/* DTDESK Design System — assets/css/dtdesk.css */

:root {
  --dt-bg-dark: #07111F;
  --dt-bg-dark-secondary: #0D1B2A;
  --dt-brand-blue: #2563EB;
  --dt-accent-cyan: #06B6D4;
  --dt-white: #FFFFFF;
  --dt-bg-light: #F8FAFC;
  --dt-text-primary: #0F172A;
  --dt-text-secondary: #475569;
  --dt-text-dark-muted: #CBD5E1;
  --dt-border: #E2E8F0;
  --dt-success: #16A34A;
  --dt-error: #DC2626;
  --dt-gradient: linear-gradient(135deg, #2563EB, #06B6D4);
  --dt-font-heading: 'Manrope', system-ui, -apple-system, sans-serif;
  --dt-font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --dt-container: min(1200px, calc(100vw - 2rem));
  --dt-header-h: 72px;
  --dt-radius: 12px;
  --dt-radius-lg: 16px;
  --dt-shadow: 0 4px 24px rgba(7, 17, 31, 0.08);
  --dt-shadow-lg: 0 12px 40px rgba(7, 17, 31, 0.12);
  --dt-transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--dt-font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dt-text-primary);
  background: var(--dt-bg-light);
  overflow-x: hidden;
}

body.dt-menu-open { overflow: hidden; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--dt-font-heading);
  line-height: 1.2;
  margin: 0 0 0.75em;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }

p { margin: 0 0 1em; max-width: 65ch; }
a { color: var(--dt-brand-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

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

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

.dt-container {
  width: var(--dt-container);
  margin-inline: auto;
}

/* ---- Header ---- */
.dt-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--dt-header-h);
  background: var(--dt-bg-dark);
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  transition: background var(--dt-transition), box-shadow var(--dt-transition), border-color var(--dt-transition);
}

.dt-header.is-solid {
  background: rgba(7, 17, 31, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.dt-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.dt-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--dt-white);
  line-height: 1.1;
}
.dt-logo:hover { text-decoration: none; color: var(--dt-white); }
.dt-logo-name {
  font-family: var(--dt-font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}
.dt-logo-tag {
  font-size: 0.65rem;
  opacity: 0.75;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.dt-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.dt-nav a {
  color: var(--dt-text-dark-muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--dt-transition), background var(--dt-transition);
}
.dt-nav a:hover,
.dt-nav a.active,
.dt-nav a:focus-visible {
  color: var(--dt-white);
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
  outline: none;
}

.dt-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.dt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 999px;
  font-family: var(--dt-font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform var(--dt-transition), box-shadow var(--dt-transition), background var(--dt-transition);
  white-space: nowrap;
}
.dt-btn:hover { text-decoration: none; transform: translateY(-1px); }
.dt-btn:focus-visible { outline: 2px solid var(--dt-accent-cyan); outline-offset: 2px; }

.dt-btn-primary {
  background: var(--dt-gradient);
  color: var(--dt-white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.dt-btn-primary:hover { box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45); color: var(--dt-white); }

.dt-btn-secondary {
  background: transparent;
  color: var(--dt-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.dt-btn-secondary:hover { background: rgba(255, 255, 255, 0.08); color: var(--dt-white); }

.dt-btn-outline {
  background: transparent;
  color: var(--dt-brand-blue);
  border: 1px solid var(--dt-border);
}
.dt-btn-outline:hover { background: var(--dt-bg-light); color: var(--dt-brand-blue); }

.dt-btn-dark {
  background: var(--dt-bg-dark);
  color: var(--dt-white);
}
.dt-btn-dark:hover { background: var(--dt-bg-dark-secondary); color: var(--dt-white); }

