:root {
  --color-bg: #0c1117;
  --color-bg-alt: #121a24;
  --color-surface: #1a2433;
  --color-border: #2a3a52;
  --color-text: #e8edf4;
  --color-text-muted: #94a3b8;
  --color-accent: #3b9eff;
  --color-accent-hover: #5eb0ff;
  --color-accent-soft: rgba(59, 158, 255, 0.12);
  --font-display: "Instrument Sans", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  --header-h: 72px;
  --max-width: 1140px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.muted {
  color: var(--color-text-muted);
  font-style: italic;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(12, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-text);
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent), #2563eb);
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: #fff;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
}

.main-nav ul {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #0c1117;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #0c1117;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn-full {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 4rem) 0 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, var(--color-accent-soft), transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(37, 99, 235, 0.08), transparent);
  pointer-events: none;
}

.hero-inner {
  position: relative;
}

.hero-lead {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  max-width: 42rem;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero-stats strong {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-text);
}

.hero-stats span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  margin-bottom: 3rem;
  max-width: 40rem;
}

.section-header.centered {
  text-align: center;
  margin-inline: auto;
  max-width: 44rem;
}

.section-lead {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.prose p {
  color: var(--color-text-muted);
}

.prose p + p {
  margin-top: 1rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(59, 158, 255, 0.4);
  box-shadow: var(--shadow);
}

.card h3 {
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* Features */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.feature {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.feature:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.feature-num {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.8;
}

.feature p {
  color: var(--color-text-muted);
  margin: 0;
}

/* Timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
  max-width: 52rem;
  margin-inline: auto;
}

.timeline li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  border-left: 3px solid var(--color-accent);
}

.timeline h3 {
  margin-bottom: 0.5rem;
}

.timeline p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* Pill grid */
.pill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.pill-block {
  padding: 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.pill-block h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.pill-block p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Tech tags */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.tech-tags li {
  padding: 0.375rem 0.875rem;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
}

/* Cases */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.case {
  padding: 1.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.case h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.75rem;
}

.case p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* Quotes */
.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

blockquote {
  margin: 0;
  padding: 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

blockquote p {
  font-size: 1rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 1rem;
}

blockquote footer {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* FAQ */
.faq-list {
  max-width: 40rem;
}

.faq-list details {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.faq-list summary {
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  color: var(--color-accent);
  font-size: 1.25rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Insights */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.insight-grid article {
  padding: 1.5rem 0;
  border-top: 2px solid var(--color-accent);
}

.insight-grid p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Contact */
.section-contact {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.company-details {
  font-style: normal;
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.company-details p {
  margin-bottom: 1rem;
}

.contact-note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.field {
  margin-bottom: 1.25rem;
}

.field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-legal {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 52rem;
}

/* Responsive */
@media (max-width: 900px) {
  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

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

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

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

  .main-nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .main-nav a {
    display: block;
    padding: 0.75rem;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .section {
    padding: 3.5rem 0;
  }
}