:root {
  --bg: #07111f;
  --surface: rgba(12, 24, 42, 0.74);
  --surface-strong: rgba(10, 20, 36, 0.92);
  --text: #eef6ff;
  --muted: #9eb6d4;
  --line: rgba(143, 189, 255, 0.18);
  --accent: #278dff;
  --accent-dark: #84d8ff;
  --navy: #09172b;
  --teal: #1dd4ff;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(67, 176, 255, 0.28), transparent 28%),
    radial-gradient(circle at top right, rgba(29, 212, 255, 0.2), transparent 24%),
    radial-gradient(circle at center right, rgba(72, 98, 255, 0.16), transparent 22%),
    linear-gradient(180deg, #050c17 0%, #091221 42%, #07101e 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(140, 197, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 197, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 50%, transparent 100%);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

p {
  margin: 0;
  line-height: 1.6;
}

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

button,
input,
textarea {
  font: inherit;
}

.page-shell {
  width: min(calc(100% - 32px), var(--content-width));
  margin: 0 auto;
  padding: 22px 0 72px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 20px;
  margin-bottom: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(8, 18, 33, 0.8);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #fff, transparent 36%),
    linear-gradient(135deg, var(--accent), var(--teal));
  box-shadow: 0 0 0 6px rgba(67, 176, 255, 0.16);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  transition: color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
  transform: translateY(-1px);
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #0d2038, #102947);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(12, 24, 42, 0.92);
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 42px;
  padding: 52px 0 40px;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 0.86rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.hero h1 {
  font-size: clamp(3.6rem, 8vw, 6.3rem);
  max-width: 12ch;
}

.hero-dynamic {
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-rotator {
  display: inline-flex;
  min-width: 8ch;
  color: var(--accent-dark);
}

.hero-text {
  max-width: 58ch;
  margin-top: 22px;
  color: var(--muted);
  font-size: 1.05rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 22px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, #278dff, #1dd4ff);
  color: #fff;
  box-shadow: 0 14px 28px rgba(29, 144, 255, 0.28);
}

.button-secondary {
  background: rgba(143, 189, 255, 0.1);
  color: var(--text);
}

.button.small {
  padding: 12px 18px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.hero-stats article,
.metric-card,
.service-card,
.faq-item,
.signal-card {
  border: 1px solid rgba(143, 189, 255, 0.14);
  background: rgba(12, 24, 42, 0.72);
  box-shadow: var(--shadow);
}

.hero-stats article {
  padding: 20px;
  border-radius: var(--radius-md);
}

.hero-stats strong {
  display: block;
  font-size: 2rem;
  font-weight: 700;
}

.hero-stats span {
  color: var(--muted);
}

.glass {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(11, 22, 38, 0.88), rgba(10, 19, 34, 0.78));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.glass::after {
  content: "";
  position: absolute;
  inset: auto -30% -45% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(67, 176, 255, 0.18), transparent 72%);
}

.hero-panel {
  padding: 24px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.panel-chip,
.panel-status,
.case-tag {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(143, 189, 255, 0.08);
  color: var(--muted);
  font-size: 0.9rem;
}

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

.signal-card {
  position: relative;
  padding: 20px;
  border-radius: var(--radius-md);
}

.signal-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.signal-card strong {
  display: block;
  font-size: 1.5rem;
}

.signal-card small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.signal-card-accent {
  background: linear-gradient(135deg, rgba(31, 108, 255, 0.9), rgba(29, 212, 255, 0.78));
  color: #fff;
}

.signal-card-accent span,
.signal-card-accent small {
  color: rgba(255, 255, 255, 0.82);
}

.ticker {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(143, 189, 255, 0.08);
  min-height: 56px;
  display: flex;
  align-items: center;
}

.trusted-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 18px 0 28px;
  color: var(--muted);
  font-weight: 600;
}

.trusted-strip span {
  padding: 16px 18px;
  border-top: 1px solid var(--line);
}

.section {
  padding: 82px 0 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 30px;
}

.section-heading h2 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin-bottom: 16px;
}

.section-heading p:last-child {
  color: var(--muted);
  max-width: 62ch;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.service-card strong {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent-dark);
}

