:root {
  --bg: #f5f7fb;
  --white: #ffffff;
  --dark: #0b1220;
  --text: #111827;
  --muted: #64748b;
  --line: #e5e7eb;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --green: #16a34a;
  --amber: #f59e0b;
  --soft-blue: #eef4ff;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.10);
  --shadow-soft: 0 14px 40px rgba(15, 23, 42, 0.07);
  --radius: 28px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

button, input, textarea, select {
  font: inherit;
}

.container {
  width: min(1560px, 94%);
  margin: auto;
}

.topbar {
  background: var(--dark);
  color: #cbd5e1;
  font-size: 13px;
  padding: 10px 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.topbar strong {
  color: white;
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.navbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 950;
  font-size: 24px;
  letter-spacing: -0.8px;
  color: var(--dark);
  flex-shrink: 0;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--dark), var(--blue));
  color: white;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.25);
  position: relative;
  overflow: hidden;
}

.logo-mark::before {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid white;
  border-radius: 7px;
}

.logo-mark::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
}

.logo span,
footer strong span {
  color: var(--blue);
}

nav {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: center;
}

nav a {
  color: #475569;
  font-weight: 750;
  font-size: 14.5px;
  transition: 0.2s;
  white-space: nowrap;
}

nav a:hover {
  color: var(--blue);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 23px;
  border-radius: 999px;
  background: var(--dark);
  color: white;
  font-weight: 850;
  font-size: 15px;
  border: 1px solid var(--dark);
  transition: 0.25s ease;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.18);
  white-space: nowrap;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 18px 45px rgba(37, 99, 235, 0.28);
}

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 1px solid #cbd5e1;
  box-shadow: none;
}

.btn-outline:hover {
  color: white;
  background: var(--dark);
  border-color: var(--dark);
}

.btn-light {
  background: white;
  color: var(--dark);
  border-color: white;
}

.hero {
  position: relative;
  padding: 86px 0 70px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 18%, rgba(37, 99, 235, 0.12), transparent 30%),
    radial-gradient(circle at 90% 8%, rgba(8, 145, 178, 0.12), transparent 28%),
    linear-gradient(to bottom, transparent, rgba(255,255,255,0.35));
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 68px;
  align-items: center;
}

.label {
  width: fit-content;
  padding: 9px 15px;
  border-radius: 999px;
  background: var(--soft-blue);
  color: var(--blue);
  font-size: 14px;
  font-weight: 850;
  margin-bottom: 22px;
  border: 1px solid #dbeafe;
}

.hero h1 {
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: -3px;
  color: var(--dark);
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--blue);
}

.hero p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
  max-width: 650px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.trust-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.trust-pill {
  background: white;
  border: 1px solid var(--line);
  color: #475569;
  padding: 11px 15px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}

.hero-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 36px;
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.device-head {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 850;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
}

.dot {
  width: 9px;
  height: 9px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.12);
}

.robot-stage {
  position: relative;
  height: 410px;
  border-radius: 26px;
  background: linear-gradient(145deg, #0b1220, #172033);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.robot-stage::before {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  background: rgba(37, 99, 235, 0.34);
  border-radius: 50%;
  filter: blur(70px);
}

.robot-stage::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 22px;
}

.robot-visual {
  position: relative;
  z-index: 3;
  width: 210px;
  height: 250px;
  display: grid;
  place-items: center;
}

.robot-head {
  width: 128px;
  height: 92px;
  border-radius: 28px;
  background: linear-gradient(145deg, #ffffff, #dbeafe);
  border: 5px solid #e2e8f0;
  position: relative;
  box-shadow: 0 24px 55px rgba(0,0,0,0.32);
}

.robot-head::before,
.robot-head::after {
  content: "";
  position: absolute;
  top: 35px;
  width: 14px;
  height: 14px;
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(37, 99, 235, 0.65);
}

.robot-head::before {
  left: 32px;
}

.robot-head::after {
  right: 32px;
}

.robot-mouth {
  position: absolute;
  width: 46px;
  height: 8px;
  border-radius: 999px;
  background: #94a3b8;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
}

.robot-body {
  position: absolute;
  top: 130px;
  width: 155px;
  height: 94px;
  border-radius: 28px;
  background: linear-gradient(145deg, #ffffff, #e5e7eb);
  border: 5px solid #e2e8f0;
  box-shadow: 0 20px 45px rgba(0,0,0,0.25);
}