.dt-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  cursor: pointer;
}
.dt-menu-toggle span {
  display: block;
  height: 2px;
  background: var(--dt-white);
  border-radius: 1px;
  transition: transform var(--dt-transition), opacity var(--dt-transition);
}
.dt-header.is-open .dt-menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.dt-header.is-open .dt-menu-toggle span:nth-child(2) { opacity: 0; }
.dt-header.is-open .dt-menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .dt-menu-toggle { display: flex; }
  .dt-nav {
    position: fixed;
    top: var(--dt-header-h);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--dt-bg-dark);
    transform: translateX(100%);
    transition: transform 300ms ease;
    overflow-y: auto;
  }
  .dt-header.is-open .dt-nav { transform: translateX(0); }
  .dt-nav a { padding: 1rem; font-size: 1rem; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .dt-header-cta-desktop { display: none; }
  .dt-header-cta-mobile { display: block; width: 100%; margin-top: 1rem; }
}

@media (min-width: 901px) {
  .dt-header-cta-mobile { display: none; }
}

body { padding-top: var(--dt-header-h); }
section[id] { scroll-margin-top: calc(var(--dt-header-h) + 1rem); }

/* ---- Sections ---- */
.dt-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.dt-section-dark {
  background: var(--dt-bg-dark);
  color: var(--dt-white);
}
.dt-section-dark .dt-text-muted { color: var(--dt-text-dark-muted); }

.dt-section-light { background: var(--dt-bg-light); }
.dt-section-white { background: var(--dt-white); }

.dt-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dt-accent-cyan);
  margin-bottom: 0.75rem;
}

.dt-section-dark .dt-eyebrow { color: var(--dt-accent-cyan); }
.dt-section-light .dt-eyebrow,
.dt-section-white .dt-eyebrow { color: var(--dt-brand-blue); }

.dt-text-muted { color: var(--dt-text-secondary); }
.dt-section-head { margin-bottom: 2.5rem; max-width: 720px; }
.dt-section-head.center { margin-inline: auto; text-align: center; }
.dt-section-head.center p { margin-inline: auto; }

/* ---- Hero ---- */
.dt-hero {
  background: var(--dt-bg-dark);
  color: var(--dt-white);
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(4rem, 8vw, 6rem);
  min-height: calc(100vh - var(--dt-header-h));
  display: flex;
  align-items: center;
}

.dt-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.dt-hero h1 { margin-bottom: 1rem; }
.dt-hero-lead {
  font-size: 1.0625rem;
  color: var(--dt-text-dark-muted);
  max-width: 54ch;
  margin-bottom: 1.75rem;
}

.dt-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.dt-hero-trust {
  font-size: 0.875rem;
  color: var(--dt-text-dark-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.dt-hero-trust span::before {
  content: '·';
  margin-right: 0.5rem;
  opacity: 0.5;
}
.dt-hero-trust span:first-child::before { content: none; margin: 0; }

/* Hero visual — CSS dashboard mockup */
.dt-hero-visual {
  position: relative;
  aspect-ratio: 4/3;
  max-width: 520px;
  margin-inline: auto;
}

.dt-dashboard {
  background: var(--dt-bg-dark-secondary);
  border: 1px solid rgba(203, 213, 225, 0.12);
  border-radius: var(--dt-radius-lg);
  overflow: hidden;
  box-shadow: var(--dt-shadow-lg);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.dt-dashboard-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(203, 213, 225, 0.08);
}
.dt-dashboard-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(203, 213, 225, 0.3);
}
.dt-dashboard-bar span:first-child { background: #EF4444; }
.dt-dashboard-bar span:nth-child(2) { background: #F59E0B; }
.dt-dashboard-bar span:nth-child(3) { background: #22C55E; }

.dt-dashboard-body {
  flex: 1;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
}

.dt-dash-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(203, 213, 225, 0.08);
  border-radius: 8px;
  padding: 12px;
}
.dt-dash-card.wide { grid-column: 1 / -1; }
.dt-dash-card h4 {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dt-text-dark-muted);
  margin: 0 0 8px;
  font-weight: 600;
}
.dt-dash-metric {
  font-family: var(--dt-font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--dt-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.dt-dash-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 48px;
  margin-top: 8px;
}
.dt-dash-bars i {
  flex: 1;
  background: var(--dt-gradient);
  border-radius: 3px 3px 0 0;
  opacity: 0.7;
}
.dt-dash-bars i:nth-child(1) { height: 40%; }
.dt-dash-bars i:nth-child(2) { height: 65%; }
.dt-dash-bars i:nth-child(3) { height: 50%; }
.dt-dash-bars i:nth-child(4) { height: 80%; }
.dt-dash-bars i:nth-child(5) { height: 60%; }