.service-card h3 {
  font-size: 1.9rem;
  margin-bottom: 14px;
}

.service-card p {
  color: var(--muted);
  margin-bottom: 20px;
}

.service-list {
  display: grid;
  gap: 10px;
}

.service-list span {
  padding-left: 18px;
  position: relative;
}

.service-list span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--teal));
}

.split-section {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 20px;
  align-items: start;
}

.feature-stack {
  display: grid;
  gap: 16px;
}

.feature-card {
  padding: 24px;
}

.feature-index {
  color: var(--accent-dark);
  font-weight: 700;
}

.feature-card h3 {
  margin: 12px 0;
  font-size: 2rem;
}

.feature-card p {
  color: var(--muted);
}

.case-study {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 20px;
  padding: 24px;
}

.case-meta h3 {
  font-size: 3rem;
  margin: 18px 0;
}

.case-meta p {
  color: var(--muted);
}

.case-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0;
}

.case-kpis article,
.metric-card {
  padding: 18px;
  border-radius: var(--radius-md);
}

.case-kpis span,
.metric-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.case-kpis strong,
.metric-card strong {
  display: block;
  font-size: 1.55rem;
}

.case-controls {
  display: flex;
  gap: 12px;
}

.case-timeline {
  display: grid;
  gap: 12px;
}

.timeline-step {
  position: relative;
  padding: 20px 20px 20px 58px;
  border-radius: var(--radius-md);
  background: rgba(143, 189, 255, 0.08);
}

.timeline-step::before {
  content: attr(data-step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
}

.timeline-step strong {
  display: block;
  margin-bottom: 8px;
}

.timeline-step p {
  color: var(--muted);
}

.calculator-layout {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 22px;
}

.calculator-form {
  display: grid;
  gap: 18px;
  padding: 24px;
}

.calculator-form label {
  display: grid;
  gap: 10px;
  font-weight: 600;
}

.calculator-form input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.range-value {
  color: var(--accent-dark);
}

.calculator-output {
  display: grid;
  gap: 14px;
}

.metric-card {
  background: rgba(12, 24, 42, 0.76);
}

.metric-card.accent {
  background: linear-gradient(135deg, rgba(31, 108, 255, 0.94), rgba(29, 212, 255, 0.84));
  color: #fff;
}

.metric-card.accent span {
  color: rgba(255, 255, 255, 0.82);
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.faq-question strong {
  font-size: 1.1rem;
}

.faq-question span {
  font-size: 1.6rem;
  color: var(--accent-dark);
  transition: transform 180ms ease;
}

.faq-answer {
  max-height: 0;
  padding: 0 20px;
  overflow: hidden;
  color: var(--muted);
  transition: max-height 220ms ease, padding-bottom 220ms ease;
}

.faq-item.is-open .faq-answer {
  max-height: 200px;
  padding-bottom: 20px;
}

.faq-item.is-open .faq-question span {
  transform: rotate(45deg);
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 20px;
  padding: 28px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid rgba(143, 189, 255, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(10, 20, 36, 0.84);
  color: var(--text);
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(158, 182, 212, 0.8);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(67, 176, 255, 0.22);
  border-color: rgba(67, 176, 255, 0.42);
}

.form-feedback {
  min-height: 24px;
  color: var(--accent-dark);
}

.form-feedback.is-pending {
  color: rgba(228, 236, 255, 0.82);
}

.form-feedback.is-success {
  color: #8df0b1;
}

.form-feedback.is-error {
  color: #ff9c9c;
}

@media (max-width: 980px) {
  .hero,
  .split-section,
  .case-study,
  .calculator-layout,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .trusted-strip,
  .hero-stats,
  .case-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--content-width));
  }

  .site-header {
    top: 10px;
    padding: 14px 16px;
    border-radius: 26px;
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    display: grid;
    gap: 10px;
    padding: 16px;
    border-radius: 24px;
    background: rgba(8, 18, 33, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-header.is-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    padding-top: 26px;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 15vw, 4.3rem);
  }

  .service-grid,
  .trusted-strip,
  .hero-stats,
  .case-kpis,
  .signal-grid {
    grid-template-columns: 1fr;
  }

  .case-meta h3 {
    font-size: 2.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}