:root {
  --color-bg: #f7f6f3;
  --color-bg-alt: #eef0ec;
  --color-surface: #ffffff;
  --color-ink: #1a2332;
  --color-ink-muted: #4a5568;
  --color-accent: #0d6e6e;
  --color-accent-dark: #095454;
  --color-accent-soft: #d4ecec;
  --color-border: #d8ddd6;
  --color-header: rgba(247, 246, 243, 0.92);
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(26, 35, 50, 0.08);
  --shadow-lg: 0 12px 48px rgba(26, 35, 50, 0.12);
  --max-width: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--color-ink);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
  min-height: var(--header-h);
}

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

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--color-accent);
  border-radius: 6px;
}

.logo-text {
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--color-ink-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-ink);
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

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

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin: 0 0 1.25rem;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin: 0;
}

h3 {
  font-size: 1.35rem;
  margin: 0 0 0.75rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-ink-muted);
  max-width: 52ch;
  margin: 0 0 1.75rem;
}

.section-header {
  max-width: 42rem;
  margin-bottom: 2.5rem;
}

.section-intro {
  margin: 1rem 0 0;
  color: var(--color-ink-muted);
}

.prose p {
  margin: 0 0 1.25rem;
  color: var(--color-ink-muted);
}

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

.prose strong {
  color: var(--color-ink);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

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

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

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}

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

/* Hero */
.hero {
  padding: 3.5rem 0 4.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, var(--color-accent-soft) 0%, transparent 55%),
    var(--color-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-stats li {
  padding: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.hero-stats strong {
  display: block;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.hero-stats span {
  font-size: 0.8125rem;
  color: var(--color-ink-muted);
}

.hero-card {
  padding: 2rem;
  background: var(--color-ink);
  color: #e8eaed;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-card-label {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
}

.hero-card-title {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  line-height: 1.2;
  color: #fff;
}

.hero-card-body {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #b8c0cc;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

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

.two-col {
  column-count: 2;
  column-gap: 2.5rem;
}

.two-col p {
  break-inside: avoid;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  border-color: var(--color-accent-soft);
  box-shadow: var(--shadow);
}

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

/* Split feature */
.split-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.feature-block {
  padding: 2rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.feature-block p {
  margin: 0 0 1rem;
  color: var(--color-ink-muted);
}

.feature-block p:last-child {
  margin-bottom: 0;
}

/* Timeline */
.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.timeline li {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.timeline li:last-child {
  border-bottom: none;
}

.timeline-step {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-accent);
  line-height: 1;
}

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

/* Tech list */
.tech-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.tech-list li {
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
}

/* Quality */
.quality-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.quality-aside {
  padding: 2rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-lg);
}

.quality-aside h3 {
  color: #fff;
  margin-bottom: 1rem;
}

.quality-aside ul {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.9;
}

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

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

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

/* Cases */
.case-list {
  display: grid;
  gap: 1.25rem;
}

.case-item {
  padding: 2rem;
  background: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow);
}

.case-item p {
  margin: 0;
  color: var(--color-ink-muted);
}

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

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

.article-grid p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-ink-muted);
}

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

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

blockquote p {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.45;
  color: var(--color-ink);
}

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

/* FAQ */
.faq-list {
  max-width: 48rem;
}

.faq-list details {
  border-bottom: 1px solid var(--color-border);
  padding: 0.25rem 0;
}

.faq-list summary {
  padding: 1.25rem 0;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--color-accent);
}

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

.faq-list p {
  margin: 0 0 1.25rem;
  color: var(--color-ink-muted);
  font-size: 0.9375rem;
}

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

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

.contact-info dl {
  margin: 0 0 1.5rem;
}

.contact-info dt {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  margin-top: 1rem;
}

.contact-info dt:first-child {
  margin-top: 0;
}

.contact-info dd {
  margin: 0.25rem 0 0;
  font-weight: 500;
}

.contact-note {
  font-size: 0.9375rem;
  color: var(--color-ink-muted);
}

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

.form-row {
  margin-bottom: 1.25rem;
}

.form-row-full {
  grid-column: 1 / -1;
}

.contact-form label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-ink);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

.form-disclaimer {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-ink-muted);
}

.contact-form .btn {
  width: 100%;
  border: none;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0;
  background: var(--color-ink);
  color: #b8c0cc;
  font-size: 0.9375rem;
}

.footer-inner {
  display: grid;
  gap: 1.5rem;
}

.footer-logo {
  margin: 0 0 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: #fff;
}

.footer-brand p:last-child {
  margin: 0;
}

.footer-legal {
  margin: 0;
  font-size: 0.8125rem;
  opacity: 0.85;
}

/* Form success */
.form-success-msg {
  padding: 1rem;
  margin-bottom: 1rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  color: var(--color-accent-dark);
  font-weight: 500;
}

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

  .two-col {
    column-count: 1;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }
}

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

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    padding: 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s, opacity 0.25s, visibility 0.25s;
  }

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

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

  .site-nav a {
    display: block;
    padding: 0.75rem 0;
    font-size: 1.0625rem;
  }

  .logo-text {
    display: none;
  }

  .section {
    padding: 3rem 0;
  }
}