:root {
  --bg: #09111f;
  --bg-deep: #060c17;
  --panel: rgba(12, 22, 40, 0.72);
  --panel-strong: rgba(14, 26, 46, 0.9);
  --panel-light: #ffffff;
  --text: #f4f7fb;
  --text-dark: #142033;
  --muted: #a8b4c7;
  --muted-dark: #5f6f86;
  --line: rgba(255, 255, 255, 0.08);
  --line-dark: rgba(10, 22, 40, 0.08);
  --blue-1: #0d1d35;
  --blue-2: #13294c;
  --blue-3: #193865;
  --red: #d61f2c;
  --red-deep: #aa1621;
  --red-soft: rgba(214, 31, 44, 0.1);
  --white: #ffffff;
  --off-white: #f4f7fb;
  --soft: #edf3fb;
  --shadow-lg: 0 24px 70px rgba(3, 10, 24, 0.28);
  --shadow-md: 0 14px 40px rgba(6, 14, 28, 0.16);
  --shadow-sm: 0 8px 22px rgba(6, 14, 28, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1240px;
  --header-height: 94px;
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(6, 12, 24, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.nav-wrap {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.brand-logo {
  width: 128px;
  height: auto;
  object-fit: contain;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  flex-shrink: 0;
}

.brand-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1;
  min-width: 0;
}

.brand-text {
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.01em;
  text-transform: none;
  white-space: nowrap;
}

.brand-tagline {
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #e33a43;
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav a {
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.96rem;
  font-weight: 600;
  transition: var(--transition);
}

.desktop-nav a:hover {
  color: var(--white);
}

.header-cta,
.mobile-menu-cta,
.btn,
.email-link {
  transition: var(--transition);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  color: var(--white);
  font-weight: 700;
  background: linear-gradient(135deg, rgba(214, 31, 44, 0.95), rgba(170, 22, 33, 0.95));
  box-shadow: 0 12px 28px rgba(214, 31, 44, 0.22);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(214, 31, 44, 0.3);
}

.menu-toggle {
  display: none;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 999px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(7, 13, 25, 0.96);
}

.mobile-menu.open {
  display: block;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 12px 20px 22px;
  gap: 10px;
}

.mobile-nav a {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 600;
  padding: 12px 0;
}

.mobile-menu-cta {
  margin-top: 8px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 50px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  color: var(--white);
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(214, 31, 44, 0.22);
}

/* Hero */

.hero {
  position: relative;
  min-height: 100vh;
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 90px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(4, 9, 19, 0.16) 0%, rgba(4, 9, 19, 0.52) 100%),
    url("images/hero-night.jpg") center center / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 10, 20, 0.9) 0%, rgba(8, 16, 31, 0.8) 38%, rgba(9, 17, 31, 0.4) 100%);
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(214, 31, 44, 0.14), transparent 28%),
    radial-gradient(circle at 84% 28%, rgba(80, 124, 224, 0.16), transparent 26%);
  z-index: 2;
}

.hero-noise {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mix-blend-mode: soft-light;
}

.hero-grid {
  position: relative;
  z-index: 3;
  min-height: calc(100vh - var(--header-height) - 48px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  align-items: center;
  gap: 36px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.section-tag,
.mini-tag,
.panel-label,
.coverage-stat-label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 18px;
  color: #d7e2f8;
  font-size: 0.88rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.4rem, 8vw, 6.8rem);
  line-height: 0.93;
  letter-spacing: -0.05em;
  color: #fffdf6;
  text-shadow:
    0 10px 34px rgba(214, 31, 44, 0.18),
    0 20px 55px rgba(0, 0, 0, 0.22);
}

.hero-tagline-main {
  margin: 18px 0 0;
  font-size: 1.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.96);
}

.hero-text {
  max-width: 700px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 800;
  border: 0;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  color: var(--white);
  box-shadow: 0 16px 34px rgba(214, 31, 44, 0.24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(214, 31, 44, 0.28);
}

.btn-light {
  background: var(--white);
  color: var(--blue-1);
  box-shadow: var(--shadow-md);
}

