/* =============================================
   AO Robotics — style.css  v2
   ============================================= */

:root {
  --navy:      #0F3D91;
  --navy-deep: #0a2d6e;
  --blue:      #2563EB;
  --dark:      #0D1117;
  --mid:       #374151;
  --gray:      #6B7280;
  --subtle:    #9CA3AF;
  --border:    #E4E8F0;
  --light-bg:  #F6F8FC;
  --white:     #FFFFFF;

  --font-head: 'Hanken Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --max-w: 1160px;
  --radius: 12px;
  --t: 0.2s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Type scale ── */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--dark);
}
h1 { font-size: clamp(2.8rem, 5.5vw, 5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.35rem); letter-spacing: -0.02em; font-weight: 700; }
p  { color: var(--gray); line-height: 1.75; }
p.lead { font-size: 1.1rem; color: var(--mid); line-height: 1.7; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  transition: background var(--t), transform var(--t), box-shadow var(--t), color var(--t);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

.btn-primary {
  background: var(--navy);
  color: #fff;
  box-shadow: 0 1px 3px rgba(15,61,145,.15);
}
.btn-primary:hover {
  background: var(--navy-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(15,61,145,.28);
}

.btn-white {
  background: #fff;
  color: var(--navy);
  font-weight: 700;
}
.btn-white:hover {
  background: #f0f4ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}

.btn-blue {
  background: var(--blue);
  color: #fff;
}
.btn-blue:hover {
  background: #1d52d0;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,99,235,.3);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), box-shadow var(--t);
}
.site-header.scrolled {
  border-color: var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
}
.logo-img {
  height: 42px;
  width: auto;
  display: block;
}
/* text fallback logo (kept for safety, hidden when image used) */
.logo-ao {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--navy);
  letter-spacing: -0.05em;
}
.logo-robotics {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 1rem;
  color: var(--mid);
  letter-spacing: 0.04em;
  margin-left: 7px;
  padding-bottom: 1px;
}
.nav-drawer { display: contents; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.main-nav a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--gray);
  padding: 7px 13px;
  border-radius: 7px;
  transition: color var(--t), background var(--t);
}
.main-nav a:hover { color: var(--dark); background: var(--light-bg); }
.main-nav a.active { color: var(--navy); font-weight: 700; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 9px;
  border-radius: 7px;
  transition: background var(--t);
}
.menu-toggle:hover { background: var(--light-bg); }
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO — asymmetric editorial layout ── */
.hero {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

/* geometric background lines */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,.06) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 100% at 70% 50%, black 30%, transparent 80%);
}
.hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,.18) 0%, transparent 65%);
  pointer-events: none;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 80px;
  align-items: center;
  padding: 100px 0 96px;
}

.hero-left {}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 28px;
}
.hero-kicker::before {
  content: '';
  width: 28px;
  height: 1px;
  background: rgba(255,255,255,0.3);
}

.hero h1 {
  color: #fff;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
}
.hero h1 em {
  font-style: normal;
  color: rgba(255,255,255,0.35);
}

.hero-desc {
  color: rgba(255,255,255,0.58);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-trust {
  margin-top: 60px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  gap: 0;
}
.hero-trust-item {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,.35);
  letter-spacing: 0.06em;
  padding: 0 20px 0 0;
}
.hero-trust-sep {
  width: 1px;
  height: 14px;
  background: rgba(255,255,255,.15);
  margin-right: 20px;
  flex-shrink: 0;
}

/* Hero right panel */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-stat-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 24px 28px;
  backdrop-filter: blur(8px);
  transition: background var(--t), border-color var(--t);
}
.hero-stat-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.18);
}
.hero-stat-card-label {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 10px;
}
.hero-stat-card h3 {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.hero-stat-card p {
  color: rgba(255,255,255,.45);
  font-size: 0.85rem;
  line-height: 1.6;
}
.hero-stat-card .card-arrow {
  margin-top: 16px;
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255,255,255,.4);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--t), gap var(--t);
}
.hero-stat-card:hover .card-arrow {
  color: rgba(255,255,255,.7);
  gap: 10px;
}

