:root {
  --navy: #0f172a;
  --navy-light: #1e293b;
  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-600: #475569;
  --gray-700: #334155;
  --white: #ffffff;
  --accent: #10b981;
  
  --radius: 12px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--navy);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

.container {
  width: min(1200px, calc(100% - 3rem));
  margin: 0 auto;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 0.75rem 1rem;
}
.skip:focus { left: 1rem; top: 1rem; z-index: 50; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--navy);
  font-weight: 700;
  font-size: 1.25rem;
}
.brand__mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--white);
  border-radius: 8px;
  font-weight: 900;
}
.brand--small .brand__mark { width: 32px; height: 32px; }

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  text-decoration: none;
  color: var(--gray-600);
  font-weight: 500;
  transition: color 200ms;
}
.nav__link:hover { color: var(--navy); }
.nav__link.is-active { color: var(--blue); font-weight: 600; }

.menu {
  display: none;
  border: 1px solid var(--gray-300);
  background: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--navy);
}

.mobile {
  border-top: 1px solid var(--gray-200);
  background: var(--white);
}
.mobile__inner {
  padding: 1rem 0;
  display: grid;
  gap: 0.5rem;
}
.mobile__link {
  display: block;
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  transition: background 200ms;
}
.mobile__link:hover { background: var(--gray-100); }

.marquee {
  background: linear-gradient(90deg, var(--blue), var(--accent));
  color: var(--white);
  overflow: hidden;
  padding: 0.5rem 0;
}
.marquee__track {
  display: inline-flex;
  gap: 2rem;
  white-space: nowrap;
  font-weight: 700;
  animation: marquee 20s linear infinite;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.hero {
  padding: 5rem 0 4rem;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}
.hero__copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--navy);
}
.hero__copy .underline {
  background: linear-gradient(120deg, var(--blue) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.kicker {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}
.lede {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin: 0 0 1rem;
  max-width: 60ch;
}
.fineprint {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin: 0 0 1.5rem;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  transition: all 200ms;
  border: none;
  cursor: pointer;
}
.btn--primary {
  background: var(--navy);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--navy-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn--ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--gray-300);
}
.btn--ghost:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.metric {
  padding: 1rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.metric__value {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--navy);
}
.metric__label {
  color: var(--gray-600);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.hero__art {
  max-width: 450px;
}
.hero__art img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.hero__art figcaption {
  margin-top: 0.5rem;
  text-align: center;
  color: var(--gray-600);
  font-size: 0.875rem;
}

.panel {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.panel__title {
  font-weight: 700;
  margin-bottom: 1rem;
}
.bullets {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--gray-700);
}
.bullets li { margin: 0.5rem 0; }
.panel__footer { margin-top: 1rem; }

.section {
  padding: 4rem 0;
}
.section:nth-child(even) {
  background: var(--gray-50);
}
.section__head {
  text-align: center;
  margin-bottom: 3rem;
}
.section__head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--navy);
}
.section__head p {
  margin: 0;
  color: var(--gray-600);
  font-size: 1.125rem;
  max-width: 60ch;
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 1.5rem;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card h3 {
  margin: 0 0 0.75rem;
  font-weight: 700;
  color: var(--navy);
}
.card p {
  margin: 0;
  color: var(--gray-600);
  line-height: 1.6;
}

.card--accent {
  border-top: 3px solid var(--blue);
}
.card--accent2 {
  border-top: 3px solid var(--accent);
}

.stack { display: grid; gap: 1.5rem; }
.case {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.case__meta h3 {
  margin: 0.5rem 0 0.5rem;
  font-weight: 700;
  color: var(--navy);
}
.case__meta p { margin: 0; color: var(--gray-600); }
.case__body ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--gray-700);
}
.case__body li { margin: 0.5rem 0; }

.tag {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
}

.check {
  margin: 0.5rem 0 0;
  padding-left: 0;
  list-style: none;
}
.check li {
  padding-left: 1.75rem;
  position: relative;
  margin: 0.75rem 0;
  color: var(--gray-700);
}
.check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
  margin: 2rem 0;
  padding: 2rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.feature__img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.feature__copy h3 {
  margin: 0 0 0.5rem;
  font-weight: 700;
  color: var(--navy);
}
.feature__copy p { margin: 0 0 1rem; color: var(--gray-600); }

.cta {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, var(--blue) 0%, var(--accent) 100%);
  color: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.cta__copy h3 { margin: 0 0 0.5rem; }
.cta__copy p { margin: 0; opacity: 0.9; }

.form { display: grid; gap: 1rem; }
label {
  display: block;
}
label span {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--navy);
}
input, textarea {
  width: 100%;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 0.75rem;
  font: inherit;
  background: var(--white);
}
input:focus, textarea:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
textarea { resize: vertical; }
.form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.checkbox {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  font-weight: 600;
}
.checkbox input { width: auto; }