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

.hero-panel {
  display: flex;
  justify-content: flex-end;
}

.hero-panel-card {
  width: min(100%, 430px);
  background: linear-gradient(180deg, rgba(13, 24, 42, 0.82), rgba(10, 20, 36, 0.7));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
}

.panel-label {
  margin: 0 0 22px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.74rem;
}

.hero-metrics {
  display: grid;
  gap: 18px;
}

.metric {
  padding: 18px 18px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-value {
  display: block;
  color: var(--white);
  font-size: 1.18rem;
  font-weight: 800;
  line-height: 1.15;
}

.metric-label {
  display: block;
  margin-top: 7px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
}

.hero-panel-line {
  width: 100%;
  height: 1px;
  margin: 22px 0;
  background: linear-gradient(90deg, rgba(214, 31, 44, 0.2), rgba(255, 255, 255, 0.08));
}

.panel-copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

/* Reveal */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: 0.75s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* General sections */

.section {
  position: relative;
  padding: 110px 0;
}

.section-light {
  background: var(--off-white);
  color: var(--text-dark);
}

.section-dark {
  background:
    linear-gradient(180deg, #0b1628 0%, #10203a 100%);
  color: var(--white);
}

.section-heading {
  max-width: 820px;
}

.section-heading.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-block;
  margin: 0 0 16px;
  color: var(--red);
  font-size: 0.78rem;
}

.section-tag-dark-bg {
  color: rgba(255, 255, 255, 0.78);
}

.section-tag-light {
  color: rgba(255, 255, 255, 0.78);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.section-lead {
  max-width: 760px;
  margin: 18px auto 0;
  color: var(--muted-dark);
  font-size: 1.04rem;
}

.section-lead-dark {
  color: rgba(255, 255, 255, 0.74);
}

/* Trust strip */

.trust-strip {
  position: relative;
  z-index: 5;
  margin-top: -54px;
}

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

.trust-item {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(11, 25, 48, 0.08);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: var(--shadow-md);
}

.trust-title {
  display: block;
  color: var(--text-dark);
  font-weight: 800;
  font-size: 1rem;
}

.trust-text {
  display: block;
  margin-top: 8px;
  color: var(--muted-dark);
  font-size: 0.94rem;
}

/* Intro */

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 34px;
  align-items: start;
}

.intro-copy {
  font-size: 1.02rem;
  color: var(--muted-dark);
}

.intro-copy p {
  margin: 0 0 18px;
}

.intro-copy p:last-child {
  margin-bottom: 0;
}

/* Services */

.services-grid {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.service-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.985), rgba(247, 250, 255, 0.96));
  color: var(--text-dark);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(12, 24, 44, 0.08);
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, rgba(214, 31, 44, 0.9), rgba(214, 31, 44, 0.22));
}

.service-card:hover {
  transform: translateY(-4px);
  transition: var(--transition);
}

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--red-soft);
  color: var(--red);
  font-weight: 900;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}

.service-card h3 {
  margin: 0 0 12px;
  font-size: 1.24rem;
  line-height: 1.15;
}

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

/* Operations */

.operations-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 34px;
  align-items: start;
}

.operations-copy p {
  color: var(--muted-dark);
  margin: 0 0 18px;
}

.operations-stack {
  display: grid;
  gap: 20px;
}

.operations-card {
  background: var(--white);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.operations-card h3 {
  margin: 0 0 18px;
  color: var(--text-dark);
  font-size: 1.28rem;
}

.operations-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.operations-card li {
  position: relative;
  padding-left: 24px;
  color: var(--muted-dark);
  font-weight: 500;
}

.operations-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--red), #ff6b75);
  box-shadow: 0 0 0 6px rgba(214, 31, 44, 0.08);
}

.operations-card-accent {
  background: linear-gradient(135deg, var(--blue-2) 0%, var(--blue-3) 100%);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-md);
}

.mini-tag {
  display: inline-block;
  margin: 0 0 12px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.68);
}

