/* ============================================================
   BACKBONE SYSTEMS — styles.css
   ============================================================ */

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

:root {
  --bg: #111214;
  --bg-card: #181a1e;
  --bg-card-hover: #1e2127;
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(74,222,128,0.35);
  --text: #e8eaed;
  --text-muted: #8b9098;
  --accent: #4ade80;
  --accent-dark: #22c55e;
  --nav-height: 68px;
  --max-w: 1200px;
  --radius: 12px;
  --font: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ---------- UTILITIES ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0a0f0a;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 10px 22px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(74,222,128,0.25);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: 10px;
}

/* Backgrounds */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image: url('assets/bg/grid.svg');
  background-size: 80px 80px;
  background-position: center top;
  opacity: 0.25;
  z-index: 0;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  top: -200px;
  right: -100px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(74,222,128,0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.cta-glow {
  position: absolute;
  inset: 0;
  background-image: url('assets/bg/grid-cta.svg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(17,18,20,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  gap: 40px;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  cursor: pointer;
}
.logo-text {
  font-size: 1.15rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: #fff;
}
.logo-bold { font-weight: 800; }
.logo-sub {
  font-size: 0.55rem;
  letter-spacing: 0.45em;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}
.nav-link {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.93rem;
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.93rem;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.nav-btn:hover, .nav-btn[aria-expanded="true"] {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  background: #1a1d23;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  min-width: 260px;
  display: none;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  animation: dropIn 0.18s ease;
}
.dropdown.open { display: flex; }
@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  border-radius: 8px;
  transition: background 0.15s;
}
.dropdown-item:hover { background: rgba(255,255,255,0.06); }
.di-title { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.di-sub { font-size: 0.78rem; color: var(--text-muted); }

.nav-cta { margin-left: auto; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  gap: 4px;
}
.mobile-menu a {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
}
.mobile-menu a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.mobile-menu .btn-primary { margin-top: 8px; color: #0a0f0a; }
.mobile-menu.open { display: flex; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(74,222,128,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}
.hero-text { flex: 1; max-width: 560px; }
.hero-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 24px;
  display: block;
}
.hero-headline {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.08;
  color: #fff;
  margin-bottom: 36px;
  letter-spacing: -0.02em;
}
.hero-text .btn-primary { margin-top: 4px; }

/* Stack Visual */
.hero-visual {
  flex: 0 0 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img {
  width: 100%;
  max-width: 650px;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
  transform: scale(1.1);
}
.stack-visual {
  display: flex;
  flex-direction: column-reverse;
  gap: 0;
  perspective: 800px;
}
.stack-layer {
  display: flex;
  align-items: center;
  padding: 0 24px;
  height: 50px;
  border: 1px solid rgba(74,222,128,0.25);
  border-bottom: none;
  border-radius: 0;
  background: linear-gradient(135deg, rgba(74,222,128,0.04) 0%, rgba(74,222,128,0.01) 100%);
  width: 340px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
  cursor: default;
  position: relative;
  animation: layerFloat 3s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.15s);
}
.stack-layer:first-child { border-bottom: 1px solid rgba(74,222,128,0.25); border-radius: 0 0 8px 8px; }
.stack-layer:last-child { border-radius: 8px 8px 0 0; }
.stack-layer::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 14px;
  opacity: 0.5;
  transition: opacity 0.3s;
  flex-shrink: 0;
}
.stack-layer:hover {
  background: rgba(74,222,128,0.08);
  color: var(--accent);
  border-color: rgba(74,222,128,0.5);
}
.stack-layer:hover::before { opacity: 1; }

@keyframes layerFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ---------- INTRO ---------- */
.intro {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.intro-left h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.intro-right p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.product-banner {
  background-color: var(--accent);
  color: #111214;
  border-radius: 24px;
  padding: 60px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  margin-bottom: 80px;
  min-height: 400px;
}
.product-banner-text {
  flex: 1;
  max-width: 440px;
  font-size: 1.15rem;
  line-height: 1.6;
  font-weight: 500;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
}
.product-banner-visual {
  flex: 1;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 55%;
  z-index: 1;
}
.pbv-img-1 {
  position: absolute;
  right: -60px;
  top: 60px;
  width: 500px;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}
.pbv-img-2 {
  position: absolute;
  right: 280px;
  top: 160px;
  width: 320px;
  border-radius: 12px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.25);
}

