/* DVN Synthesis — GitHub Pages static site */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --background: #05070d;
  --foreground: #e9edf5;
  --card: #0a0e1a;
  --card-foreground: #e9edf5;
  --primary: #3b6ff0;
  --primary-foreground: #04070d;
  --secondary: #10182b;
  --secondary-foreground: #e9edf5;
  --muted: #10182b;
  --muted-foreground: #8993ab;
  --accent: #2ed679;
  --accent-foreground: #04140b;
  --destructive: #f87171;
  --success: #34d399;
  --warning: #fbbf24;
  --border: #16203a;
  --radius: 0.625rem;
  --max-width: 80rem;
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

main { flex: 1; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  background: color-mix(in srgb, var(--background) 85%, transparent);
  backdrop-filter: blur(12px);
}
.brand-gradient-bar {
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.logo-link img { width: 34px; height: 34px; object-fit: contain; }
.logo-link span.muted { color: var(--muted-foreground); font-weight: 500; }

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.25rem;
}
@media (min-width: 1024px) { .nav-desktop { display: flex; } }

.nav-desktop a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: color 0.15s;
}
.nav-desktop a:hover, .nav-desktop a.active { color: var(--foreground); }

.header-actions { display: none; align-items: center; gap: 0.75rem; }
@media (min-width: 1024px) { .header-actions { display: flex; } }

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  color: var(--foreground);
  cursor: pointer;
  border-radius: var(--radius);
}
.menu-toggle:hover { background: var(--secondary); }
@media (min-width: 1024px) { .menu-toggle { display: none; } }

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(5, 7, 13, 0.6);
}
.mobile-nav.open { display: block; }
.mobile-nav-panel {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: min(100%, 20rem);
  background: var(--card);
  border-left: 1px solid var(--border);
  padding: 1.5rem;
  overflow-y: auto;
}
.mobile-nav-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--foreground);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}
.mobile-nav a {
  display: block;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-foreground);
  border-radius: var(--radius);
}
.mobile-nav a:hover { background: var(--secondary); color: var(--foreground); }
.mobile-nav-actions {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  font-family: inherit;
  line-height: 1.4;
}
.btn:hover { opacity: 0.9; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--foreground);
}
.btn-outline:hover { background: var(--secondary); }
.btn-ghost { background: transparent; color: var(--foreground); }
.btn-ghost:hover { background: var(--secondary); }
.btn-accent { background: var(--accent); color: var(--accent-foreground); }
.btn-block { width: 100%; }

/* Sections */
.section { padding: 4rem 0; }
.section-sm { padding: 2rem 0; }
.section-alt { background: color-mix(in srgb, var(--secondary) 20%, transparent); border-top: 1px solid var(--border); }
.section-border { border-top: 1px solid var(--border); }

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-heading { max-width: 42rem; }
.section-heading.center { margin: 0 auto; text-align: center; }
.section-heading h2 {
  margin-top: 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.section-heading p {
  margin-top: 0.75rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 0 5rem;
  text-align: center;
}
@media (min-width: 640px) { .hero { padding-top: 7rem; } }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--border) 70%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--border) 70%, transparent) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.4;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 55% at 22% -10%, color-mix(in srgb, var(--primary) 26%, transparent), transparent 70%),
    radial-gradient(ellipse 55% 50% at 82% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; max-width: 48rem; margin: 0 auto; }
.hero h1 {
  margin-top: 1.5rem;
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-wrap: balance;
}
.hero h1 .accent { color: var(--accent); }
.hero p {
  margin: 1.5rem auto 0;
  max-width: 42rem;
  font-size: 1.125rem;
  color: var(--muted-foreground);
  line-height: 1.7;
  text-wrap: balance;
}
.hero-actions {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .hero-actions { flex-direction: row; justify-content: center; }
}

.stats-grid {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 640px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-value { font-size: 1.75rem; font-weight: 600; }
@media (min-width: 640px) { .stat-value { font-size: 1.875rem; } }
.stat-label { margin-top: 0.25rem; font-size: 0.75rem; color: var(--muted-foreground); }

/* Cards */
.card-grid {
  display: grid;
  gap: 1.5rem;
}
.card-grid-2 { grid-template-columns: 1fr; }
.card-grid-3 { grid-template-columns: 1fr; }
.card-grid-4 { grid-template-columns: 1fr; }
.card-grid-5 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .card-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-5 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .card-grid-5 { grid-template-columns: repeat(5, 1fr); }
}