/* ── Sections ── */
.section { padding: 100px 0; }
.section-sm { padding: 72px 0; }
.section-dark { background: var(--dark); }
.section-navy { background: var(--navy); }
.section-light { background: var(--light-bg); }

.section-label {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}

.section-header { max-width: 680px; margin-bottom: 60px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; }
.section-header.centered { text-align: center; margin-left: auto; margin-right: auto; }

/* ── Value cards (why us) ── */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.value-card {
  background: var(--white);
  padding: 44px 36px;
  position: relative;
  transition: background var(--t);
}
.value-card:hover { background: var(--light-bg); }
.value-num {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--navy);
  opacity: 0.08;
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.04em;
}
.value-card h3 { margin-bottom: 10px; font-size: 1.05rem; }
.value-card p  { font-size: 0.92rem; }

/* ── Product cards ── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--white);
  display: flex;
  flex-direction: column;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 56px rgba(15,61,145,.12);
  border-color: rgba(15,61,145,.2);
}
.product-card-vis {
  aspect-ratio: 1 / 1;
  background: #0a0e1a;
  position: relative;
  overflow: hidden;
}
.product-card-vis img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
.product-card:hover .product-card-vis img { transform: scale(1.05); }
.product-card-vis::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--navy), transparent);
  opacity: 0;
  transition: opacity var(--t);
}
.product-card:hover .product-card-vis::after { opacity: 0.3; }
.product-card-body {
  padding: 28px 28px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-tag {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 10px;
  opacity: 0.6;
}
.product-card-body h3 { margin-bottom: 10px; }
.product-card-body p  { font-size: 0.9rem; flex: 1; margin-bottom: 24px; }
.product-link {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--t);
}
.product-link::after { content: '→'; }
.product-card:hover .product-link { gap: 12px; }

/* ── Sector grid ── */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.sector-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--t), background var(--t), transform var(--t);
}
.sector-item:hover {
  border-color: var(--navy);
  background: #f0f4ff;
  transform: translateX(4px);
}
.sector-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--navy);
  flex-shrink: 0;
}

/* ── Dark section variants (carry navy theme through the page) ── */
.section-dark .section-label { color: #7AA7FF; }
.section-dark .section-header h2 { color: #fff; }
.section-dark .section-header p  { color: rgba(255,255,255,.62); }
.section-dark .sector-item {
  background: rgba(255,255,255,.045);
  border-color: rgba(255,255,255,.1);
  color: #fff;
}
.section-dark .sector-item:hover {
  background: rgba(37,99,235,.16);
  border-color: rgba(122,167,255,.5);
  transform: translateX(4px);
}
.section-dark .sector-dot { background: #7AA7FF; }
.section-dark .value-card { background: rgba(255,255,255,.04); }
.section-dark .value-card:hover { background: rgba(255,255,255,.07); }
.section-dark .value-card h3 { color: #fff; }
.section-dark .value-card p  { color: rgba(255,255,255,.6); }
.section-dark .value-num { color: #7AA7FF; opacity: .22; }
.section-dark .value-grid { background: rgba(255,255,255,.08); }

/* Texture for dark sections */
.section-dark {
  position: relative;
  overflow: hidden;
}
.section-dark > .container { position: relative; z-index: 1; }
.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 85% 15%, rgba(37,99,235,.16), transparent 70%),
    radial-gradient(ellipse 40% 50% at 0% 100%, rgba(37,99,235,.10), transparent 70%);
  pointer-events: none;
}

/* ── CTA banner ── */
.cta-strip {
  background: var(--navy);
  border-radius: 16px;
  padding: 72px 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}
.cta-strip h2 { color: #fff; }
.cta-strip p  { color: rgba(255,255,255,.6); margin-top: 12px; max-width: 480px; }