.dt-dash-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.dt-dash-node {
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.75rem;
  color: var(--dt-text-dark-muted);
}
.dt-dash-arrow { color: var(--dt-accent-cyan); font-size: 0.75rem; }

@media (max-width: 900px) {
  .dt-hero-grid { grid-template-columns: 1fr; }
  .dt-hero-visual { order: -1; max-width: 100%; }
}

/* ---- Cards grid ---- */
.dt-grid {
  display: grid;
  gap: 1.5rem;
}
.dt-grid-2 { grid-template-columns: repeat(2, 1fr); }
.dt-grid-3 { grid-template-columns: repeat(3, 1fr); }
.dt-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .dt-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .dt-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .dt-grid-2, .dt-grid-3, .dt-grid-4 { grid-template-columns: 1fr; }
}

.dt-card {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  padding: 1.5rem;
  transition: box-shadow var(--dt-transition), transform var(--dt-transition);
}
.dt-card:hover {
  box-shadow: var(--dt-shadow);
  transform: translateY(-2px);
}

.dt-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--dt-brand-blue);
}

.dt-card h3 { margin-bottom: 0.5rem; font-size: 1.125rem; }
.dt-card p { font-size: 0.9375rem; color: var(--dt-text-secondary); margin-bottom: 1rem; }

.dt-card-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
.dt-card-features li {
  font-size: 0.875rem;
  color: var(--dt-text-secondary);
  padding: 0.25rem 0 0.25rem 1.25rem;
  position: relative;
}
.dt-card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--dt-accent-cyan);
}

.dt-card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dt-brand-blue);
}

.dt-section-dark .dt-card {
  background: var(--dt-bg-dark-secondary);
  border-color: rgba(203, 213, 225, 0.1);
  color: var(--dt-white);
}
.dt-section-dark .dt-card p,
.dt-section-dark .dt-card-features li { color: var(--dt-text-dark-muted); }

/* ---- Tech stack ---- */
.dt-tech-group { margin-bottom: 1.5rem; }
.dt-tech-group h4 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dt-text-secondary);
  margin-bottom: 0.75rem;
}
.dt-tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.dt-tech-chip {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: 999px;
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
  color: var(--dt-text-primary);
}

/* ---- Labs / Demo cards ---- */
.dt-demo-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(6, 182, 212, 0.15);
  color: var(--dt-accent-cyan);
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.dt-mockup {
  background: var(--dt-bg-dark-secondary);
  border-radius: 8px;
  height: 128px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(203, 213, 225, 0.1);
  overflow: hidden;
}
.dt-mockup-inner {
  width: 80%;
  height: 70%;
  background: rgba(255,255,255,0.04);
  border-radius: 6px;
  border: 1px solid rgba(203, 213, 225, 0.08);
}

/* ---- Process timeline ---- */
.dt-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  position: relative;
}
.dt-timeline::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: var(--dt-border);
}
.dt-timeline-step {
  text-align: center;
  position: relative;
}
.dt-timeline-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--dt-gradient);
  color: var(--dt-white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  position: relative;
  z-index: 1;
  font-size: 0.875rem;
}
.dt-timeline-step h4 { font-size: 0.9375rem; margin-bottom: 0.5rem; }
.dt-timeline-step p { font-size: 0.8125rem; color: var(--dt-text-secondary); margin-inline: auto; max-width: 20ch; }

@media (max-width: 900px) {
  .dt-timeline {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .dt-timeline::before {
    top: 0;
    bottom: 0;
    left: 23px;
    right: auto;
    width: 2px;
    height: auto;
  }
  .dt-timeline-step {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 1rem;
    text-align: left;
    padding-bottom: 2rem;
  }
  .dt-timeline-num { margin: 0; }
  .dt-timeline-step p { max-width: none; }
}

