */
#contact {
  background: linear-gradient(135deg, #6B2D5E 0%, #3D1535 100%);
  padding: var(--section-pad);
  text-align: center;
}
.contact-eyeline {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.16em;
  color: white;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}
#contact h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 52px;
  color: white;
  line-height: 1.15;
  margin: 0 auto 24px;
}
.contact-sub {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  max-width: min(820px, 72vw);
  margin: 0 auto 72px;
  line-height: 27px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  text-align: left;
}
.contact-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-card);
  padding: 48px 40px;
}
.contact-card-label {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: block;
}
.contact-card-title {
  font-family: 'Jost', sans-serif;
  font-weight: 500;
  font-size: 22px;
  color: white;
  margin-bottom: 20px;
}
.contact-card p {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  line-height: 27px;
  margin-bottom: 36px;
}
.btn-white {
  background: white;
  color: var(--burgundy);
  border: none;
  border-radius: var(--radius-pill);
  padding: 13px 32px;
  font-size: 15px;
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.3s ease;
}
.btn-white:hover { background: rgba(255,255,255,0.9); }

/* ─── SECTION 7: FAQ ─── */
#faq {
  background: var(--off-white);
  padding: var(--section-pad);
}
.faq-inner {
  max-width: 760px;
  margin: 0 auto;
}
#faq h2 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 48px;
  color: var(--text-dark);
  line-height: 1.15;
  margin-bottom: 56px;
}
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 28px 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 24px;
  user-select: none;
}
.faq-question-text {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 17px;
  color: var(--text-dark);
}
.faq-icon {
  flex-shrink: 0;
  color: var(--burgundy);
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer p {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 18px;
  color: var(--text-muted-dark);
  line-height: 27px;
  padding-top: 16px;
}

/* ─── FOOTER ─── */
footer {
  background: var(--charcoal);
  padding: 56px 48px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  margin-bottom: 4px;
}
.footer-logo .logo-text,
.footer-logo .logo-icon {
  height: 32px;
  width: auto;
  display: block;
}
.footer-logo .logo-icon { display: none; }
.footer-disclaimer {
  margin-top: 12px;
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 13px;
  color: var(--text-muted-light);
  max-width: 340px;
  line-height: 1.6;
}
.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
  flex-wrap: wrap;
}
.footer-links a {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 14px;
  color: var(--text-muted-light);
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer-links a:hover { color: var(--text-light); }
.footer-bottom {
  margin-top: 40px;
  border-top: 1px solid var(--border-dark);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom span {
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 13px;
  color: var(--text-muted-light);
}
.footer-contact {
  display: flex;
  align-items: center;
  gap: 24px;
}
.footer-contact-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 13px;
  color: var(--text-muted-light);
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer-contact-link:hover { color: var(--text-light); }

/* ─── MODAL ─── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #1C1C1E;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  padding: 48px;
  width: 100%;
  max-width: 520px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-dark);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted-light);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.modal-close:hover { border-color: var(--text-muted-light); color: var(--text-light); }
.modal-eyeline {
  display: block;
  font-family: 'Jost', sans-serif;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--burgundy-light);
  margin-bottom: 12px;
}
.modal h3 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 28px;
  color: var(--text-light);
  margin-bottom: 8px;
}
.modal-sub {
  font-family: 'Jost', sans-serif;
  font-size: 15px;
  font-weight: 300;
  color: var(--text-muted-light);
  margin-bottom: 32px;
  line-height: 1.6;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.form-group label {
  font-family: 'Jost', sans-serif;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-light);
  letter-spacing: 0.02em;
}
.form-optional {
  color: var(--text-muted-light);
  font-weight: 300;
}
.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-dark);
  border-radius: 10px;
  padding: 12px 16px;
  font-family: 'Jost', sans-serif;
  font-size: 15px;
  font-weight: 300;
  color: var(--text-light);
  outline: none;
  transition: border-color 0.2s ease;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted-light); opacity: 0.6; }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--burgundy-light); }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group select {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-dark);
  border-radius: 10px;
  padding: 12px 16px;
  font-family: 'Jost', sans-serif;
  font-size: 15px;
  font-weight: 300;
  color: var(--text-light);
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 7L11 1' stroke='%23A89F97' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}
.form-group select option { background: #1C1C1E; color: var(--text-light); }
.form-group select:focus { border-color: var(--burgundy-light); }
.form-group select option[value=""][disabled] { color: var(--text-muted-light); }
.form-submit { width: 100%; margin-top: 8px; text-align: center; }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 0;
  gap: 16px;
}
.form-success.visible { display: flex; }
.form-success h3 {
  font-family: 'Jost', sans-serif;
  font-weight: 400;
  font-size: 24px;
  color: var(--text-light);
}
.form-success p {
  font-family: 'Jost', sans-serif;
  font-size: 15px;
  font-weight: 300;
  color: var(--text-muted-light);
  line-height: 1.6;
  max-width: 340px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .nav-wordmark .logo-text { display: none; }
  .nav-wordmark .logo-icon { display: block; }
  .footer-logo .logo-text { display: none; }
  .footer-logo .logo-icon { display: block; }

  nav { padding: 16px 24px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger-btn { display: flex; }

  #hero { padding: 100px 24px 60px; }
  #hero h1 { font-size: 42px; max-width: 100%; }
  #hero .hero-sub { font-size: 17px; }

  .container { padding: 0 24px; }

  #problem { padding: var(--section-pad-mobile); }
  .problem-grid { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }

  .problem-header h2 { font-size: 36px; }
  .problem-callout { padding: 28px 24px; }


  #how-it-works { padding: var(--section-pad-mobile); }
  #how-it-works h2 { font-size: 36px; }

  #product { padding: var(--section-pad-mobile); }
  #product h2 { font-size: 36px; }
  .product-features-cols { grid-template-columns: 1fr; gap: 0; }
  .product-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .product-layout .spec-col { order: 2; }
  .product-layout .device-visual { order: 1; }
  .product-layout .spec-col.right { order: 3; }
  .spec-callout { text-align: left; }

  #capabilities { padding: var(--section-pad-mobile); }
  #capabilities h2 { font-size: 36px; }
  .val-cards { grid-template-columns: 1fr; }

  #partners { padding: var(--section-pad-mobile); }
  #partners h2 { font-size: 36px; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .partner-card { padding: 28px 24px; }

  #contact { padding: var(--section-pad-mobile); }
  #contact h2 { font-size: 36px; }
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }

  #faq { padding: var(--section-pad-mobile); }
  #faq h2 { font-size: 36px; }

  footer { padding: 48px 24px; }
  .footer-top {
    flex-direction: column;
    gap: 32px;
  }
  .footer-links { flex-direction: column; gap: 16px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}