/* ── Products page blocks ── */
.pblock {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}
.pblock:last-of-type { border-bottom: none; }
.pblock.flip .pblock-vis { order: 2; }
.pblock.flip .pblock-text { order: 1; }
.pblock-vis {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background: #0a0e1a;
  border: 1px solid rgba(15,61,145,.25);
  overflow: hidden;
  position: relative;
}
.pblock-vis img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pblock-vis::before {
  content: attr(data-label);
  position: absolute;
  bottom: 16px; left: 16px;
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 100px;
}
.pblock-tag {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  background: #e8effc;
  border-radius: 100px;
  padding: 5px 14px;
  margin-bottom: 18px;
}
.pblock-text h2 { margin-bottom: 8px; }
.pblock-sub {
  color: var(--gray);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.pblock-text p { margin-bottom: 22px; }
.customer-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.chip {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px 13px;
  font-size: 0.78rem;
  color: var(--gray);
  font-family: var(--font-head);
  font-weight: 500;
}

/* ── Product detail pages ── */
.hero-product {
  background: var(--dark);
  padding: 88px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-product::before {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 50%;
  background: radial-gradient(ellipse at right center, rgba(37,99,235,.12), transparent 70%);
  pointer-events: none;
}
.hero-product .container { position: relative; z-index: 1; }
.hero-product .hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.7);
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero-product h1 { color: #fff; margin-bottom: 20px; }
.hero-product .hero-sub {
  color: rgba(255,255,255,.55);
  max-width: 600px;
  font-size: 1.05rem;
  line-height: 1.75;
}

/* Product intro split */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.detail-visual {
  aspect-ratio: 4 / 5;
  background: #0a0e1a;
  border: 1px solid rgba(15,61,145,.25);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.detail-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.detail-visual-label {
  position: absolute;
  bottom: 16px; left: 16px;
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 100px;
}

/* Features */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.feat-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--white);
  transition: border-color var(--t), transform var(--t);
}
.feat-item:hover { border-color: rgba(15,61,145,.25); transform: translateY(-2px); }
.feat-check {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--navy);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  margin-top: 1px;
}
.feat-check svg { width: 12px; height: 12px; }
.feat-item p { font-size: 0.9rem; color: var(--dark); margin: 0; }

/* Use cases */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.usecase-item {
  padding: 22px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--light-bg);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
  text-align: center;
  transition: background var(--t), border-color var(--t);
}
.usecase-item:hover { background: var(--white); border-color: rgba(15,61,145,.2); }

/* ── Model lineup ── */
.models-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.models-grid.cols-2 { grid-template-columns: repeat(2, 1fr); max-width: 740px; margin-left: auto; margin-right: auto; }
.model-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.model-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(15,61,145,.12); border-color: rgba(15,61,145,.2); }
.model-card-vis { aspect-ratio: 1 / 1; background: #0a0e1a; overflow: hidden; }
.model-card-vis img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.model-card:hover .model-card-vis img { transform: scale(1.05); }
.model-card-body { padding: 20px 22px 24px; flex: 1; }
.model-card-tag {
  font-family: var(--font-head); font-size: .64rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--navy); opacity: .6; margin-bottom: 7px;
  display: flex; align-items: center; gap: 8px;
}
.model-badge {
  font-size: .58rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: #fff; background: var(--blue); padding: 2px 8px; border-radius: 100px; opacity: 1;
}
.model-card-body h3 { font-size: 1.05rem; margin-bottom: 6px; }
.model-card-body p { font-size: .86rem; }

/* dark-section variant for model cards */
.section-dark .model-card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1); }
.section-dark .model-card:hover { background: rgba(255,255,255,.08); border-color: rgba(122,167,255,.4); }
.section-dark .model-card-vis { border-bottom: 1px solid rgba(255,255,255,.08); }
.section-dark .model-card-tag { color: #7AA7FF; opacity: 1; }
.section-dark .model-card-body h3 { color: #fff; }
.section-dark .model-card-body p { color: rgba(255,255,255,.6); }

