/* ============================================================
   NEXLANE — INTELLIGENT TRANSPORT SYSTEMS
   Static Website Stylesheet
   Brand: Electrotech Power Solutions (electrotech.co.in)
   Design Language: NEXLANE-DESIGN-LANGUAGE.md
   ============================================================ */

/* ── 1. CSS CUSTOM PROPERTIES ──────────────────────────────── */
:root {
  --et-navy:              #003E76;
  --et-navy-dark:         #002a52;
  --et-navy-mid:          #004f96;
  --et-blue:              #0073C1;
  --et-blue-bright:       #0176C4;
  --et-blue-light:        #EAF3FB;
  --et-white:             #FFFFFF;
  --et-off-white:         #FAFAFB;
  --et-gray-text:         #4A4A4A;
  --et-gray-light:        #E5E5E5;
  --et-gray-mid:          #9AA5B4;
  --et-border:            #D6E4F0;

  --nx-surface-dark:      #13171D;
  --nx-surface-darker:    #0B0E12;
  --nx-accent:            #2E8FFF;
  --nx-accent2:           #FFC838;
  --nx-critical:          #E5384D;
  --nx-good:              #2ECC71;
  --nx-warning:           #F0A93C;

  --font-heading:         'Montserrat', sans-serif;
  --font-body:            'Inter', sans-serif;
  --font-mono:            'JetBrains Mono', monospace;

  --transition-base:      250ms ease;
  --transition-slow:      500ms ease;
  --radius-sm:            6px;
  --radius-md:            12px;
  --radius-lg:            20px;
  --radius-xl:            32px;

  --shadow-sm:            0 2px 8px rgba(0,62,118,0.08);
  --shadow-md:            0 8px 24px rgba(0,62,118,0.12);
  --shadow-lg:            0 20px 48px rgba(0,62,118,0.16);

  --container-max:        1200px;
  --section-pad:          100px;
}

/* ── 2. RESET & BASE ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--et-gray-text);
  background: var(--et-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { color: var(--et-blue); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--et-navy); }
ul { list-style: none; }

/* ── 3. UTILITY ─────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  position: relative;
  padding: var(--section-pad) 0;
  overflow: hidden;
}

.section-alt { background: var(--et-off-white); }
.section-navy { background: var(--et-navy); }

.eyebrow {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--et-blue);
  margin-bottom: 12px;
}

.eyebrow-light { color: rgba(0,115,193,0.85); }

.section-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 42px);
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-heading.white { color: var(--et-white); }

.heading-accent { color: var(--et-blue); }

.heading-rule {
  width: 72px;
  height: 4px;
  background: var(--et-blue);
  margin-bottom: 28px;
  border-radius: 2px;
}

.section-intro {
  font-size: 17px;
  color: var(--et-gray-text);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 48px;
}

.section-intro.light { color: rgba(255,255,255,0.72); max-width: 720px; }

/* ── 4. NAVIGATION ──────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(0, 42, 82, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition-slow);
}

.site-header.scrolled {
  background: rgba(0, 42, 82, 0.99);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: inherit;
}

.nav-logo-img {
  height: 42px;
  width: auto;
  filter: drop-shadow(0 0 8px rgba(0,115,193,0.4));
}

.nav-brand-primary {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 16px;
  color: var(--et-white);
  letter-spacing: 0.08em;
}

.nav-brand-secondary {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 9px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: block;
  line-height: 1;
}

.nav-brand-group {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-links { display: flex; align-items: center; gap: 6px; }

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--et-white);
  background: rgba(255,255,255,0.1);
}

.nav-cta-btn {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--et-white);
  background: var(--et-blue);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
  border: 2px solid var(--et-blue);
}

.nav-cta-btn:hover {
  background: var(--et-blue-bright);
  border-color: var(--et-blue-bright);
  color: var(--et-white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,115,193,0.35);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px; height: 20px;
  background: none; border: none;
  cursor: pointer; padding: 0;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--et-white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ── 5. DIAMOND MOTIF ──────────────────────────────────────── */
.diamond {
  position: absolute;
  transform: rotate(45deg);
  border-radius: 4px;
  pointer-events: none;
}

.hero-diamond-bg {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 55%;
  pointer-events: none;
  overflow: hidden;
}

.diamond-lg {
  width: 500px; height: 500px;
  background: var(--et-navy-mid);
  opacity: 0.45;
  top: -100px; right: -140px;
}

.diamond-md {
  width: 320px; height: 320px;
  background: var(--et-blue);
  opacity: 0.25;
  top: 80px; right: 80px;
}