.robot-body::before {
  content: "ZX";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  font-weight: 950;
  color: var(--blue);
  letter-spacing: -1px;
  font-size: 30px;
}

.robot-antenna {
  position: absolute;
  top: -30px;
  left: 50%;
  width: 4px;
  height: 34px;
  background: #cbd5e1;
  transform: translateX(-50%);
}

.robot-antenna::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 0 22px rgba(37, 99, 235, 0.9);
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.mini-stat {
  padding: 18px;
  border-radius: 18px;
  background: #f8fafc;
  border: 1px solid var(--line);
}

.mini-stat h3 {
  color: var(--dark);
  font-size: 24px;
  margin-bottom: 3px;
}

.mini-stat p {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

section {
  padding: 84px 0;
  scroll-margin-top: 95px;
}

.section-title {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px;
}

.section-title .label {
  margin: 0 auto 18px;
}

.section-title h2 {
  font-size: clamp(32px, 4vw, 52px);
  color: var(--dark);
  letter-spacing: -1.7px;
  margin-bottom: 16px;
}

.section-title p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 17px;
}

.logo-strip {
  padding: 38px 0;
  background: linear-gradient(135deg, #0b1220 0%, #172033 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.logo-strip::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 50%;
  height: 200%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.logo-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.strip-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  padding: 18px 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: #e2e8f0;
  font-weight: 850;
  font-size: 14.5px;
  letter-spacing: -0.2px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.03), 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}

.strip-item:hover {
  background: linear-gradient(135deg, var(--blue), #1d4ed8);
  border-color: var(--blue);
  color: white;
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.strip-icon {
  color: var(--blue);
  transition: color 0.3s ease;
  flex-shrink: 0;
}

.strip-item:hover .strip-icon {
  color: white;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 32px;
  align-items: stretch;
}

.about-panel {
  background: var(--dark);
  color: white;
  border-radius: 34px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.about-panel h3 {
  font-size: 34px;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.about-panel p {
  color: #cbd5e1;
  line-height: 1.8;
  font-size: 16px;
}

.about-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.about-list div {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 14px 16px;
  border-radius: 16px;
  color: #e5e7eb;
  font-weight: 750;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-soft);
  transition: 0.25s ease;
}

.card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow);
  border-color: #bfdbfe;
}

.icon-box {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--soft-blue);
  display: grid;
  place-items: center;
  font-size: 17px;
  margin-bottom: 22px;
  color: var(--blue);
  font-weight: 950;
}

.card h3 {
  font-size: 21px;
  color: var(--dark);
  margin-bottom: 11px;
  letter-spacing: -0.4px;
}

.card p {
  color: var(--muted);
  line-height: 1.65;
  font-size: 15px;
}

.products {
  background: white;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.product-tools {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  margin-bottom: 28px;
}

.search-box {
  width: 100%;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid #cbd5e1;
  outline: none;
  background: #f8fafc;
  color: var(--dark);
  font-weight: 650;
}

.search-box:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}

.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.filter-btn {
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid #cbd5e1;
  background: white;
  color: #475569;
  font-weight: 850;
  cursor: pointer;
  transition: 0.2s;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--dark);
  color: white;
  border-color: var(--dark);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  border-radius: 30px;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: 0.25s ease;
  display: block;
}

.product-card.hide {
  display: none;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.product-img {
  height: 240px;
  background:
    radial-gradient(circle at center, rgba(37, 99, 235, 0.16), transparent 34%),
    linear-gradient(145deg, #f8fafc, #eaf0f8);
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.product-img::before {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 36px;
  background: white;
  border: 1px solid #dbeafe;
  box-shadow: 0 22px 40px rgba(15, 23, 42, 0.08);
  transform: rotate(8deg);
}

.product-img::after {
  content: attr(data-icon);
  position: relative;
  z-index: 2;
  font-size: 18px;
  font-weight: 950;
  color: var(--blue);
  background: white;
  border: 1px solid #bfdbfe;
  padding: 16px 18px;
  border-radius: 18px;
  box-shadow: 0 16px 35px rgba(37, 99, 235, 0.14);
  text-align: center;
  min-width: 120px;
}