.intro-white-grid {
  color: #111214;
  align-items: start;
}
.intro-icon {
  width: 42px;
  height: auto;
  margin-bottom: 24px;
}
.intro-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.intro-desc {
  font-size: 1.05rem;
  color: #4b5563;
  line-height: 1.6;
}

/* ---------- PRODUCTS ---------- */
.products {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.product-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, transform 0.2s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}
.product-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(74,222,128,0.1);
}
.product-card:hover::before { opacity: 1; }

.pc-icon {
  width: 48px;
  height: 48px;
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}
.product-card p {
  font-size: 0.87rem;
  color: var(--text-muted);
  flex: 1;
  line-height: 1.6;
}
.pc-arrow {
  color: var(--accent);
  font-size: 1.1rem;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s, transform 0.2s;
  display: block;
}
.product-card:hover .pc-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- DEPLOY ---------- */
.deploy {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
.deploy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.deploy-text h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.deploy-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
}
.deploy-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.deploy-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
  cursor: default;
}
.deploy-card:hover, .deploy-card.dc-active {
  border-color: rgba(74,222,128,0.3);
  background: rgba(74,222,128,0.04);
}
.dc-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: background 0.2s;
}
.deploy-card:hover .dc-dot, .deploy-card.dc-active .dc-dot { background: var(--accent); }
.dc-name { font-weight: 600; font-size: 0.95rem; }
.dc-detail { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ---------- ENTERPRISE ---------- */
.enterprise {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
.enterprise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.enterprise-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}
.enterprise-card:hover {
  border-color: rgba(74,222,128,0.25);
  transform: translateY(-2px);
}
.ec-icon {
  width: 44px;
  height: 44px;
  background: rgba(74,222,128,0.06);
  border: 1px solid rgba(74,222,128,0.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.enterprise-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.enterprise-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(74,222,128,0.06) 0%, transparent 65%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
}
.cta-inner h2 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

/* ---------- FOOTER ---------- */
.footer {
  background: #0d0f11;
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.linkedin-link {
  color: var(--text-muted);
  transition: color 0.2s;
}
.linkedin-link:hover { color: var(--accent); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .hero-visual { flex: 0 0 340px; }
  .stack-layer { width: 280px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .enterprise-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero-inner {
    flex-direction: column;
    padding: 60px 24px;
    text-align: center;
  }
  .hero-visual { flex: none; width: 100%; }
  .hero-img {
    transform: scale(0.9);
    margin: 40px auto 0;
    max-width: 100%;
  }
  .stack-visual { align-items: center; }
  .stack-layer { width: 100%; max-width: 300px; }

  .intro-grid, .deploy-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-grid { grid-template-columns: 1fr; }
  .enterprise-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
  .cta-inner h2 { font-size: 2rem; }

  .product-banner {
    padding: 40px 24px;
    flex-direction: column;
    min-height: auto;
    margin-bottom: 40px;
  }
  .product-banner-text {
    max-width: 100%;
    margin-bottom: 20px;
  }
  .product-banner-visual {
    position: relative !important;
    width: 100%;
    height: 380px;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
    margin-top: 30px;
  }
  .pbv-img-1 {
    width: 90% !important;
    right: -10% !important;
    top: 0 !important;
    left: auto !important;
    bottom: auto !important;
  }
  .pbv-img-2 {
    width: 65% !important;
    left: -5% !important;
    right: auto !important;
    top: 140px !important;
    bottom: auto !important;
  }
}

/* ============================================================
   PRODUCT PAGES
   ============================================================ */

/* Product hero (sub-pages) */
.product-hero {
  position: relative;
  padding: calc(var(--nav-height) + 80px) 0 80px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.product-hero .grid-bg { opacity: 0.6; }
.product-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { opacity: 0.4; }

.product-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: #fff;
  max-width: 700px;
  margin-bottom: 24px;
}
.product-hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.75;
  margin-bottom: 40px;
}

/* Feature tabs */
.feature-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
}
.feat-tab {
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  text-decoration: none;
}
.feat-tab:hover, .feat-tab.active {
  background: rgba(74,222,128,0.1);
  border-color: rgba(74,222,128,0.4);
  color: var(--accent);
}

/* Feature sections */
.feature-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}
.feature-section:last-of-type { border-bottom: none; }

