* {
  box-sizing: border-box;
}

:root {
  --bg: #071019;
  --bg-soft: rgba(10, 18, 29, 0.72);
  --panel: rgba(8, 16, 26, 0.58);
  --panel-strong: rgba(8, 16, 26, 0.82);
  --text: #f4f7fb;
  --muted: #b7c2ce;
  --muted-2: #94a3b8;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #62d8ff;
  --accent-strong: #8ce9ff;
  --warm: #f7d88f;
  --radius: 28px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --max: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background-color: var(--bg);
  background-image: url("images/info-system-city-bg.png");
  background-repeat: repeat-y;
  background-position: top center;
  background-size: 100% auto;
  background-attachment: scroll;
  line-height: 1.6;
}

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

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

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(6, 12, 19, 0.48);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(135deg, #3ce38d, #6cf7d0);
  box-shadow: 0 0 16px rgba(60, 227, 141, 0.7);
}

.menu {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.menu a {
  color: var(--muted);
  font-size: 0.97rem;
}

.menu a:hover,
.menu a:focus-visible {
  color: var(--text);
}

.menu-cta {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(98, 216, 255, 0.28);
  background: rgba(98, 216, 255, 0.1);
  color: #e8fbff !important;
}

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg,
.hero-overlay,
.hero-grid,
.hero-lines {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background-image: url("images/info-system-city-bg.png");
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(4, 10, 18, 0.82) 0%, rgba(4, 10, 18, 0.68) 36%, rgba(4, 10, 18, 0.5) 58%, rgba(4, 10, 18, 0.78) 100%),
    linear-gradient(180deg, rgba(7, 16, 25, 0.2) 0%, rgba(7, 16, 25, 0.68) 100%);
}

.hero-grid {
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.22) 1px, transparent 1px);
  background-size: 56px 56px;
}

.line {
  position: absolute;
  height: 1px;
  background: rgba(98, 216, 255, 0.22);
}

.dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.line-1 {
  left: 0;
  top: 140px;
  width: 34vw;
}

.dot-1 {
  left: 14vw;
  top: 135px;
  background: rgba(98, 216, 255, 0.9);
  box-shadow: 0 0 20px rgba(98, 216, 255, 0.75);
}

.line-2 {
  right: 10vw;
  top: 24vh;
  width: 24vw;
  background: rgba(247, 216, 143, 0.18);
}

.dot-2 {
  right: 10vw;
  top: calc(24vh - 5px);
  background: rgba(247, 216, 143, 0.72);
  box-shadow: 0 0 18px rgba(247, 216, 143, 0.56);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 48px;
  align-items: center;
  padding: 110px 0 90px;
}

.eyebrow,
.section-eyebrow {
  margin: 0 0 18px;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 16, 26, 0.38);
  color: #d9f7ff;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.hero-copy h1 {
  margin: 0;
  max-width: 840px;
  font-size: clamp(2.85rem, 6vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.lead {
  margin: 26px 0 0;
  max-width: 760px;
  font-size: 1.13rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 18px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: rgba(98, 216, 255, 0.14);
  border-color: rgba(98, 216, 255, 0.28);
  color: #e9fbff;
}

.btn-secondary {
  background: rgba(8, 16, 26, 0.42);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text);
}

.hero-highlights {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.mini-card {
  padding: 16px 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(8, 16, 26, 0.4);
  backdrop-filter: blur(10px);
}

.mini-card p {
  margin: 0;
}

.mini-label,
.panel-label {
  margin-bottom: 8px !important;
  color: var(--muted-2);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.hero-panel {
  border-radius: 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(7, 14, 22, 0.46);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.panel-top {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 14, 22, 0.58);
}

.panel-top span {
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.panel-top span:nth-child(1) { background: rgba(251, 113, 133, 0.75); }
.panel-top span:nth-child(2) { background: rgba(250, 204, 21, 0.78); }
.panel-top span:nth-child(3) { background: rgba(74, 222, 128, 0.78); }

.panel-top strong {
  margin-left: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.panel-main,
.panel-card {
  border: 1px solid var(--line);
  background: rgba(10, 18, 29, 0.5);
  border-radius: 26px;
}

.panel-main {
  padding: 24px;
}

.panel-main h2,
.section h2,
.split-box h2,
.contact-box h2 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.panel-main-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.panel-main p:last-child {
  margin: 18px 0 0;
  color: var(--muted);
}

.pill {
  padding: 8px 12px;
  border-radius: 999px;
  white-space: nowrap;
  font-size: 0.88rem;
  color: #b8ffd8;
  border: 1px solid rgba(74, 222, 128, 0.18);
  background: rgba(74, 222, 128, 0.1);
}

.hero-panel {
  padding-bottom: 22px;
}

.hero-panel .panel-main,
.hero-panel .panel-grid {
  margin: 22px;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.panel-card {
  padding: 20px;
}

.panel-card h3 {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.35;
}

.panel-accent {
  grid-column: 1 / -1;
  background: rgba(98, 216, 255, 0.1);
  border-color: rgba(98, 216, 255, 0.18);
}

.section {
  padding: 92px 0;
}

.section-alt {
  padding-top: 0;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 40px;
}

.section-heading h2,
.split-box h2,
.contact-box h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-heading p:last-child,
.split-box p:last-of-type,
.contact-box p:last-of-type {
  color: var(--muted);
  font-size: 1.08rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.service-card {
  padding: 26px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: rgba(8, 16, 26, 0.38);
  backdrop-filter: blur(8px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
}

.service-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 16px;
  border: 1px solid rgba(98, 216, 255, 0.2);
  background: rgba(98, 216, 255, 0.1);
}

.service-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.service-card p {
  margin: 0;
  color: var(--muted);
}

.split-box,
.contact-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 34px;
  border-radius: 32px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(8, 16, 26, 0.52), rgba(14, 23, 35, 0.48));
  backdrop-filter: blur(10px);
}

.section-eyebrow-alt {
  color: #ffe6b0;
}

.scope-box,
.contact-card {
  min-width: 300px;
  padding: 22px 24px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(8, 16, 26, 0.42);
}

.scope-title,
.contact-name {
  margin: 0 0 10px;
  color: var(--muted-2);
  font-weight: 600;
}

.scope-box ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
}

.scope-box li + li {
  margin-top: 6px;
}

.contact-card {
  font-style: normal;
}

.contact-card p {
  margin: 0 0 6px;
}

.contact-card a:hover,
.contact-card a:focus-visible {
  color: var(--accent-strong);
}

@media (max-width: 1080px) {
  .hero-content,
  .split-box,
  .contact-box,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: 100%;
  }

  .hero-panel,
  .scope-box,
  .contact-card {
    min-width: 0;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .site-header {
    position: relative;
  }

  .nav {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .menu {
    gap: 12px 16px;
  }

  .hero-content {
    padding: 72px 0 68px;
  }

  .hero-highlights,
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .section,
  .section-alt {
    padding: 74px 0;
  }

  .split-box,
  .contact-box {
    padding: 24px;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}