/* ---- Founder ---- */
.dt-founder-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius-lg);
  padding: 2rem;
}
.dt-founder-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--dt-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--dt-font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--dt-white);
  flex-shrink: 0;
}
@media (max-width: 640px) {
  .dt-founder-card { grid-template-columns: 1fr; text-align: center; }
  .dt-founder-avatar { margin-inline: auto; }
}

/* ---- CTA band ---- */
.dt-cta-band {
  background: var(--dt-bg-dark);
  color: var(--dt-white);
  padding: clamp(3rem, 6vw, 5rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.dt-cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.15), transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.1), transparent 60%);
  pointer-events: none;
}
.dt-cta-band .dt-container { position: relative; }
.dt-cta-band h2 { margin-bottom: 1rem; }
.dt-cta-band p { color: var(--dt-text-dark-muted); margin-inline: auto; margin-bottom: 1.5rem; }
.dt-cta-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }
.dt-cta-note { font-size: 0.875rem; color: var(--dt-text-dark-muted); margin-top: 1rem; }

/* ---- Contact form ---- */
.dt-form {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius-lg);
  padding: 2rem;
}
.dt-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.dt-form-grid .full { grid-column: 1 / -1; }

.dt-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: var(--dt-text-primary);
}
.dt-form input,
.dt-form select,
.dt-form textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--dt-border);
  border-radius: 8px;
  font-family: var(--dt-font-body);
  font-size: 1rem;
  background: var(--dt-white);
  color: var(--dt-text-primary);
  transition: border-color var(--dt-transition);
}
.dt-form input:focus,
.dt-form select:focus,
.dt-form textarea:focus {
  outline: none;
  border-color: var(--dt-brand-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.dt-form textarea { min-height: 120px; resize: vertical; }

.dt-form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--dt-text-secondary);
}
.dt-form-check input { width: auto; margin-top: 0.25rem; }

.dt-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.dt-flash {
  padding: 0.875rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}
.dt-flash-success { background: rgba(22, 163, 74, 0.1); color: var(--dt-success); border: 1px solid rgba(22, 163, 74, 0.2); }
.dt-flash-error { background: rgba(220, 38, 38, 0.1); color: var(--dt-error); border: 1px solid rgba(220, 38, 38, 0.2); }

@media (max-width: 640px) {
  .dt-form-grid { grid-template-columns: 1fr; }
}

/* ---- Footer ---- */
.dt-footer {
  background: var(--dt-bg-dark);
  color: var(--dt-text-dark-muted);
  padding: 3rem 0 1.5rem;
}
.dt-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.dt-footer-brand .dt-logo-name { font-size: 1.125rem; }
.dt-footer-brand p { font-size: 0.875rem; max-width: 32ch; margin-top: 0.75rem; }
.dt-footer h4 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dt-white);
  margin-bottom: 1rem;
}
.dt-footer ul { list-style: none; padding: 0; margin: 0; }
.dt-footer li { margin-bottom: 0.5rem; }
.dt-footer a { color: var(--dt-text-dark-muted); text-decoration: none; font-size: 0.875rem; }
.dt-footer a:hover { color: var(--dt-white); text-decoration: none; }

.dt-footer-bottom {
  border-top: 1px solid rgba(203, 213, 225, 0.1);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8125rem;
}
.dt-footer-legal { max-width: 48ch; }

@media (max-width: 900px) {
  .dt-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .dt-footer-grid { grid-template-columns: 1fr; }
}

/* ---- WhatsApp float ---- */
.dt-wa-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: var(--dt-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform var(--dt-transition);
}
.dt-wa-float:hover { transform: scale(1.05); color: var(--dt-white); text-decoration: none; }
.dt-wa-float svg { width: 28px; height: 28px; fill: currentColor; }

/* ---- Page hero (inner pages) ---- */
.dt-page-hero {
  background: var(--dt-bg-dark);
  color: var(--dt-white);
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}
.dt-page-hero h1 { margin-bottom: 0.75rem; }
.dt-page-hero p { color: var(--dt-text-dark-muted); max-width: 60ch; }