.diamond-sm {
  width: 180px; height: 180px;
  background: var(--et-gray-light);
  opacity: 0.12;
  top: 250px; right: 240px;
}

/* Section diamonds */
.section-diamond-decor { position: absolute; pointer-events: none; overflow: hidden; }
.section-diamond-decor.top-right { top: 0; right: 0; width: 320px; height: 320px; }
.section-diamond-decor.bottom-left { bottom: 0; left: 0; width: 280px; height: 280px; }
.section-diamond-decor.bottom-right { bottom: 0; right: 0; width: 320px; height: 320px; }

.diamond-decor-navy {
  width: 260px; height: 260px;
  background: var(--et-navy);
  opacity: 0.06;
  top: -80px; right: -80px;
}

.diamond-decor-blue {
  width: 260px; height: 260px;
  background: var(--et-blue);
  opacity: 0.08;
  bottom: -80px; right: -80px;
}

.diamond-decor-blue-tr {
  width: 180px; height: 180px;
  background: var(--et-blue);
  opacity: 0.08;
  top: -40px; right: -40px;
}

/* ── 6. HERO ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--et-navy-dark) 0%, var(--et-navy) 50%, #004f8a 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 80px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  width: 100%;
}

.hero-text { position: relative; z-index: 3; }

.hero-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--et-navy);
  background: var(--nx-accent2);
  padding: 6px 16px;
  border-radius: 40px;
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(38px, 5.5vw, 64px);
  color: var(--et-white);
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-subheadline {
  font-size: clamp(15px, 1.8vw, 18px);
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 40px;
}

.hero-cta-group { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background: var(--et-blue);
  color: var(--et-white);
  border-color: var(--et-blue);
}

.btn-primary:hover {
  background: var(--et-blue-bright);
  border-color: var(--et-blue-bright);
  color: var(--et-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,115,193,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--et-white);
  border-color: rgba(255,255,255,0.45);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--et-white);
  color: var(--et-white);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--et-blue);
  color: var(--et-white);
  border-color: var(--et-blue);
  font-size: 15px;
  padding: 16px 44px;
}

.btn-accent:hover {
  background: var(--et-white);
  color: var(--et-navy);
  border-color: var(--et-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255,255,255,0.25);
}

.btn-full { width: 100%; }

/* Hero visual card */
.hero-visual { display: flex; align-items: center; justify-content: center; }

.hero-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 440px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 180px; height: 180px;
  background: var(--et-blue);
  opacity: 0.12;
  border-radius: 4px;
  transform: rotate(45deg);
}

.hero-card-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}

.hero-card-logo img { height: 52px; width: auto; }

.hero-card-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
  color: var(--et-white);
  letter-spacing: 0.06em;
}

.hero-card-subtitle {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 11px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(20px, 2.5vw, 28px);
  color: var(--et-white);
  line-height: 1.1;
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-heading);
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.45), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.1); }
}

/* ── 7. HIGHLIGHTS ──────────────────────────────────────────── */
.highlights-strip {
  background: var(--et-navy);
  padding: 36px 0;
  border-bottom: 3px solid var(--et-blue);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.highlight-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  color: rgba(255,255,255,0.7);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 12px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: default;
}

.highlight-item:hover {
  color: var(--et-white);
  background: rgba(255,255,255,0.06);
}

.highlight-icon {
  width: 44px; height: 44px;
  background: rgba(0,115,193,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-base);
}

.highlight-item:hover .highlight-icon { background: rgba(0,115,193,0.35); }

.highlight-icon svg { width: 20px; height: 20px; }

/* ── 8. SECTION HEADER ──────────────────────────────────────── */
.section-header {
  margin-bottom: 60px;
}

.section-header.centered { text-align: center; }
.section-header.centered .heading-rule { margin-left: auto; margin-right: auto; }
.section-header.centered .section-intro { margin-left: auto; margin-right: auto; }

/* ── 9. PRODUCT CARDS ───────────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--et-white);
  border: 1px solid var(--et-border);
  border-radius: var(--radius-md);
  padding: 40px 36px;
  position: relative;
  transition: all var(--transition-base);
  border-left: 4px solid var(--et-blue);
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-card::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: var(--et-blue);
  opacity: 0.04;
  border-radius: 4px;
  transform: rotate(45deg);
}

.product-icon {
  width: 60px; height: 60px;
  background: var(--et-blue-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  transition: background var(--transition-base);
}

.product-card:hover .product-icon { background: var(--et-blue); }

.product-icon svg { width: 28px; height: 28px; stroke: var(--et-blue); transition: stroke var(--transition-base); }
.product-card:hover .product-icon svg { stroke: var(--et-white); }

