:root {
  --font-sans: "Avenir Next", "Segoe UI", "Noto Sans", "Helvetica Neue", sans-serif;
  --bg: #060912;
  --bg-soft: #0c1426;
  --surface: rgba(11, 18, 35, 0.72);
  --surface-strong: #0f1930;
  --text: #e8eeff;
  --muted: #9ba8c7;
  --line: rgba(142, 161, 214, 0.26);
  --primary: #405de6;
  --primary-strong: #833ab4;
  --accent: #e1306c;
  --success: #28c48f;
  --danger: #ff5f78;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 45px rgba(2, 5, 14, 0.45);
  --space-1: 0.5rem;
  --space-2: 0.875rem;
  --space-3: 1.25rem;
  --space-4: 1.8rem;
  --space-5: 2.5rem;
  --space-6: 4.5rem;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  line-height: 1.62;
  background:
    radial-gradient(1300px 650px at 8% -15%, rgba(64, 93, 230, 0.32), transparent 55%),
    radial-gradient(1000px 620px at 96% -10%, rgba(225, 48, 108, 0.26), transparent 58%),
    linear-gradient(180deg, #070b14 0%, #05070e 45%, #060912 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(145, 161, 216, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(145, 161, 216, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 30%, transparent 88%);
  opacity: 0.45;
  z-index: -1;
}

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

a {
  color: #8ca7ff;
}

a:hover {
  color: #b6c8ff;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(140, 167, 255, 0.55);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -44px;
  left: 0;
  background: #0f1831;
  color: #fff;
  padding: 0.55rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.section {
  padding: var(--space-6) 0;
}

.section-muted {
  background: linear-gradient(
    180deg,
    rgba(14, 23, 45, 0.8) 0%,
    rgba(10, 16, 32, 0.75) 100%
  );
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(5, 9, 18, 0.74);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 62px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
  font-weight: 700;
}

.brand-text {
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 4px rgba(64, 93, 230, 0.22), 0 0 24px rgba(225, 48, 108, 0.35);
}

.primary-nav {
  display: flex;
  align-items: center;
}

.primary-nav ul {
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-3);
  list-style: none;
}

.primary-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  opacity: 0.92;
}

.primary-nav a:hover {
  opacity: 1;
}

.primary-nav .btn {
  margin-left: var(--space-3);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(13, 21, 41, 0.8);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  font: inherit;
}

.hero-grid {
  display: grid;
  gap: var(--space-4);
}

.eyebrow {
  margin: 0;
  color: #bdc8ef;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.05rem, 5vw, 3.65rem);
  margin: 0.82rem 0 1rem;
  max-width: 17ch;
}

h2 {
  font-size: clamp(1.55rem, 4vw, 2.45rem);
  margin-bottom: 0.8rem;
}

.lead,
.section-intro,
.case-meta,
#about-text {
  color: var(--muted);
  max-width: 68ch;
}

.badge-row {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.badge {
  font-size: 0.82rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(160, 178, 227, 0.3);
  background: rgba(110, 138, 221, 0.13);
  color: #d7e2ff;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: var(--space-4);
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--primary), var(--primary-strong), var(--accent));
  color: #fff;
  font-weight: 700;
  padding: 0.78rem 1.2rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(116, 77, 206, 0.35);
  filter: saturate(1.06);
}

.btn-small {
  padding: 0.48rem 0.85rem;
  font-size: 0.86rem;
}

.btn-ghost {
  background: rgba(12, 20, 38, 0.8);
  color: #d6e2ff;
  border: 1px solid var(--line);
}

.hero-panel,
.card,
.step-item,
.contact-form {
  background: linear-gradient(160deg, rgba(13, 21, 41, 0.88), rgba(11, 17, 33, 0.86));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: var(--space-4);
}

.stats-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.stats-list li {
  padding-bottom: 0.72rem;
  border-bottom: 1px dashed rgba(156, 175, 224, 0.23);
}

.stats-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.stats-list li strong {
  font-size: 1.48rem;
  display: block;
  color: #ffffff;
}

.card-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.card {
  padding: var(--space-4);
  animation: rise 0.55s ease both;
}

.card h3 {
  margin-bottom: 0.65rem;
}

.card-tech {
  border-image: linear-gradient(135deg, rgba(64, 93, 230, 0.62), rgba(225, 48, 108, 0.55)) 1;
}

.step-list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.step-item {
  display: grid;
  gap: 0.35rem;
  padding: var(--space-4);
}

.step-label {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  line-height: 2rem;
  text-align: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(130deg, var(--primary), var(--accent));
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.two-col {
  display: grid;
  gap: var(--space-4);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.88rem;
}

.check-list li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  color: #d8e5ff;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 0.85rem;
  height: 0.85rem;
  margin-top: 0.4rem;
  border-radius: 2px;
  background: linear-gradient(130deg, var(--primary), var(--accent));
}

.contact-wrap {
  display: grid;
  gap: var(--space-4);
}

.contact-form {
  padding: var(--space-4);
  display: grid;
  gap: 0.5rem;
}

label {
  font-weight: 600;
}

input,
textarea {
  border: 1px solid rgba(140, 161, 214, 0.4);
  border-radius: var(--radius-sm);
  padding: 0.72rem 0.8rem;
  font: inherit;
  color: var(--text);
  background: rgba(8, 13, 25, 0.75);
}

.form-feedback {
  margin: 0.5rem 0 0;
  min-height: 1.5em;
}

.form-feedback.ok {
  color: var(--success);
}

.form-feedback.error {
  color: var(--danger);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-4) 0 var(--space-5);
  background: rgba(6, 10, 19, 0.95);
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.footer-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

@keyframes rise {
  from {
    transform: translateY(8px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@media (min-width: 760px) {
  .hero-grid,
  .contact-wrap,
  .two-col {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  #services-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  #advantage-grid,
  #cases-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: 62px;
    right: 1rem;
    left: 1rem;
    background: rgba(11, 18, 35, 0.98);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    padding: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
  }

  .primary-nav.open {
    display: flex;
  }

  .primary-nav ul {
    display: grid;
    gap: 0.8rem;
    margin-bottom: 1rem;
  }

  .primary-nav .btn {
    margin-left: 0;
  }
}

.brand-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 6px;
  display: block;
}

.stack-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stack-item {
  padding: 0.8rem 0.9rem;
  border: 1px solid rgba(157, 177, 231, 0.3);
  border-radius: 999px;
  background: rgba(16, 28, 53, 0.72);
  color: #dbe7ff;
  font-size: 0.9rem;
  text-align: center;
}

.case-card {
  border-color: rgba(176, 98, 205, 0.35);
}

.case-head {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  align-items: flex-start;
}

.case-head h3 {
  margin-bottom: 0.25rem;
}

.case-sector {
  margin: 0;
  font-size: 0.8rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid rgba(156, 176, 229, 0.35);
  border-radius: 999px;
  color: #d7e5ff;
  white-space: nowrap;
}

.case-result {
  margin: 0.5rem 0;
  color: #e8f2ff;
}

.case-deliverables {
  margin: 0.75rem 0;
  padding-left: 1rem;
  color: #c8d6f8;
  font-size: 0.92rem;
}

.case-deliverables li {
  margin: 0.25rem 0;
}

@media (max-width: 560px) {
  .brand-text {
    font-size: 0.9rem;
  }

  .brand-logo {
    width: 24px;
    height: 24px;
  }
}