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-family: var(--font-head); font-size: .8rem; font-weight: 500;
  color: rgba(255,255,255,.55); margin-bottom: 22px;
}
.breadcrumb a { color: rgba(255,255,255,.7); transition: color var(--t); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb > span { opacity: .4; }
.breadcrumb span[aria-current] { color: rgba(255,255,255,.9); opacity: 1; }

/* ── Catalog grid (categories + products page) ── */
.catalog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.catalog-grid.cols-1 { grid-template-columns: minmax(0, 380px); justify-content: center; }
.catalog-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 360px)); justify-content: center; }
.catalog-cat-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 40px; }
.catalog-cat-head > div { max-width: 680px; }
.catalog-cat-head h2 { margin-bottom: 12px; }
.catalog-cat-head .btn { flex-shrink: 0; }
.catalog-card {
  display: flex; flex-direction: column;
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: #fff;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.catalog-card:hover { transform: translateY(-5px); box-shadow: 0 22px 50px rgba(15,61,145,.13); border-color: rgba(15,61,145,.2); }
.catalog-card-vis { aspect-ratio: 1 / 1; background: #0a0e1a; overflow: hidden; }
.catalog-card-vis img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.catalog-card:hover .catalog-card-vis img { transform: scale(1.05); }
.catalog-card-body { padding: 24px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.catalog-card-cat { font-family: var(--font-head); font-size: .66rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--navy); opacity: .55; margin-bottom: 8px; }
.catalog-card-body h3 { font-size: 1.3rem; margin-bottom: 4px; }
.catalog-card-sub { font-family: var(--font-head); font-weight: 600; font-size: .92rem; color: var(--gray); margin-bottom: 12px; }
.catalog-card-desc { font-size: .9rem; flex: 1; margin-bottom: 18px; color: var(--gray); }
.catalog-card-link { font-family: var(--font-head); font-weight: 700; font-size: .88rem; color: var(--navy); display: inline-flex; align-items: center; gap: 6px; }
.catalog-card-link::after { content: '→'; transition: transform var(--t); }
.catalog-card:hover .catalog-card-link::after { transform: translateX(4px); }
/* robot product cards — white bg + contain so full robot shows */
.catalog-card--robot .catalog-card-vis { background: #f5f7fc; }
.catalog-card--robot .catalog-card-vis img { object-fit: contain; padding: 12px; }
.catalog-card--robot:hover .catalog-card-vis img { transform: scale(1.03); }
.section-dark .catalog-card--robot .catalog-card-vis { background: #1a2035; }
/* dark variant */
.section-dark .catalog-card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1); }
.section-dark .catalog-card:hover { background: rgba(255,255,255,.08); border-color: rgba(122,167,255,.4); }
.section-dark .catalog-card-vis { border-bottom: 1px solid rgba(255,255,255,.08); }
.section-dark .catalog-card-cat { color: #7AA7FF; opacity: 1; }
.section-dark .catalog-card h3 { color: #fff; }
.section-dark .catalog-card-sub { color: rgba(255,255,255,.55); }
.section-dark .catalog-card-desc { color: rgba(255,255,255,.6); }
.section-dark .catalog-card-link { color: #7AA7FF; }

/* ── Product detail: gallery + intro ── */
.product-top { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.gallery-main { aspect-ratio: 4 / 5; background: #0a0e1a; border: 1px solid rgba(15,61,145,.2); border-radius: var(--radius); overflow: hidden; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 12px; }
.gallery-thumb { aspect-ratio: 1 / 1; background: #0a0e1a; border: 2px solid var(--border); border-radius: 10px; overflow: hidden; cursor: pointer; padding: 0; transition: border-color var(--t); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb:hover { border-color: rgba(15,61,145,.5); }
.gallery-thumb.is-active { border-color: var(--navy); }
.gallery-thumb:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.gallery--robot .gallery-main { background: #f5f7fc; }
.gallery--robot .gallery-main img { object-fit: contain; padding: 28px; }
.gallery--robot .gallery-thumb { background: #f5f7fc; }
.gallery--robot .gallery-thumb img { object-fit: contain; padding: 8px; }
.product-intro h2 { margin-bottom: 18px; }
.product-intro p { margin-bottom: 16px; }
.product-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* ── Hover-fade image stacks ── */
.fade-imgs { position: relative; }
.fade-imgs img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .8s ease; }
.fade-imgs img.is-active { opacity: 1; }
.catalog-card:hover .catalog-card-vis.fade-imgs img { transform: none; }