.product-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.product-card .product-tagline {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13px;
  color: var(--et-blue);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  display: block;
}

.product-card p {
  font-size: 14.5px;
  color: var(--et-gray-text);
  line-height: 1.65;
  margin-bottom: 20px;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-features li {
  font-size: 13.5px;
  color: var(--et-gray-text);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.product-features li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 6px; height: 6px;
  background: var(--et-blue);
  border-radius: 50%;
}

.product-status {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 40px;
  margin-top: 16px;
}

.product-status.deployed { background: #e6f7ee; color: #12915B; }
.product-status.development { background: #fff3e0; color: #C77700; }
.product-status.planned { background: var(--et-blue-light); color: var(--et-blue); }

/* ── 10. ANPR PLATFORM ──────────────────────────────────────── */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.platform-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all var(--transition-base);
}

.platform-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(0,115,193,0.5);
  transform: translateY(-4px);
}

.platform-card-icon {
  width: 48px; height: 48px;
  background: rgba(0,115,193,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.platform-card-icon svg { width: 22px; height: 22px; stroke: var(--et-blue); }

.platform-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--et-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.platform-card p {
  font-size: 13.5px;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

.platform-card ul {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.platform-card li {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.platform-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 5px; height: 5px;
  background: var(--et-blue);
  border-radius: 50%;
  opacity: 0.7;
}

/* ── 11. FEATURES GRID ──────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--et-white);
  border: 1px solid var(--et-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all var(--transition-base);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--et-blue);
}

.feature-check {
  width: 40px; height: 40px;
  background: var(--et-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-check svg { width: 18px; height: 18px; stroke: var(--et-white); }

.feature-card h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 13.5px;
  color: var(--et-gray-text);
  line-height: 1.55;
}

/* ── 12. SCREENSHOTS GALLERY ────────────────────────────────── */
.screenshots-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshots-scroll::-webkit-scrollbar { height: 6px; }
.screenshots-scroll::-webkit-scrollbar-track { background: var(--et-off-white); border-radius: 3px; }
.screenshots-scroll::-webkit-scrollbar-thumb { background: var(--et-border); border-radius: 3px; }

.screenshot-card {
  flex: 0 0 clamp(320px, 42vw, 520px);
  scroll-snap-align: start;
  background: var(--nx-surface-darker);
  border: 1px solid var(--et-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: default;
}

.screenshot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.screenshot-frame {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--nx-surface-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.screenshot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.screenshot-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.25);
  padding: 20px;
  text-align: center;
}

.screenshot-placeholder svg { width: 48px; height: 48px; opacity: 0.4; }

.screenshot-placeholder span {
  font-family: var(--font-heading);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.screenshot-caption {
  padding: 16px 18px;
  background: var(--et-white);
}

.screenshot-caption h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.screenshot-caption span {
  font-size: 12px;
  color: var(--et-gray-mid);
}

/* ── 13. ROADMAP TIMELINE ───────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 18px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--et-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--et-white);
  border: 3px solid var(--et-blue);
}

.timeline-dot.completed { background: var(--et-blue); }
.timeline-dot.active { background: var(--nx-accent2); border-color: var(--nx-accent2); }
.timeline-dot.planned { background: var(--et-white); border-color: var(--et-gray-mid); }

.timeline-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.timeline-version {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--et-blue);
  background: var(--et-blue-light);
  padding: 3px 12px;
  border-radius: 4px;
}

.timeline-header strong {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.timeline-tag {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 10px;
  border-radius: 4px;
}

.timeline-tag.done { color: #12915B; background: #e6f7ee; }
.timeline-tag.progress { color: #C77700; background: #fff3e0; }
.timeline-tag.future { color: var(--et-gray-mid); background: var(--et-off-white); }

.timeline-item p {
  font-size: 14px;
  color: var(--et-gray-text);
  line-height: 1.6;
  margin-left: 0;
}

.timeline-items-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.timeline-items-list span {
  font-size: 12px;
  color: var(--et-gray-text);
  background: var(--et-off-white);
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid var(--et-border);
}

/* ── 14. TECH STACK ─────────────────────────────────────────── */
.stack-category { margin-bottom: 40px; }
.stack-category:last-child { margin-bottom: 0; }

.stack-category h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--et-blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stack-tag {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--et-navy);
  background: var(--et-blue-light);
  border: 1px solid rgba(0,115,193,0.2);
  padding: 8px 18px;
  border-radius: 40px;
  transition: all var(--transition-base);
  cursor: default;
}