.card {
  background: color-mix(in srgb, var(--card) 60%, transparent);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  padding: 1.5rem;
  transition: border-color 0.15s;
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.card.featured {
  border-color: color-mix(in srgb, var(--primary) 60%, transparent);
  box-shadow: 0 8px 32px color-mix(in srgb, var(--primary) 10%, transparent);
}
.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
}
.card-icon .icon { flex-shrink: 0; }
.card-icon.accent { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent); }
.card-icon.destructive { background: color-mix(in srgb, var(--destructive) 10%, transparent); color: var(--destructive); }
.card-icon.primary { background: color-mix(in srgb, var(--primary) 10%, transparent); color: var(--primary); }
.icon {
  display: block;
  flex-shrink: 0;
}
.check-icon {
  display: inline-flex;
  align-items: center;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.check-icon .icon { width: 1rem; height: 1rem; }
.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--foreground);
}
.menu-toggle .icon { width: 1.375rem; height: 1.375rem; }
.mobile-nav-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.diagram-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16/9;
  border-bottom: 1px solid var(--border);
  margin: -1.5rem -1.5rem 1rem;
  background: color-mix(in srgb, var(--secondary) 40%, transparent);
  color: var(--accent);
}
.diagram-icon .icon { width: 2rem; height: 2rem; opacity: 0.85; }
.video-play-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--accent);
}
.video-play-icon .icon { width: 1.5rem; height: 1.5rem; margin-left: 0.15rem; }
.card h3 { margin-top: 0.75rem; font-size: 1rem; font-weight: 600; }
.card p { margin-top: 0.5rem; font-size: 0.875rem; color: var(--muted-foreground); line-height: 1.6; }
.card-price { margin-top: 0.75rem; font-size: 1.5rem; font-weight: 600; }
.card-billing { font-size: 0.75rem; color: var(--muted-foreground); }

.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: calc(var(--radius) - 2px);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
}
.badge-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted-foreground);
}

.link-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
}
.link-accent:hover { text-decoration: underline; }

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--card) 50%, transparent);
}
.check-list li + li { margin-top: 0.75rem; }

.outcome-grid {
  display: grid;
  gap: 0.75rem;
}
@media (min-width: 640px) { .outcome-grid { grid-template-columns: repeat(2, 1fr); } }

.two-col {
  display: grid;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 1024px) { .two-col { grid-template-columns: 1fr 1fr; } }

.cta-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent);
}
.cta-card.primary-bg {
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 10%, transparent), transparent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--background);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.5fr repeat(3, 1fr); }
}
.footer-brand p {
  margin-top: 1rem;
  max-width: 20rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}
.footer-col h4 { font-size: 0.875rem; font-weight: 600; }
.footer-col ul { margin-top: 1rem; }
.footer-col li + li { margin-top: 0.75rem; }
.footer-col a {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--foreground); }
.footer-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--muted-foreground);
}
@media (min-width: 640px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
}

/* Forms */
.form-card {
  max-width: 36rem;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 2rem;
}
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  font-family: inherit;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--ring, var(--primary));
  outline-offset: 1px;
}
.form-group textarea { min-height: 6rem; resize: vertical; }

.form-row {
  display: grid;
  gap: 0 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .form-row { grid-template-columns: repeat(2, 1fr); }
}

/* Scorecard */
.scorecard-progress {
  height: 4px;
  background: var(--secondary);
  border-radius: 2px;
  margin-bottom: 2rem;
  overflow: hidden;
}
.scorecard-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s;
}
.scorecard-question { margin-bottom: 2rem; }
.scorecard-question h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.scorecard-category {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.radio-group { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }
.radio-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.875rem;
  transition: border-color 0.15s, background 0.15s;
}
.radio-option:hover { border-color: var(--primary); }
.radio-option.selected { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, transparent); }
.radio-option input { accent-color: var(--primary); }

.scorecard-result {
  text-align: center;
  padding: 2rem;
}
.scorecard-score {
  font-size: 4rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.scorecard-tier { margin-top: 0.5rem; font-size: 1.25rem; font-weight: 600; }
.scorecard-desc { margin-top: 1rem; color: var(--muted-foreground); max-width: 32rem; margin-left: auto; margin-right: auto; }

.hidden { display: none !important; }

/* Service detail */
.service-card { scroll-margin-top: 6rem; }
.deliverable-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.75rem; }
.deliverable-tags span {
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  background: var(--secondary);
  border-radius: calc(var(--radius) - 2px);
  color: var(--muted-foreground);
}

.about-logo-box {
  aspect-ratio: 1;
  max-width: 20rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: color-mix(in srgb, var(--secondary) 40%, transparent);
  padding: 2.5rem;
}
.about-logo-box img { width: 100%; height: 100%; object-fit: contain; }

.page-header { padding: 4rem 0 2rem; text-align: center; }
@media (min-width: 640px) { .page-header { padding-top: 6rem; } }

/* Careers */
.careers-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}
.careers-nav-link {
  font-size: 0.8125rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted-foreground);
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.careers-nav-link:hover {
  color: var(--foreground);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.careers-dept {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5rem;
}
.careers-dept:last-child { margin-bottom: 0; }
.careers-dept-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.careers-dept-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  flex: 1;
}
.role-card h4 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}
.role-card p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  line-height: 1.6;
}
#internships { scroll-margin-top: 5rem; }

/* DVN pillars & framework */
.dvn-quote {
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--accent);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--foreground);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.dvn-pillar {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5rem;
}
.dvn-pillar:last-child { margin-bottom: 0; }
.dvn-pillar-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}
.pillar-letter {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  min-width: 3rem;
}
.pillar-letter-sm {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}
.dvn-pillar-header h3 {
  font-size: 1.375rem;
  font-weight: 600;
}
.dvn-pillar-header p {
  margin-top: 0.5rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}