/* model line on product cards */
.catalog-card-model { font-family: var(--font-head); font-weight: 600; font-size: .82rem; color: var(--gray); margin-bottom: 12px; }
.section-dark .catalog-card-model { color: rgba(255,255,255,.5); }
.hero-model { display: inline-block; font-family: var(--font-head); font-weight: 600; font-size: .9rem; color: rgba(255,255,255,.55); margin: -6px 0 16px; }

/* ── Big category cards (products.html) ── */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cat-card { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; transition: transform var(--t), box-shadow var(--t), border-color var(--t); }
.cat-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px rgba(15,61,145,.16); border-color: rgba(15,61,145,.25); }
.cat-card-vis { aspect-ratio: 4 / 3; background: #0a0e1a; overflow: hidden; }
.cat-card-body { padding: 30px 30px 34px; flex: 1; display: flex; flex-direction: column; }
.cat-card-body h3 { font-size: 1.6rem; margin-bottom: 12px; }
.cat-card-body p { font-size: .95rem; flex: 1; margin-bottom: 22px; color: var(--gray); }
.cat-card-link { font-family: var(--font-head); font-weight: 700; font-size: .92rem; color: var(--navy); display: inline-flex; align-items: center; gap: 6px; }
.cat-card-link::after { content: '→'; transition: transform var(--t); }
.cat-card:hover .cat-card-link::after { transform: translateX(5px); }
.cat-card--robot .cat-card-vis { background: #f5f7fc; }
.cat-card--robot .cat-card-vis img { width: 100%; height: 100%; object-fit: contain; padding: 32px; }

/* ── How it works ── */
.steps-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 80px;
  align-items: start;
}
.step-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.step-item:last-child { border-bottom: none; }
.step-n {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.6rem;
  color: var(--navy);
  opacity: 0.12;
  line-height: 1;
  padding-top: 4px;
}
.step-content h3 { font-size: 1.15rem; margin-bottom: 10px; }
.step-content p  { font-size: 0.93rem; }

.pricing-box {
  position: sticky;
  top: 88px;
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.pricing-box h3 { margin-bottom: 20px; font-size: 1.05rem; }
.pricing-rows { display: flex; flex-direction: column; gap: 0; }
.pricing-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--dark);
}
.pricing-row:last-child { border-bottom: none; }
.pricing-row::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--navy);
  flex-shrink: 0;
}
.disclaimer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--subtle);
  font-style: italic;
}

/* ── About ── */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 88px;
  align-items: start;
}
.mission-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 44px 40px;
}
.mission-card .label {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 18px;
}
.mission-card p { color: rgba(255,255,255,.78); font-size: 1.08rem; line-height: 1.75; }

.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.approach-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: border-color var(--t), transform var(--t);
}
.approach-item:hover { border-color: rgba(15,61,145,.25); transform: translateY(-3px); }
.approach-n {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--navy);
  opacity: 0.18;
  line-height: 1;
  flex-shrink: 0;
}
.approach-item h3 { font-size: 0.95rem; margin-bottom: 6px; }
.approach-item p  { font-size: 0.85rem; }