.operations-card-accent h3 {
  margin: 0;
  color: var(--white);
}

/* Coverage */

.coverage {
  background:
    linear-gradient(135deg, rgba(7, 14, 27, 0.98), rgba(14, 26, 46, 0.97));
  color: var(--white);
}

.coverage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  gap: 34px;
  align-items: start;
}

.coverage-copy p {
  color: rgba(255, 255, 255, 0.76);
  margin: 0 0 18px;
}

.coverage-panel {
  display: grid;
  gap: 18px;
}

.coverage-stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
}

.coverage-stat-label {
  display: inline-block;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.72rem;
}

.coverage-stat-value {
  display: block;
  margin-top: 10px;
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1.2;
}

.coverage-stat p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

/* Why CSC */

.why-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  width: 54px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--red), rgba(214, 31, 44, 0.24));
}

.why-card h3 {
  margin: 8px 0 12px;
  color: var(--text-dark);
  font-size: 1.18rem;
}

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

/* CTA */

.final-cta {
  background:
    linear-gradient(135deg, var(--blue-1) 0%, var(--blue-3) 100%);
  color: var(--white);
}

.final-cta-wrap {
  max-width: 920px;
  text-align: center;
}

.final-cta-wrap h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.final-cta-wrap p:not(.section-tag) {
  max-width: 760px;
  margin: 18px auto 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.04rem;
}

.final-cta-actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.email-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 999px;
  color: var(--white);
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.email-link:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* Footer */

.site-footer {
  background: #050b15;
  color: rgba(255, 255, 255, 0.74);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-wrap {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 10px;
}

.footer-brand strong {
  display: block;
  color: var(--white);
  font-size: 1rem;
}

.footer-brand span {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.9rem;
}

.footer-copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-weight: 600;
}

/* Responsive */

@media (max-width: 1180px) {
  .hero-grid,
  .intro-grid,
  .operations-grid,
  .coverage-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    justify-content: flex-start;
  }

  .trust-grid,
  .services-grid,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 940px) {
  :root {
    --header-height: 82px;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .brand-logo {
    width: 104px;
  }

  .brand-text {
    font-size: 0.98rem;
  }

  .brand-tagline {
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    margin-top: 6px;
  }

  .hero {
    padding-top: calc(var(--header-height) + 34px);
    padding-bottom: 72px;
    background:
      linear-gradient(180deg, rgba(4, 9, 19, 0.2) 0%, rgba(4, 9, 19, 0.56) 100%),
      url("images/hero-night-mobile.jpg") center center / cover no-repeat;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(5, 10, 20, 0.82) 0%, rgba(8, 16, 31, 0.64) 42%, rgba(9, 17, 31, 0.8) 100%);
  }

  .hero-grid {
    min-height: auto;
    gap: 26px;
  }

  .hero-panel-card {
    width: 100%;
  }

  .trust-strip {
    margin-top: -28px;
  }

  .section {
    padding: 88px 0;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .hero h1 {
    font-size: 3.1rem;
  }

  .hero-tagline-main {
    font-size: 1.2rem;
  }

  .hero-text {
    font-size: 1rem;
  }

  .hero-actions,
  .final-cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn,
  .email-link {
    width: 100%;
  }

  .trust-grid,
  .services-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .trust-item,
  .service-card,
  .operations-card,
  .coverage-stat,
  .why-card {
    padding: 22px;
  }

  .section-heading h2,
  .final-cta-wrap h2 {
    font-size: 2.15rem;
  }

  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 18px 0;
  }
}

@media (max-width: 480px) {
  .brand {
    gap: 10px;
  }

  .brand-logo {
    width: 90px;
  }

  .brand-text {
    font-size: 0.82rem;
  }

  .brand-tagline {
    font-size: 0.54rem;
    letter-spacing: 0.1em;
    margin-top: 5px;
  }

  .eyebrow {
    font-size: 0.75rem;
  }

  .hero h1 {
    font-size: 2.6rem;
  }

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

  .metric {
    padding: 15px;
  }
}