:root {
  --font-sans: "Manrope", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --bg: #0b0f14;
  --bg-elev: rgba(12, 18, 25, 0.7);
  --panel: rgba(14, 23, 32, 0.78);
  --text: #e7edf6;
  --muted: #9fb0c5;
  --line: rgba(130, 160, 190, 0.2);
  --accent: #5dd0ff;
  --accent-strong: #3bb6ff;
  --accent-warm: #ffd479;
  --success: #74f0c0;
  --shadow: 0 20px 60px rgba(3, 8, 15, 0.55);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1160px;
  --section-pad: clamp(56px, 8vw, 120px);
}

html[data-theme="light"] {
  --bg: #f7f8fb;
  --bg-elev: rgba(255, 255, 255, 0.78);
  --panel: rgba(255, 255, 255, 0.9);
  --text: #0f1725;
  --muted: #4b5a6c;
  --line: rgba(20, 36, 60, 0.12);
  --accent: #0aa6d1;
  --accent-strong: #087ca0;
  --accent-warm: #f1b24a;
  --success: #12a36b;
  --shadow: 0 20px 60px rgba(15, 23, 37, 0.15);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: 0.1px;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background: radial-gradient(circle at 20% 20%, rgba(93, 208, 255, 0.18), transparent 55%),
    radial-gradient(circle at 80% 0%, rgba(255, 212, 121, 0.12), transparent 45%),
    radial-gradient(circle at 60% 80%, rgba(78, 251, 199, 0.12), transparent 50%);
}

body::after {
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  z-index: -1;
}

img {
  max-width: 100%;
  display: block;
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0 0 12px;
  letter-spacing: 0.4px;
}

h1 {
  font-size: clamp(2.6rem, 4vw, 4.2rem);
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.15;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
}

small {
  color: var(--muted);
}

.container {
  width: min(92%, var(--container));
  margin: 0 auto;
}

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

.section.compact {
  padding: clamp(36px, 6vw, 80px) 0;
}

.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card {
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(10, 16, 24, 0.55);
  box-shadow: 0 20px 40px rgba(2, 8, 15, 0.28);
}

html[data-theme="light"] .card {
  background: rgba(255, 255, 255, 0.85);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  color: #041018;
  box-shadow: 0 14px 28px rgba(40, 190, 255, 0.35);
}

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

.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.btn-ghost {
  border: 1px dashed var(--line);
  color: var(--muted);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  padding: 10px 16px;
  background: var(--accent-warm);
  color: #111;
  border-radius: 999px;
  z-index: 1000;
}

.skip-link:focus {
  left: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(8, 13, 20, 0.75);
  border-bottom: 1px solid var(--line);
}

html[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  box-shadow: 0 0 25px rgba(93, 208, 255, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 10px;
  color: inherit;
}

.mobile-drawer {
  display: none;
}

body.nav-open .mobile-drawer {
  display: block;
  position: fixed;
  inset: 70px 16px auto 16px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--line);
  z-index: 90;
  box-shadow: var(--shadow);
}

.mobile-drawer a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 36px;
  align-items: center;
}

.hero .hero-copy {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero .hero-panel {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: rgba(12, 18, 26, 0.65);
  border: 1px solid var(--line);
}

.trust-strip {
  display: grid;
  gap: 22px;
  align-items: center;
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.logo-placeholder {
  padding: 16px;
  text-align: center;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--line);
  color: var(--muted);
  font-weight: 600;
}

.feature-grid,
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.timeline-step {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(10, 16, 24, 0.5);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.metric {
  padding: 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}

.testimonial {
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.cta-band {
  padding: 36px;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(93, 208, 255, 0.22), rgba(255, 212, 121, 0.2));
  border: 1px solid rgba(93, 208, 255, 0.4);
  display: grid;
  gap: 20px;
  align-items: center;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 24px;
}

.section-title p {
  max-width: 520px;
}

.taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted);
}

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

.process-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.process-index {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(93, 208, 255, 0.2);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--accent);
}

.table-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.listed {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.listed li {
  margin-bottom: 8px;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.case-study {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(10, 16, 24, 0.55);
  display: grid;
  gap: 16px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.85rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.filter-btn {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--accent);
  color: #051018;
}

.article {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.article .toc {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.article .toc a {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.article-content h2,
.article-content h3 {
  margin-top: 28px;
}

.article-content pre {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(15, 22, 32, 0.75);
  border: 1px solid var(--line);
  overflow: auto;
}

.newsletter {
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  font-family: inherit;
}

textarea {
  min-height: 140px;
}

.field-error {
  color: #ffb4b4;
  font-size: 0.85rem;
  min-height: 18px;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent-warm);
  outline-offset: 2px;
}

.site-footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  align-items: start;
}

.footer-note {
  margin-top: 24px;
  font-size: 0.85rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

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

  .section-title {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 980px) {
  .article {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
  }

  .article .toc {
    position: sticky;
    top: 110px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}