:root {
  --bg: #0f172a;
  --bg-elevated: #111827;
  --surface: #1e293b;
  --surface-light: #334155;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --blue: #38bdf8;
  --purple: #a855f7;
  --accent-gradient: linear-gradient(135deg, var(--blue) 0%, var(--purple) 100%);
  --success: #22c55e;
  --danger: #ef4444;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1200px;
  --header-height: 72px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(92%, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--blue);
  color: var(--bg);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 1rem;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: 9999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  padding: 0.65rem 1.4rem;
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 14px 35px rgba(168, 85, 247, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--surface-light);
  padding: 0.65rem 1.4rem;
}

.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-lg {
  padding: 0.85rem 1.8rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  height: var(--header-height);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-menu a:not(.btn) {
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
  transition: color 0.2s;
}

.nav-menu a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width 0.2s;
}

.nav-menu a:not(.btn):hover {
  color: var(--text);
}

.nav-menu a:not(.btn):hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.hamburger {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Hero */
.hero {
  padding: 5rem 0 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(168, 85, 247, 0.12) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.75rem;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-lead {
  color: var(--text-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  max-width: 540px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Dashboard mockup */
.dashboard-mockup {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: var(--radius);
  box-shadow: var(--shadow), 0 0 0 1px rgba(56, 189, 248, 0.06) inset;
  overflow: hidden;
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  background: rgba(17, 24, 39, 0.5);
}

.dash-dots {
  display: flex;
  gap: 0.4rem;
}

.dash-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--surface-light);
}

.dash-dots span:nth-child(1) { background: #ef4444; }
.dash-dots span:nth-child(2) { background: #eab308; }
.dash-dots span:nth-child(3) { background: var(--success); }

.dash-title {
  font-weight: 600;
  font-size: 0.9rem;
  flex: 1;
}

.dash-live {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.dashboard-body {
  padding: 1.25rem;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-value {
  display: block;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-delta {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

.stat-delta.positive { color: var(--success); }
.stat-delta.negative { color: var(--danger); }

.chart-wrap {
  position: relative;
  height: 180px;
  border-radius: var(--radius-sm);
  background: rgba(17, 24, 39, 0.4);
  border: 1px solid rgba(148, 163, 184, 0.08);
  overflow: hidden;
}

#heroChart {
  width: 100%;
  height: 100%;
}

/* Services */
.services {
  padding: 5rem 0 6rem;
  background: var(--bg-elevated);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: 0 25px 55px rgba(0, 0, 0, 0.35);
}

.service-icon {
  width: 52px;
  height: 52px;
  color: var(--blue);
  background: rgba(56, 189, 248, 0.1);
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 28px;
  height: 28px;
}

.service-icon.purple {
  color: var(--purple);
  background: rgba(168, 85, 247, 0.1);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 1.25rem;
}

.service-link {
  font-weight: 600;
  color: var(--blue);
  position: relative;
}

.service-link::after {
  content: " →";
  transition: transform 0.2s;
}

.service-link:hover {
  color: var(--purple);
}

/* Contact */
.contact {
  padding: 5rem 0 6rem;
}

.contact-box {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3rem;
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: var(--radius);
  padding: 3rem;
  box-shadow: var(--shadow);
}

.contact-info h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 0.75rem;
}

.contact-info > p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.contact-benefits {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.contact-benefits li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.contact-benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}

.inquiry-form {
  display: grid;
  gap: 1.15rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem;
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.field label span {
  color: var(--blue);
}

.field input,
.field select,
.field textarea {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--surface-light);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.field textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

.form-error {
  display: none;
  font-size: 0.85rem;
  color: #f87171;
  text-align: center;
}

.form-error.visible {
  display: block;
}

.h-captcha {
  display: flex;
  justify-content: flex-start;
}

.h-captcha iframe {
  max-width: 100%;
}

.form-success {
  display: none;
  align-items: center;
  gap: 0.75rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: var(--success);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.form-success.visible {
  display: flex;
}

.form-success svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding: 3.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 0.75rem;
  max-width: 260px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text);
}

.newsletter h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.newsletter p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  flex: 1;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--surface-light);
  border-radius: 9999px;
  padding: 0.65rem 1rem;
  color: var(--text);
  outline: none;
}

.newsletter-form input:focus {
  border-color: var(--blue);
}

.newsletter-form .btn {
  flex-shrink: 0;
}

.footer-bottom {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
  padding-top: 2rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .contact-info {
    text-align: center;
  }

  .contact-benefits {
    justify-content: center;
    justify-items: center;
  }

  .dashboard-mockup {
    max-width: 720px;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.97);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-menu {
    flex-direction: column;
    gap: 1.25rem;
  }

  .hero {
    padding: 3rem 0 4rem;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: 1fr;
  }

  .contact-box {
    padding: 2rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-brand p,
  .newsletter p {
    margin-inline: auto;
  }

  .newsletter-form {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn-lg {
    width: 100%;
  }
}