.contact {
  display: grid;
  gap: 1rem;
}
.divider {
  height: 1px;
  background: var(--gray-200);
  margin: 1.5rem 0;
}

.footer {
  border-top: 1px solid var(--gray-200);
  padding: 2rem 0;
  background: var(--gray-50);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}
.footer__right {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.link {
  color: var(--blue);
  font-weight: 600;
  text-decoration: none;
  transition: color 200ms;
}
.link:hover { color: var(--navy); }

.muted { color: var(--gray-600); }
.tiny { font-size: 0.875rem; }

.reveal, .reveal--left, .reveal--right, .reveal--scale {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.reveal.is-visible, .reveal--left.is-visible, .reveal--right.is-visible, .reveal--scale.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--left { transform: translateX(-30px); }
.reveal--left.is-visible { transform: translateX(0); }
.reveal--right { transform: translateX(30px); }
.reveal--right.is-visible { transform: translateX(0); }
.reveal--scale { transform: scale(0.95); }
.reveal--scale.is-visible { transform: scale(1); }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; }
  .case { grid-template-columns: 1fr; }
  .nav { display: none; }
  .menu { display: inline-flex; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee__track { animation: none; }
  * { transition: none !important; animation: none !important; }
}

/* Add texture and depth */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.015) 2px, rgba(0,0,0,0.015) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,0.015) 2px, rgba(0,0,0,0.015) 4px);
  pointer-events: none;
  z-index: 1000;
  opacity: 0.4;
}

.hero {
  padding: 5rem 0 4rem;
  background: 
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 200ms;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--accent));
  opacity: 0;
  transition: opacity 200ms;
}
.card:hover::before {
  opacity: 1;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--gray-300);
}

.section:nth-child(even) {
  background: 
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(59, 130, 246, 0.015) 10px, rgba(59, 130, 246, 0.015) 20px),
    var(--gray-50);
}

.panel {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  position: relative;
  background-image: 
    radial-gradient(circle at 100% 0%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
}

.metric {
  padding: 1rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  position: relative;
  background-image: 
    linear-gradient(135deg, rgba(59, 130, 246, 0.02) 0%, transparent 100%);
}

.case {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  background-image: 
    radial-gradient(circle at 0% 0%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.cta {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, var(--blue) 0%, var(--accent) 100%);
  color: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

/* Dark mode toggle button */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  transition: all 200ms;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
}
.theme-toggle:hover {
  background: var(--gray-100);
  border-color: var(--gray-400);
}

/* Dark mode colors */
[data-theme="dark"] {
  --navy: #e2e8f0;
  --navy-light: #cbd5e1;
  --blue: #60a5fa;
  --blue-light: #93c5fd;
  --gray-50: #0f172a;
  --gray-100: #1e293b;
  --gray-200: #334155;
  --gray-300: #475569;
  --gray-600: #cbd5e1;
  --gray-700: #e2e8f0;
  --white: #0f172a;
  --accent: #34d399;
}

[data-theme="dark"] body {
  background: #0f172a;
  color: #e2e8f0;
}

[data-theme="dark"] .hero {
  background: 
    radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.09) 0%, transparent 50%),
    linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] .topbar {
  background: rgba(15, 23, 42, 0.92);
  border-bottom: 1px solid #334155;
}

[data-theme="dark"] .card,
[data-theme="dark"] .panel,
[data-theme="dark"] .metric,
[data-theme="dark"] .case {
  background: #1e293b;
  border-color: #334155;
}

[data-theme="dark"] .btn--ghost {
  background: transparent;
  border-color: #475569;
  color: #e2e8f0;
}
[data-theme="dark"] .btn--ghost:hover {
  background: #1e293b;
  border-color: #64748b;
}

[data-theme="dark"] .btn--primary {
  background: #3b82f6;
  color: #ffffff;
}
[data-theme="dark"] .btn--primary:hover {
  background: #2563eb;
}

[data-theme="dark"] input,
[data-theme="dark"] textarea {
  background: #1e293b;
  border-color: #475569;
  color: #e2e8f0;
}

[data-theme="dark"] .theme-toggle {
  border-color: #475569;
}
[data-theme="dark"] .theme-toggle:hover {
  background: #1e293b;
  border-color: #64748b;
}

[data-theme="dark"] .footer {
  background: #1e293b;
  border-top: 1px solid #334155;
}

[data-theme="dark"] .mobile {
  background: #0f172a;
  border-top: 1px solid #334155;
}

[data-theme="dark"] .mobile__link:hover {
  background: #1e293b;
}