.stack-tag:hover {
  background: var(--et-blue);
  color: var(--et-white);
  border-color: var(--et-blue);
}

/* ── 15. CTA BAND ──────────────────────────────────────────── */
.cta-band {
  position: relative;
  background: var(--et-navy);
  padding: 80px 0;
  overflow: hidden;
  text-align: center;
}

.cta-diamond-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.cta-diamond-1 {
  width: 300px; height: 300px;
  background: rgba(255,255,255,0.04);
  top: -80px; left: -80px;
  position: absolute;
  transform: rotate(45deg);
  border-radius: 4px;
}

.cta-diamond-2 {
  width: 200px; height: 200px;
  background: var(--et-blue);
  opacity: 0.15;
  bottom: -60px; right: 10%;
  position: absolute;
  transform: rotate(45deg);
  border-radius: 4px;
}

.cta-content { position: relative; z-index: 2; }

.cta-heading {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 42px);
  color: var(--et-white);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

/* ── 16. CONTACT ────────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 28px; }

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 48px; height: 48px;
  background: var(--et-blue-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg { width: 22px; height: 22px; stroke: var(--et-blue); }

.contact-item strong {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 5px;
}

.contact-item p, .contact-item a {
  font-size: 14.5px;
  color: var(--et-gray-text);
  line-height: 1.6;
}

.contact-form {
  background: var(--et-off-white);
  border: 1px solid var(--et-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--et-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--et-gray-text);
  background: var(--et-white);
  border: 1.5px solid var(--et-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  outline: none;
  transition: all var(--transition-base);
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--et-blue);
  box-shadow: 0 0 0 3px rgba(0,115,193,0.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* ── 17. FOOTER ─────────────────────────────────────────────── */
.site-footer {
  position: relative;
  background: var(--et-navy-dark);
  color: rgba(255,255,255,0.6);
  overflow: hidden;
}

.footer-diamond-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.footer-diamond {
  width: 500px; height: 500px;
  background: rgba(255,255,255,0.03);
  bottom: -200px; right: -150px;
  position: absolute;
  transform: rotate(45deg);
  border-radius: 4px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: relative;
}

.footer-brand { position: relative; z-index: 1; }

.footer-logo-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.footer-logo-img { height: 48px; width: auto; }

.footer-brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 17px;
  color: var(--et-white);
  letter-spacing: 0.08em;
}

.footer-brand-sub {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 9px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13px;
  color: var(--et-blue);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(255,255,255,0.45);
}

.footer-links-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--et-white);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.footer-links-col a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-base);
}

.footer-links-col a:hover { color: var(--et-blue); }

.footer-contact-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--et-white);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.footer-contact-col p, .footer-contact-col a {
  font-size: 13.5px;
  color: rgba(255,255,255,0.45);
  line-height: 1.6;
  margin-bottom: 8px;
  display: block;
  position: relative;
  z-index: 1;
}

.footer-contact-col a:hover { color: var(--et-blue); }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.footer-slogan {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 13px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.04em;
  font-style: italic;
}

.footer-copy {
  font-size: 12.5px;
  color: rgba(255,255,255,0.25);
}

/* ── 18. MODAL ─────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,30,60,0.7);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-box {
  background: var(--et-white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: modalIn 300ms ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-icon {
  width: 72px; height: 72px;
  background: #EBF8EE;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}

.modal-icon svg {
  width: 36px; height: 36px;
  stroke: #2E7D32;
}

.modal-box h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  color: var(--et-navy);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.modal-box p {
  font-size: 15px;
  color: var(--et-gray-text);
  line-height: 1.6;
  margin-bottom: 28px;
}

/* ── 19. RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1100px) {
  .highlights-grid { grid-template-columns: repeat(3, 1fr); }
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --section-pad: 64px; }

  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(0, 30, 60, 0.98);
    backdrop-filter: blur(14px);
    flex-direction: column;
    padding: 20px 20px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  .nav-links.open { display: flex; }
  .nav-link, .nav-cta-btn { width: 100%; text-align: center; padding: 14px; font-size: 13px; }

  .hero-content { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero-subheadline { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero-cta-group { justify-content: center; }
  .hero-visual { display: none; }
  .hero-headline { font-size: clamp(28px, 8vw, 48px); }

  .products-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  :root { --section-pad: 48px; }
  .hero-headline { font-size: clamp(24px, 10vw, 36px); }
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .contact-form { padding: 28px 20px; }
  .btn { width: 100%; }
  .hero-cta-group { flex-direction: column; }

  .screenshot-card { flex: 0 0 85vw; }
}