/* ── Contact ── */
.contact-layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 48px;
  align-items: start;
}
.contact-sidebar {
  background: var(--dark);
  border-radius: 16px;
  padding: 46px 38px;
  position: relative;
  overflow: hidden;
}
.contact-sidebar::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 55% at 100% 0%, rgba(37,99,235,.24), transparent 70%);
  pointer-events: none;
}
.contact-sidebar > * { position: relative; z-index: 1; }
.contact-sidebar .section-label { color: #7AA7FF; }
.contact-sidebar h1 { color: #fff; margin-bottom: 14px; }
.contact-intro { color: rgba(255,255,255,.62); margin-bottom: 30px; }

.contact-methods { display: flex; flex-direction: column; gap: 12px; margin-bottom: 22px; }
.contact-method {
  display: flex; align-items: center; gap: 14px;
  padding: 15px 16px; border-radius: 12px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  transition: background var(--t), border-color var(--t), transform var(--t);
}
.contact-method:hover { background: rgba(37,99,235,.16); border-color: rgba(122,167,255,.5); transform: translateY(-2px); }
.cm-icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(122,167,255,.15); color: #7AA7FF; display: grid; place-items: center; flex-shrink: 0; }
.cm-icon svg { width: 20px; height: 20px; }
.cm-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.cm-label { font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; color: rgba(255,255,255,.5); font-family: var(--font-head); font-weight: 700; }
.cm-value { font-family: var(--font-head); font-weight: 700; color: #fff; font-size: 1.02rem; }

.contact-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-head); font-weight: 600; font-size: .82rem;
  color: #fff; background: rgba(37,99,235,.16); border: 1px solid rgba(122,167,255,.32);
  padding: 10px 16px; border-radius: 100px; margin-bottom: 30px;
}
.badge-dot { width: 9px; height: 9px; border-radius: 50%; background: #46d39a; box-shadow: 0 0 0 4px rgba(70,211,154,.18); flex-shrink: 0; }

.contact-person-mini { display: flex; flex-direction: column; gap: 2px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); }
.cpm-name { font-family: var(--font-head); font-weight: 700; color: #fff; }
.cpm-title { font-size: .85rem; color: rgba(255,255,255,.5); }

/* Reassurance list (dark sidebar) */
.contact-reassure { display: flex; flex-direction: column; gap: 13px; margin-bottom: 28px; }
.contact-reassure li { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.82); font-size: .95rem; }
.cr-check {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(70,211,154,.16); color: #46d39a;
  display: grid; place-items: center;
  font-size: .68rem; font-weight: 700; flex-shrink: 0;
}

/* Direct contact panel (no form) */
.contact-direct {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 44px;
}
.cd-eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .7rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 14px;
}
.contact-direct h2 { margin-bottom: 14px; }
.contact-direct > p { margin-bottom: 32px; font-size: 1.05rem; max-width: 540px; }
.contact-actions { display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; max-width: 440px; }
.contact-big-btn { justify-content: flex-start; gap: 12px; padding: 16px 22px; font-size: 1.02rem; }
.contact-big-btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.contact-guide { border-top: 1px solid var(--border); padding-top: 28px; }
.contact-guide h3 { font-size: .85rem; margin-bottom: 14px; color: var(--dark); }
.contact-guide ul { display: flex; flex-direction: column; gap: 11px; }
.contact-guide li { position: relative; padding-left: 22px; font-size: .92rem; color: var(--gray); line-height: 1.5; }
.contact-guide li::before { content: ''; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--navy); }

.process-mini { display: flex; flex-direction: column; gap: 0; }
.process-mini-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--gray);
}
.process-mini-item:last-child { border-bottom: none; }
.process-mini-item::before {
  content: '→';
  color: var(--navy);
  font-weight: 700;
  font-family: var(--font-head);
  flex-shrink: 0;
}

.contact-form-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 40px;
}
.form-notice {
  background: #FFF8E7;
  border: 1px solid #F0D070;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 0.875rem;
  color: #7C5A00;
  margin-bottom: 32px;
  line-height: 1.6;
}
.form-notice a { color: var(--navy); font-weight: 600; text-decoration: underline; }
.form-notice strong { color: #5c4000; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.form-group.span2 { grid-column: 1 / -1; }
.form-group label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.83rem;
  color: var(--dark);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 15px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--dark);
  background: var(--white);
  width: 100%;
  transition: border-color var(--t), box-shadow var(--t);
  -webkit-appearance: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #C4C9D4; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(15,61,145,.1);
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-submit-btn {
  width: 100%;
  justify-content: center;
  padding: 15px 30px;
  font-size: 0.95rem;
}

