:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --soft: #e2e8f0;
  --accent: #2563eb;
  --dark: #020617;
  --dark-soft: #101827;
  --radius: 28px;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section-padding { padding: 110px 0; }
.section-padding.compact { padding-top: 80px; }
.muted { background: #eef4fb; }
.hidden { display: none !important; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  backdrop-filter: blur(18px);
  background: rgba(248, 250, 252, 0.82);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}
.navbar {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.04em; font-size: 1.2rem; }
.logo-mark { width: 34px; height: 34px; border-radius: 12px; display: grid; place-items: center; background: var(--dark); color: #fff; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 0.92rem; font-weight: 600; color: #334155; }
.nav-links a:hover { color: var(--accent); }
.nav-cta { padding: 11px 18px; color: #fff !important; border-radius: 999px; background: var(--dark); }
.mobile-toggle { display: none; border: 0; background: transparent; font-size: 1.7rem; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 70% 20%, rgba(37, 99, 235, 0.16), transparent 34%),
    linear-gradient(180deg, #fff, #f8fafc);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(15,23,42,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 72%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.03fr 0.97fr; gap: 60px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 800; text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.76rem; }
.eyebrow.light { color: #93c5fd; }
h1, h2, h3 { line-height: 1.05; margin: 0; letter-spacing: -0.055em; }
h1 { font-size: clamp(3rem, 7vw, 6.8rem); }
h2 { font-size: clamp(2.1rem, 4vw, 4.2rem); }
h3 { font-size: 1.35rem; }
p { color: var(--muted); margin: 0; }
.hero-copy p { margin-top: 24px; font-size: 1.22rem; max-width: 650px; }
.hero-actions, .selector-actions, .contact-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.btn { border: 0; border-radius: 999px; padding: 14px 22px; cursor: pointer; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; transition: transform .25s ease, box-shadow .25s ease, background .25s ease; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--accent); color: #fff; box-shadow: 0 14px 30px rgba(37,99,235,0.25); }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--soft); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--soft); }
.light-btn { background: #fff; color: var(--dark); }
.outline-light { border: 1px solid rgba(255,255,255,0.3); color: #fff; background: transparent; }
.hero-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 46px; max-width: 620px; }
.hero-metrics div { padding: 18px; border: 1px solid var(--soft); background: rgba(255,255,255,0.72); border-radius: 22px; }
.hero-metrics strong { display: block; font-size: 1.55rem; letter-spacing: -0.05em; }
.hero-metrics span { color: var(--muted); font-size: 0.86rem; }

.blueprint-card { position: relative; height: 620px; border-radius: 42px; background: linear-gradient(145deg, #0f172a, #020617); overflow: hidden; box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,0.12); }
.blueprint-card::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px); background-size: 36px 36px; }
.shaft { position: absolute; left: 22%; top: 10%; width: 190px; height: 480px; border: 1px solid rgba(147,197,253,0.4); border-radius: 18px; }
.rail { position: absolute; top: 0; bottom: 0; width: 2px; background: rgba(147,197,253,0.45); }
.rail-left { left: 46px; } .rail-right { right: 46px; }
.cabin { position: absolute; left: 50%; top: 44%; transform: translateX(-50%); width: 94px; height: 138px; border-radius: 18px; background: linear-gradient(180deg, #dbeafe, #60a5fa); box-shadow: 0 0 50px rgba(96,165,250,0.45); animation: floatCabin 6s ease-in-out infinite; }
@keyframes floatCabin { 0%,100%{ top: 16%; } 50%{ top: 58%; } }
.escalator-visual { position: absolute; right: 12%; bottom: 18%; width: 260px; height: 160px; transform: skewY(-24deg); border-bottom: 9px solid #60a5fa; border-left: 9px solid #60a5fa; }
.escalator-visual span { display: block; height: 16px; width: 200px; margin: 12px 0 0 30px; background: rgba(255,255,255,0.22); border-radius: 99px; }
.floating-spec { position: absolute; padding: 10px 14px; border-radius: 999px; background: rgba(255,255,255,0.12); color: #e0f2fe; border: 1px solid rgba(255,255,255,0.18); backdrop-filter: blur(10px); font-size: 0.82rem; font-weight: 700; }
.spec-one { top: 16%; right: 10%; } .spec-two { bottom: 11%; left: 10%; } .spec-three { top: 50%; right: 12%; }

