/* NexionGT — Design system */

:root {
  /* Brand palette — sampled directly from the NexionGT logo gradient */
  --color-ink: #0b1220;
  --color-ink-soft: #17213a;
  --color-primary: #0b6fd6;
  --color-primary-dark: #084f9e;
  --color-accent: #2fd0f6;
  --color-accent-soft: #dcf7fe;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fb;
  --color-border: #e4e8f1;
  --color-text: #10162a;
  --color-text-muted: #566180;
  --color-text-inverse: #f6f8ff;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(16, 22, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(16, 22, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(16, 22, 42, 0.16);

  --container: 1160px;
  --nav-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
  color: var(--color-text-muted);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 18px;
  border-radius: 0 0 8px 0;
  z-index: 1000;
}
.skip-link:focus {
  left: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-on-dark {
  background: var(--color-accent);
  color: var(--color-ink);
}
.btn-on-dark:hover {
  background: #16e6c9;
  transform: translateY(-1px);
}
.btn-outline-on-dark {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(246, 248, 255, 0.3);
}
.btn-outline-on-dark:hover {
  border-color: var(--color-text-inverse);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-ink);
}
.brand-mark {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex: none;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
.nav-links a:hover {
  color: var(--color-primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}
.nav-links .mobile-only {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(1100px 500px at 80% -10%, rgba(46, 92, 255, 0.16), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(0, 212, 184, 0.14), transparent 55%),
    var(--color-bg-alt);
  padding: 96px 0 88px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  background: rgba(46, 92, 255, 0.09);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  color: var(--color-ink);
  max-width: 20ch;
}
.hero .lede {
  font-size: 1.125rem;
  max-width: 46ch;
  color: var(--color-text-muted);
}
.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.hero-trust {
  margin-top: 40px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-trust div {
  min-width: 120px;
}
.hero-trust strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-ink);
}
.hero-trust span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
}
.dash-card {
  background: var(--color-ink);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-lg);
  color: var(--color-text-inverse);
}
.dash-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.dash-dots {
  display: flex;
  gap: 6px;
}
.dash-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(246, 248, 255, 0.25);
}
.dash-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.dash-kpi {
  background: rgba(246, 248, 255, 0.06);
  border: 1px solid rgba(246, 248, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.dash-kpi span {
  display: block;
  font-size: 0.72rem;
  color: rgba(246, 248, 255, 0.6);
  margin-bottom: 6px;
}
.dash-kpi strong {
  font-size: 1.15rem;
}
.dash-kpi strong.up::after {
  content: " ▲";
  color: var(--color-accent);
  font-size: 0.7rem;
}
.dash-chart {
  height: 120px;
  border-radius: var(--radius-sm);
  background: rgba(246, 248, 255, 0.04);
  border: 1px solid rgba(246, 248, 255, 0.1);
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 12px;
}
.dash-chart span {
  flex: 1;
  background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
  border-radius: 4px 4px 0 0;
  opacity: 0.9;
}
.float-badge {
  position: absolute;
  right: -18px;
  bottom: -22px;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 700;
}
.float-badge .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* Logos strip */
.logos {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}
.logos p {
  text-align: center;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}
.logos-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  opacity: 0.6;
  font-weight: 700;
  color: var(--color-text-muted);
}

/* Section shell */
.section {
  padding: 96px 0;
}
.section-alt {
  background: var(--color-bg-alt);
}
.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  color: var(--color-ink);
}
.section-head .eyebrow {
  margin-bottom: 14px;
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  background: var(--color-accent-soft);
  color: var(--color-primary-dark);
}
.service-card h3 {
  font-size: 1.15rem;
  color: var(--color-ink);
}
.service-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.service-list li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.service-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  flex: none;
  transform: translateY(-2px);
}

/* Differentiator / flow */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.flow-5 {
  grid-template-columns: repeat(5, 1fr);
}
.flow-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
}
.flow-step .num {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-ink);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.flow-step h3 {
  font-size: 1rem;
  color: var(--color-ink);
}
.flow-step p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--color-ink) 0%, var(--color-ink-soft) 100%);
  color: var(--color-text-inverse);
  border-radius: var(--radius-lg);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 {
  color: #fff;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  margin-bottom: 8px;
}
.cta-band p {
  color: rgba(246, 248, 255, 0.72);
  margin-bottom: 0;
  max-width: 50ch;
}
.loop-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.loop-chips span {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  background: var(--color-accent);
  padding: 7px 14px;
  border-radius: 999px;
}
.loop-chips span:not(:last-child)::after {
  content: "→";
  margin-left: 10px;
  color: rgba(11, 18, 32, 0.45);
  font-weight: 400;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}
.contact-info h2 {
  color: var(--color-ink);
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  gap: 18px;
}
.contact-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.contact-list .ico {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-primary-dark);
  display: grid;
  place-items: center;
  flex: none;
  font-size: 1rem;
}
.contact-list strong {
  display: block;
  color: var(--color-ink);
  font-size: 0.95rem;
}
.contact-list span {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-md);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field {
  margin-bottom: 18px;
}
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--color-bg-alt);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46, 92, 255, 0.15);
  background: #fff;
}
.field textarea {
  resize: vertical;
  min-height: 120px;
}
.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 14px;
}
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
#form-status {
  margin-top: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
  padding: 12px 14px;
  border-radius: 10px;
}
#form-status.ok {
  display: block;
  background: var(--color-accent-soft);
  color: #046a5b;
}
#form-status.err {
  display: block;
  background: #fde8e8;
  color: #9b1c1c;
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: rgba(246, 248, 255, 0.7);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}
.footer-brand .brand {
  color: #fff;
}
.footer-brand p {
  color: rgba(246, 248, 255, 0.55);
  max-width: 34ch;
  margin-top: 14px;
}
.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-col a {
  text-decoration: none;
  font-size: 0.9rem;
  color: rgba(246, 248, 255, 0.65);
}
.footer-col a:hover {
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(246, 248, 255, 0.12);
  font-size: 0.82rem;
  color: rgba(246, 248, 255, 0.45);
}
.footer-legal {
  display: flex;
  gap: 18px;
}
.footer-legal a {
  text-decoration: none;
  color: rgba(246, 248, 255, 0.45);
}
.footer-legal a:hover {
  color: rgba(246, 248, 255, 0.8);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .nav-links,
  .nav-actions .btn-ghost,
  .nav-actions .btn-primary {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-header.nav-open .nav-links {
    display: flex;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--color-border);
    gap: 18px;
    box-shadow: var(--shadow-md);
  }
  .nav-links .mobile-only {
    display: block;
  }
  .nav-links .btn-primary {
    display: inline-flex;
    margin-top: 4px;
  }
  .services-grid,
  .flow {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .cta-band {
    padding: 36px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 64px 0;
  }
}