/* ── Footer ── */
.site-footer {
  background: var(--dark);
  padding: 72px 0 40px;
  margin-top: 120px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo-ao { color: #fff; }
.footer-brand .logo-robotics { color: rgba(255,255,255,.4); }
.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,.35);
  margin-top: 10px;
}
.footer-brand-email {
  margin-top: 14px;
}
.footer-brand-email a {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,.5);
  transition: color var(--t);
}
.footer-brand-email a:hover { color: #fff; }
.footer-brand-phone { margin-top: 6px; }
.footer-brand-phone a {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(255,255,255,.7);
  transition: color var(--t);
}
.footer-brand-phone a:hover { color: #fff; }
.footer-support {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,.55);
}
.support-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #46d39a;
  box-shadow: 0 0 0 3px rgba(70,211,154,.18);
  flex-shrink: 0;
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,.5);
  transition: color var(--t);
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  padding-top: 28px;
  font-size: 0.8rem;
  color: rgba(255,255,255,.25);
  text-align: center;
}

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fuAnim .65s ease forwards;
}
.fade-up-1 { animation-delay: .04s; }
.fade-up-2 { animation-delay: .14s; }
.fade-up-3 { animation-delay: .26s; }
.fade-up-4 { animation-delay: .38s; }
.fade-up-5 { animation-delay: .50s; }
@keyframes fuAnim { to { opacity: 1; transform: none; } }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-layout { grid-template-columns: 1fr; gap: 56px; }
  .hero-right { display: grid; grid-template-columns: repeat(3, 1fr); }
  .pblock { grid-template-columns: 1fr; gap: 40px; }
  .pblock.flip .pblock-vis { order: 0; }
  .pblock.flip .pblock-text { order: 0; }
  .about-split { grid-template-columns: 1fr; gap: 48px; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .steps-layout { grid-template-columns: 1fr; gap: 48px; }
  .pricing-box { position: static; }
}

@media (max-width: 768px) {
  .main-nav, .header-cta { display: none; }
  .menu-toggle { display: flex; }

  .nav-drawer.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 14px 24px 22px;
    box-shadow: 0 14px 34px rgba(0,0,0,.1);
    z-index: 99;
  }
  .nav-drawer.open .main-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  .nav-drawer.open .main-nav a { padding: 12px; font-size: 1.02rem; border-radius: 8px; }
  .nav-drawer.open .header-cta { display: block; margin-top: 12px; }
  .nav-drawer.open .header-cta .btn { width: 100%; justify-content: center; padding: 14px; }

  .site-header { position: relative; }
  .site-header.menu-active { position: sticky; }

  .hero { min-height: auto; }
  .hero-layout { padding: 72px 0 64px; }
  .hero-right { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .sector-grid { grid-template-columns: 1fr 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .usecase-grid { grid-template-columns: 1fr 1fr; }
  .models-grid, .models-grid.cols-2 { grid-template-columns: 1fr; }
  .catalog-grid, .catalog-grid.cols-1, .catalog-grid.cols-2 { grid-template-columns: 1fr; justify-content: stretch; }
  .cat-grid { grid-template-columns: 1fr; }
  .product-top { grid-template-columns: 1fr; gap: 36px; }
  .catalog-cat-head { flex-direction: column; align-items: flex-start; gap: 20px; }
  .approach-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-strip { grid-template-columns: 1fr; padding: 48px 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .detail-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { display: grid; grid-template-columns: 1fr; }
  .contact-form-box { padding: 28px 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .sector-grid { grid-template-columns: 1fr; }
  .usecase-grid { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
}