:root {
  --bg: #0d1117;
  --surface: #161b22;
  --text: #e6edf3;
  --muted: #9da7b3;
  --accent: #d4a853;
  --border: #2d333b;
  --radius-btn: 6px;
  --radius-card: 12px;
  --max: 1100px;
  --nav-h: 72px;
  --shadow-btn: 0 8px 20px rgba(212, 168, 83, 0.22);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

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

a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 200;
  padding: 8px 14px;
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius-btn);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

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

.container-narrow {
  width: min(100% - 40px, 640px);
}

.accent {
  color: var(--accent);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(13, 17, 23, 0.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.nav-inner {
  width: min(100% - 40px, var(--max));
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--accent);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: block;
  flex-shrink: 0;
}

.logo:hover {
  text-decoration: none;
}

.logo:active {
  color: #fff;
  text-decoration: none;
}

@media (hover: hover) and (pointer: fine) {
  .logo:hover {
    color: #fff;
  }
}

.logo:focus-visible {
  color: #fff;
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  gap: 8px 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--accent);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--surface);
  cursor: pointer;
}

.menu-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Hero */

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  text-align: center;
  padding: 96px 20px 80px;
}

.hero-glow {
  position: absolute;
  inset: 18% 10% auto;
  height: 420px;
  background: radial-gradient(ellipse at center, rgba(212, 168, 83, 0.16), transparent 68%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  width: min(100%, 860px);
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.15rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero-sub {
  margin: 0 auto 32px;
  max-width: 640px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border: 0;
  border-radius: var(--radius-btn);
  background: var(--accent);
  color: var(--bg);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
}

/* Sections */

.section {
  padding: 88px 0;
}

.section-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}

h2 {
  margin: 0 0 36px;
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.subhead {
  margin: 40px 0 16px;
  font-size: 1.25rem;
  font-weight: 600;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: border-color 0.2s ease;
}

.card:hover {
  border-color: rgba(212, 168, 83, 0.45);
}

.card h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.card ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text);
}

.card li + li {
  margin-top: 8px;
}

/* About */

.about-copy p {
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 72ch;
}

.about-copy p:last-child {
  color: var(--text);
}

.difference-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.difference-list li {
  position: relative;
  padding: 14px 0 14px 22px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.difference-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.difference-list strong {
  color: var(--text);
  font-weight: 600;
}

/* Case studies */

.case-stack {
  display: grid;
  gap: 24px;
}

.case-card h3 {
  margin-bottom: 8px;
}

.case-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 8px;
}

.case-header h3 {
  margin: 0;
}

.case-cta {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 0.95rem;
}

.case-meta {
  font-size: 0.95rem;
}

.case-full {
  margin-top: 24px;
}

.stat-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.stat {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(13, 17, 23, 0.55);
  text-align: center;
}

.stat-number {
  margin: 0;
  color: var(--accent);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.stat-label {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.pull-quote {
  margin: 0;
  padding: 8px 0 0 18px;
  border-left: 3px solid var(--accent);
}

.pull-quote p {
  margin: 0;
  color: var(--text);
  font-size: 1.05rem;
  font-style: italic;
}

.case-as-at {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Contact */

.contact-lead {
  margin: -16px 0 28px;
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 18px;
}

.contact-form .btn {
  justify-self: start;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-weight: 600;
  font-size: 0.95rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}

.field textarea {
  resize: vertical;
  min-height: 140px;
}

.form-success {
  margin-top: 20px;
  color: var(--accent);
  font-weight: 600;
}

.form-error {
  margin-top: 20px;
  color: #f85149;
  font-weight: 600;
}

.hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

.contact-form.is-sent {
  display: none;
}

/* Footer */

.site-footer {
  padding: 40px 0 48px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  background: #0a0d12;
}

.site-footer p {
  margin: 0 0 10px;
}

.footer-links {
  margin: 0;
}

/* Reveal — only hide when JS is ready, so content stays visible without script */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Responsive */

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-row {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 767px) {
  .case-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .site-nav {
    position: absolute;
    top: var(--nav-h);
    right: 20px;
    left: 20px;
    display: none;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 4px;
  }

  .site-nav a {
    display: block;
    padding: 10px 8px;
  }
}

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

  .js .reveal,
  .btn {
    transition: none;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header {
    position: static;
  }

  .hero {
    min-height: auto;
    padding: 80px 20px;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}