.dt-breadcrumbs {
  font-size: 0.875rem;
  color: var(--dt-text-dark-muted);
  margin-bottom: 1rem;
}
.dt-breadcrumbs a { color: var(--dt-accent-cyan); }

/* ---- Service page ---- */
.dt-service-section { padding: 2.5rem 0; }
.dt-service-section:nth-child(even) { background: var(--dt-bg-light); }
.dt-faq details {
  border: 1px solid var(--dt-border);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  background: var(--dt-white);
}
.dt-faq summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.dt-faq summary::-webkit-details-marker { display: none; }
.dt-faq details[open] summary { border-bottom: 1px solid var(--dt-border); }
.dt-faq details p { padding: 1rem 1.25rem; margin: 0; color: var(--dt-text-secondary); }

/* ---- Insights ---- */
.dt-insight-card {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  padding: 1.5rem;
  transition: box-shadow var(--dt-transition);
}
.dt-insight-card:hover { box-shadow: var(--dt-shadow); }
.dt-insight-meta { font-size: 0.8125rem; color: var(--dt-text-secondary); margin-bottom: 0.5rem; }
.dt-article-content { max-width: 720px; margin-inline: auto; }
.dt-article-content h2 { margin-top: 2rem; }
.dt-article-content ul, .dt-article-content ol { margin-bottom: 1em; padding-left: 1.5rem; }
.dt-article-content li { margin-bottom: 0.5em; color: var(--dt-text-secondary); }

/* ---- Error pages ---- */
.dt-error-page {
  min-height: calc(100vh - var(--dt-header-h) - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1rem;
}
.dt-error-code {
  font-family: var(--dt-font-heading);
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 800;
  background: var(--dt-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* ---- Reveal animation ---- */
.dt-reveal {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: no-preference) {
  .dt-reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 400ms ease, transform 400ms ease;
  }
  .dt-reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ---- Industries ---- */
.dt-industry-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.dt-industry-tag {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}
.dt-disclaimer {
  font-size: 0.8125rem;
  color: var(--dt-text-secondary);
  margin-top: 1.5rem;
  font-style: italic;
}

/* ---- Pricing note ---- */
.dt-pricing-note {
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
  padding: 2rem;
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}
.dt-engagement-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1.5rem;
}
.dt-engagement-tag {
  background: var(--dt-bg-light);
  border: 1px solid var(--dt-border);
  border-radius: 999px;
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
}

/* Workflow visual + contact layout enhancements */
.dt-hero-visual { max-width: 520px; margin-inline: auto; }
.dt-workflow-visual {
  background: var(--dt-bg-dark-secondary);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: var(--dt-radius-lg);
  padding: 1.25rem;
  box-shadow: var(--dt-shadow-lg);
}
.dt-workflow-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dt-accent-cyan);
  margin-bottom: 0.75rem;
  font-weight: 600;
}
.dt-workflow-title {
  font-family: var(--dt-font-heading);
  font-size: 1rem;
  color: var(--dt-white);
  margin-bottom: 1rem;
}
.dt-workflow-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin-bottom: 1.25rem;
}
.dt-workflow-step {
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.28);
  color: var(--dt-text-dark-muted);
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
}
.dt-workflow-arrow { color: var(--dt-accent-cyan); font-size: 0.75rem; }
.dt-workflow-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.dt-workflow-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 8px;
  padding: 0.65rem;
  font-size: 0.6875rem;
  color: var(--dt-text-dark-muted);
  text-align: center;
}
.dt-contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.dt-contact-process {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--dt-white);
  border: 1px solid var(--dt-border);
  border-radius: var(--dt-radius);
}
.dt-contact-process ol { margin: 0; padding-left: 1.25rem; color: var(--dt-text-secondary); }
@media (max-width: 900px) {
  .dt-contact-layout { grid-template-columns: 1fr; }
  .dt-workflow-cards { grid-template-columns: repeat(2, 1fr); }
}