.section-heading { text-align: center; max-width: 820px; margin: 0 auto 54px; }
.section-heading p { margin-top: 18px; font-size: 1.08rem; }
.split-heading { display: grid; grid-template-columns: 1fr 0.78fr; gap: 40px; align-items: end; margin-bottom: 46px; }
.split-heading p { font-size: 1.05rem; }
.selector-grid, .category-grid, .steps-grid, .solution-grid, .blog-grid, .dark-card-grid { display: grid; gap: 22px; }
.selector-grid { grid-template-columns: repeat(3, 1fr); }
.filter-card, .category-card, .step-card, .solution-card, .blog-card, .contact-card { background: var(--surface); border: 1px solid var(--soft); border-radius: var(--radius); padding: 28px; box-shadow: 0 18px 50px rgba(15,23,42,0.06); }
.card-icon { width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center; background: #eff6ff; margin-bottom: 18px; }
.chip-group { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip-group button { border: 1px solid var(--soft); background: #fff; border-radius: 999px; padding: 9px 12px; color: #334155; cursor: pointer; transition: .2s; }
.chip-group button.active, .chip-group button:hover { background: var(--dark); color: #fff; border-color: var(--dark); }
.recommendation-status { text-align: center; color: var(--muted); margin: 26px 0; font-weight: 600; }
.recommendation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.recommend-card { background: #fff; border: 1px solid var(--soft); border-radius: var(--radius); padding: 24px; box-shadow: 0 18px 50px rgba(15,23,42,0.08); }
.recommend-card .score { display: inline-flex; background: #dbeafe; color: #1d4ed8; padding: 7px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 800; margin-bottom: 14px; }
.recommend-card ul, .solution-card ul, .dark-card ul { padding-left: 18px; color: var(--muted); margin-bottom: 0; }
.recommend-meta { display: grid; gap: 10px; margin: 16px 0; }
.recommend-meta div { padding: 10px 12px; border-radius: 14px; background: #f8fafc; font-size: 0.9rem; }