.product-body {
  padding: 26px;
}

.badge {
  display: inline-flex;
  padding: 7px 13px;
  border-radius: 999px;
  background: var(--soft-blue);
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  margin-bottom: 15px;
}

.product-body h3 {
  color: var(--dark);
  font-size: 22px;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.product-body p {
  color: var(--muted);
  line-height: 1.62;
  font-size: 15px;
  margin-bottom: 20px;
}

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.features span {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 12px;
  color: #475569;
  font-weight: 750;
}

.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}

.price {
  font-size: 24px;
  font-weight: 950;
  color: var(--dark);
}

.buy-btn {
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--blue);
  color: white;
  font-weight: 850;
  font-size: 14px;
  transition: 0.2s;
  white-space: nowrap;
}

.buy-btn:hover {
  background: var(--blue-dark);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--dark);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 900;
  margin-bottom: 18px;
}

.demo-section {
  background: var(--dark);
  color: white;
  position: relative;
  overflow: hidden;
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.demo-section h2 {
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -1.7px;
  margin-bottom: 18px;
}

.demo-section p {
  color: #cbd5e1;
  line-height: 1.8;
  font-size: 17px;
  margin-bottom: 28px;
}

.video-box {
  min-height: 330px;
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(255,255,255,0.16), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.14);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.25);
}

.play {
  width: 86px;
  height: 86px;
  border-radius: 50%;
  background: white;
  color: var(--blue);
  display: grid;
  place-items: center;
  font-size: 34px;
  font-weight: 950;
  box-shadow: 0 18px 50px rgba(0,0,0,0.25);
}

.video-caption {
  position: absolute;
  bottom: 18px;
  left: 18px;
  right: 18px;
  background: rgba(15, 23, 42, 0.82);
  border: 1px solid rgba(255,255,255,0.12);
  color: #e5e7eb;
  border-radius: 18px;
  padding: 15px;
  font-weight: 800;
}

.testimonial-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 30px;
  box-shadow: var(--shadow-soft);
}

.stars {
  color: var(--amber);
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-card p {
  color: #475569;
  line-height: 1.75;
  margin-bottom: 22px;
}

.person {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--soft-blue);
  color: var(--blue);
  display: grid;
  place-items: center;
  font-weight: 950;
}

.person strong {
  display: block;
  color: var(--dark);
}

.person span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.policy {
  background: white;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.policy strong {
  display: block;
  color: var(--dark);
  font-size: 18px;
  margin-bottom: 8px;
}

.policy p {
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}

.faq {
  background: white;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.faq-list {
  max-width: 880px;
  margin: auto;
  display: grid;
  gap: 14px;
}

details {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px 22px;
}

summary {
  cursor: pointer;
  font-weight: 900;
  color: var(--dark);
  font-size: 17px;
}

details p {
  color: var(--muted);
  line-height: 1.7;
  margin-top: 14px;
}

.cta {
  margin: 82px auto;
  width: min(1560px, 94%);
  background: linear-gradient(135deg, #0b1220, #172033);
  color: white;
  border-radius: 38px;
  padding: 76px 34px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 35px 90px rgba(15, 23, 42, 0.25);
}

.cta h2 {
  font-size: clamp(32px, 4vw, 54px);
  letter-spacing: -1.5px;
  margin-bottom: 18px;
}

.cta p {
  color: #cbd5e1;
  font-size: 18px;
  line-height: 1.75;
  max-width: 700px;
  margin: 0 auto 30px;
}

.contact-section {
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 30px;
  align-items: stretch;
}

.contact-card {
  background: var(--dark);
  color: white;
  border-radius: 34px;
  padding: 40px;
  box-shadow: var(--shadow);
}

.contact-card h2 {
  font-size: 40px;
  letter-spacing: -1.4px;
  margin-bottom: 16px;
}

.contact-card p {
  color: #cbd5e1;
  line-height: 1.75;
  margin-bottom: 28px;
}

.contact-info {
  display: grid;
  gap: 15px;
}

.contact-info div {
  padding: 15px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #e5e7eb;
  font-weight: 750;
}

.contact-form {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 34px;
  padding: 34px;
}

.contact-form h3 {
  font-size: 28px;
  letter-spacing: -0.8px;
  color: var(--dark);
  margin-bottom: 22px;
}