.feature-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.feature-grid.reversed { direction: rtl; }
.feature-grid.reversed > * { direction: ltr; }

.feature-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-section h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.feature-section .feature-desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 36px;
}
.sub-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sub-feature h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sub-feature h4::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}
.sub-feature p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  padding-left: 28px;
}

/* Feature visual panel */
.feature-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.feature-visual-inner {
  padding: 40px;
  width: 100%;
}
.fv-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.fv-title::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* Mock UI elements inside feature visuals */
.mock-table { width: 100%; border-collapse: collapse; }
.mock-table th {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.mock-table td {
  padding: 10px 10px;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.mock-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}
.mock-tag.green { background: rgba(74,222,128,0.15); color: var(--accent); }
.mock-tag.yellow { background: rgba(250,204,21,0.15); color: #facc15; }
.mock-tag.red { background: rgba(239,68,68,0.15); color: #ef4444; }
.mock-tag.blue { background: rgba(96,165,250,0.15); color: #60a5fa; }

.mock-bar-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mock-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
}
.mock-bar-label { color: var(--text-muted); min-width: 80px; font-size: 0.75rem; }
.mock-bar-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  overflow: hidden;
}
.mock-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 10px;
  opacity: 0.8;
}
.mock-bar-val { color: var(--text-muted); font-size: 0.75rem; min-width: 32px; text-align: right; }

.mock-flow {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.mock-flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.83rem;
}
.mock-flow-step .step-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(74,222,128,0.12);
  border: 1px solid rgba(74,222,128,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}
.mock-flow-step .step-label { flex: 1; }
.mock-flow-step .step-status { font-size: 0.72rem; }

/* Stats row */
.stats-row {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.stat-item {}
.stat-value {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   DELIVERY PAGE
   ============================================================ */
.delivery-hero {
  position: relative;
  padding: calc(var(--nav-height) + 80px) 0 80px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.delivery-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: #fff;
  max-width: 700px;
  margin-bottom: 24px;
}
.delivery-hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.75;
}

/* Timeline */
.timeline-section { padding: 80px 0; border-bottom: 1px solid var(--border); }
.timeline-steps {
  display: flex;
  gap: 0;
  margin-bottom: 64px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.timeline-step {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 16px;
  cursor: pointer;
}
.timeline-step::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 50%;
  right: -50%;
  height: 1px;
  background: var(--border);
}
.timeline-step:last-child::before { display: none; }
.ts-dot {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.timeline-step.active .ts-dot {
  border-color: var(--accent);
  background: rgba(74,222,128,0.1);
  color: var(--accent);
}
.ts-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s;
}
.timeline-step.active .ts-label { color: var(--text); }

.timeline-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.tc-text h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.tc-text p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
}
.tc-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Project types */
.project-types { padding: 80px 0; }
.project-types-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.project-type-card {
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color 0.2s, transform 0.2s;
}
.project-type-card:hover {
  border-color: rgba(74,222,128,0.3);
  transform: translateY(-3px);
}
.ptc-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(74,222,128,0.3);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 20px;
}
.project-type-card h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.project-type-card p {
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 60px) 32px 80px;
  position: relative;
}
.contact-page .grid-bg { opacity: 0.5; }
.contact-page .hero-glow {
  top: -100px;
  width: 700px;
  height: 500px;
}
.contact-card {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 60px 64px;
  max-width: 600px;
  width: 100%;
  text-align: center;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}
.contact-card h1 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.contact-card .subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 40px;
}
.contact-email-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(74,222,128,0.3);
  padding: 16px 28px;
  border-radius: 12px;
  background: rgba(74,222,128,0.06);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  margin-bottom: 32px;
}
.contact-email-link:hover {
  background: rgba(74,222,128,0.12);
  border-color: rgba(74,222,128,0.5);
  transform: translateY(-2px);
}
.contact-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}
.contact-info {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive additions */
@media (max-width: 768px) {
  .feature-grid, .feature-grid.reversed { grid-template-columns: 1fr; direction: ltr; }
  .timeline-content { grid-template-columns: 1fr; }
  .project-types-grid { grid-template-columns: 1fr; }
  .contact-card { padding: 40px 28px; }
  .product-hero-inner, .delivery-hero .container { padding: 0 20px; }
  .feature-grid { padding: 0 20px; }
}