.category-grid { grid-template-columns: repeat(3, 1fr); }
.category-card { min-height: 340px; display: flex; flex-direction: column; }
.category-card p { margin: 14px 0 20px; }
.category-card a { color: var(--accent); font-weight: 800; margin-top: auto; }
.category-visual { height: 130px; border-radius: 22px; margin-bottom: 24px; background: linear-gradient(135deg, #dbeafe, #fff); position: relative; overflow: hidden; }
.elevator-mini::after { content:""; position:absolute; left:42%; top:20%; width:54px; height:82px; border-radius:14px; background:#2563eb; box-shadow: 0 0 0 999px rgba(37,99,235,0.04); }
.escalator-mini::after { content:""; position:absolute; left:20%; bottom:35px; width:190px; height:10px; background:#2563eb; transform:rotate(-20deg); border-radius:99px; }
.travelator-mini::after { content:""; position:absolute; left:15%; right:15%; bottom:42%; height:16px; background:#2563eb; border-radius:99px; }
.steps-grid { grid-template-columns: repeat(4, 1fr); }
.step-card span { color: var(--accent); font-weight: 900; font-size: 0.86rem; }
.step-card h3 { margin: 12px 0; }
.solution-grid { grid-template-columns: repeat(3, 1fr); }
.solution-card h3 { margin-bottom: 12px; }
.solution-tag { display: inline-flex; padding: 7px 10px; border-radius: 999px; background: #f1f5f9; font-weight: 800; color: #334155; font-size: 0.76rem; margin-bottom: 16px; }
.solution-card .btn { margin-top: 18px; width: 100%; }
.dark-section { background: var(--dark); color: #fff; }
.dark-section p { color: #cbd5e1; }
.dark-card-grid { grid-template-columns: repeat(3, 1fr); }
.dark-card { background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius); padding: 30px; }
.dark-card ul { color: #cbd5e1; }
.travelator-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 36px; align-items: center; }
.travelator-visual { height: 430px; border-radius: 38px; background: linear-gradient(140deg,#fff,#dbeafe); border: 1px solid var(--soft); position: relative; overflow: hidden; box-shadow: var(--shadow); }
.travelator-visual::before { content:""; position:absolute; left:8%; right:8%; top:48%; height:42px; border-radius:999px; background:#0f172a; transform:skewX(-18deg); }
.travelator-visual::after { content:""; position:absolute; left:14%; right:14%; top:52%; height:4px; background:#60a5fa; transform:skewX(-18deg); box-shadow:0 20px 0 #60a5fa, 0 -20px 0 #60a5fa; }
.travelator-content { display: grid; gap: 16px; }
.feature-row { background: #fff; border: 1px solid var(--soft); border-radius: 22px; padding: 20px; display: grid; gap: 4px; }
.feature-row span { color: var(--muted); }
.form-shell { display: grid; grid-template-columns: 0.86fr 1.14fr; gap: 40px; align-items: start; }
.form-intro { position: sticky; top: 110px; }
.form-intro p { margin-top: 18px; }
.estimation-form { background: #fff; border: 1px solid var(--soft); border-radius: 34px; padding: 30px; box-shadow: var(--shadow); }
.form-progress { height: 8px; background: #e2e8f0; border-radius: 999px; overflow: hidden; margin-bottom: 28px; }
.form-progress span { display: block; height: 100%; width: 25%; background: var(--accent); border-radius: inherit; transition: width .3s; }
.form-step { display: none; }
.form-step.active { display: grid; gap: 18px; }
label { color: #334155; font-weight: 700; display: grid; gap: 8px; }
input, select, textarea { width: 100%; border: 1px solid var(--soft); border-radius: 16px; padding: 14px 16px; background: #f8fafc; color: var(--text); outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); background: #fff; }
textarea { min-height: 120px; resize: vertical; }
.form-controls { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }
.form-message { margin-top: 16px; font-weight: 700; color: #16a34a; }
.blog-grid { grid-template-columns: repeat(4, 1fr); }
.blog-card span { display:inline-flex; color: var(--accent); background:#eff6ff; padding:7px 10px; border-radius:999px; font-weight:800; font-size:.76rem; margin-bottom:16px; }
.blog-card h3 { margin-bottom: 14px; }
.contact-section { background: linear-gradient(135deg, #020617, #0f172a); color: #fff; }
.contact-section p { color: #cbd5e1; margin-top: 18px; }
.contact-grid { display: grid; grid-template-columns: 1fr 0.82fr; gap: 50px; align-items: center; }
.contact-card label { color: #e2e8f0; }
.contact-card { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.12); display: grid; gap: 16px; }
.contact-card input, .contact-card select, .contact-card textarea { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.16); }
.contact-card option { color: var(--text); }
.floating-cta { position: fixed; right: 20px; bottom: 20px; z-index: 80; padding: 13px 18px; border-radius: 999px; background: var(--dark); color: #fff; font-weight: 900; box-shadow: 0 16px 40px rgba(2,6,23,0.25); }
.footer { background: #fff; border-top: 1px solid var(--soft); padding: 60px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.7fr 0.7fr 1fr; gap: 30px; }
.footer h4 { margin: 0 0 14px; }
.footer a:not(.logo) { display: block; color: var(--muted); margin: 8px 0; }
.footer-bottom { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--soft); color: var(--muted); }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .08s; } .delay-2 { transition-delay: .16s; } .delay-3 { transition-delay: .24s; }

@media (max-width: 980px) {
  .nav-links { position: fixed; top: 78px; left: 20px; right: 20px; display: none; flex-direction: column; align-items: stretch; background: #fff; padding: 22px; border: 1px solid var(--soft); border-radius: 24px; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: block; }
  .hero-grid, .split-heading, .selector-grid, .category-grid, .steps-grid, .solution-grid, .dark-card-grid, .travelator-layout, .form-shell, .blog-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .blueprint-card { height: 480px; }
  .hero-metrics { grid-template-columns: 1fr; }
  .recommendation-grid { grid-template-columns: 1fr 1fr; }
  .form-intro { position: static; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1180px); }
  .section-padding { padding: 72px 0; }
  .recommendation-grid { grid-template-columns: 1fr; }
  .hero-actions, .selector-actions, .form-controls { flex-direction: column; }
  .btn { width: 100%; }
  .floating-cta { left: 14px; right: 14px; text-align: center; }
  .blueprint-card { height: 390px; border-radius: 28px; }
  .shaft { left: 12%; transform: scale(.82); transform-origin: top left; }
  .escalator-visual { right: 6%; transform: scale(.72) skewY(-24deg); transform-origin: bottom right; }
}

/* SEO content section */
.seo-section {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.seo-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 1.5rem;
  padding: 1.5rem;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.06);
}

.seo-card h3 {
  margin-bottom: 0.75rem;
}

.seo-card p {
  color: #475569;
  line-height: 1.75;
}

@media (max-width: 1024px) {
  .seo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .seo-grid {
    grid-template-columns: 1fr;
  }
}