.form-row {
  display: grid;
  gap: 14px;
  margin-bottom: 15px;
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 15px 16px;
  border-radius: 16px;
  border: 1px solid #cbd5e1;
  background: white;
  outline: none;
  font-size: 15px;
  color: var(--dark);
}

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

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}

.form-note {
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
  margin-top: 14px;
}

.form-alert {
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  background: #eef4ff;
  color: var(--blue);
  border: 1px solid #bfdbfe;
  font-weight: 800;
}

footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 52px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
  gap: 32px;
  margin-bottom: 30px;
}

footer strong {
  color: white;
  font-size: 20px;
  display: block;
  margin-bottom: 12px;
}

footer p,
footer a {
  color: #cbd5e1;
  line-height: 1.8;
  font-size: 14px;
}

footer a:hover {
  color: white;
}

.footer-links {
  display: grid;
  gap: 9px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  padding-top: 20px;
  color: #94a3b8;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.floating-whatsapp {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1100;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #22c55e;
  color: white;
  display: grid;
  place-items: center;
  font-weight: 950;
  font-size: 18px;
  box-shadow: 0 18px 45px rgba(34, 197, 94, 0.35);
  border: 3px solid white;
}

.floating-whatsapp:hover {
  transform: translateY(-3px);
}

body.no-scroll {
  overflow: hidden;
}

/* Hamburger Menu Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1050;
  position: relative;
  outline: none;
}

.menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--dark);
  border-radius: 4px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: left center;
}

/* Hamburger Active / Open State */
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(2px, -1px);
  background-color: var(--blue);
}

.menu-toggle.active span:nth-child(2) {
  width: 0%;
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(2px, 1px);
  background-color: var(--blue);
}

/* Mobile Nav Styles */
.mobile-shop-btn {
  display: none;
}

@media (max-width: 1120px) {
  nav {
    gap: 16px;
  }

  nav a {
    font-size: 13.5px;
  }

  .desktop-shop-btn {
    display: none;
  }
}

@media (max-width: 970px) {
  .menu-toggle {
    display: flex;
  }

  .navbar {
    padding: 18px 0;
    position: relative;
    flex-direction: row !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100%;
  }

  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85%);
    height: 100vh;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 100px 24px 40px;
    gap: 14px;
    box-shadow: -10px 0 45px rgba(15, 23, 42, 0.15);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1005;
    overflow-y: auto;
  }

  nav.active {
    right: 0;
  }

  nav a {
    font-size: 17px;
    font-weight: 800;
    color: var(--dark);
    padding: 12px 16px;
    border-radius: 14px;
    border-bottom: 1px solid var(--line);
    transition: all 0.2s ease;
    text-align: left;
  }

  nav a:hover {
    background: var(--soft-blue);
    color: var(--blue);
    padding-left: 22px;
  }

  .mobile-shop-btn {
    display: inline-flex !important;
    margin-top: 15px;
    text-align: center;
    justify-content: center;
    padding: 14px 24px;
    border-radius: 999px;
    background: var(--blue);
    color: white;
    font-weight: 850;
    font-size: 16px;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
    border: none;
    transition: all 0.25s ease;
  }

  .mobile-shop-btn:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
  }

  .desktop-shop-btn {
    display: none !important;
  }

  .hero-grid,
  .about-grid,
  .demo-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .grid-4,
  .product-grid,
  .process-grid,
  .policy-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .logo-strip-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-tools {
    grid-template-columns: 1fr;
  }

  .filters {
    justify-content: flex-start;
  }
}

@media (max-width: 650px) {
  .topbar-inner {
    font-size: 12px;
  }

  .hero {
    padding: 62px 0;
  }

  .hero h1 {
    letter-spacing: -1.5px;
  }

  .grid-4,
  .grid-3,
  .about-cards,
  .product-grid,
  .process-grid,
  .policy-grid,
  .mini-stats,
  .footer-grid,
  .logo-strip-grid {
    grid-template-columns: 1fr;
  }

  .robot-stage {
    height: 310px;
  }

  .robot-visual {
    transform: scale(0.82);
  }

  .cta {
    padding: 54px 24px;
    margin: 54px auto;
  }

  .contact-card,
  .contact-form,
  .about-panel {
    padding: 28px;
  }

  .contact-card h2 {
    font-size: 32px;
  }
}