/* ==========================================================================
   JD Publishing — Core Design System & Stylesheet
   Minimal Editorial Direction: White canvas, navy text, rich blue accent
   ========================================================================== */

/* Design Tokens */
:root {
  --color-canvas: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-hover: #f1f5f9;
  
  --color-text-primary: #0a192f;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  
  --color-blue-accent: #0047bb;
  --color-blue-hover: #00358e;
  --color-blue-subtle: #eff6ff;
  --color-blue-border: #bfdbfe;
  
  --color-hairline: #e2e8f0;
  --color-hairline-strong: #cbd5e1;
  
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, -apple-system, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  
  --container-max: 1100px;
  --transition-speed: 0.2s;
  --focus-ring: 0 0 0 3px rgba(0, 71, 187, 0.2);
}

/* Preserve native hidden semantics despite component display rules. */
[hidden] { display: none !important; }
section[id], main[id] { scroll-margin-top: 6rem; }

@media (max-width: 380px) {
  .brand-logo { font-size: 1.05rem; }
  .nav-list { gap: 0.55rem; }
  .nav-link { font-size: 0.8125rem; }
}

/* CSS Reset & Defaults */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-canvas);
  color: var(--color-text-primary);
  font-family: var(--font-system);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

button, input, textarea {
  font: inherit;
}

/* Skip Navigation Link for Keyboard Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-blue-accent);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 4px;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition-speed) ease;
}

.skip-link:focus {
  top: 1rem;
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* Focus Management */
:focus-visible {
  outline: 2px solid var(--color-blue-accent);
  outline-offset: 3px;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 4vw, 2.5rem);
  padding-right: clamp(1.25rem, 4vw, 2.5rem);
}

/* Section Shared Utilities */
.section {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid var(--color-hairline);
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-blue-accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
}

.section-intro {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 640px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-hairline);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.brand-logo:hover {
  color: var(--color-blue-accent);
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: clamp(1rem, 3vw, 2rem);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.25rem;
  transition: color var(--transition-speed) ease;
  position: relative;
}

.nav-link:hover {
  color: var(--color-blue-accent);
}

.nav-link-contact {
  color: var(--color-blue-accent);
  font-weight: 600;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
  background-color: var(--color-canvas);
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-blue-accent);
  margin-bottom: 1.25rem;
}

.hero-heading {
  font-size: clamp(2.5rem, 5.8vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  max-width: 960px;
}

.hero-destination { white-space: nowrap; }

/* Rotator Slot with Strict Layout Stability */
.rotator-slot {
  display: inline-grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  align-items: baseline;
  vertical-align: baseline;
  position: relative;
  color: var(--color-blue-accent);
  border-bottom: 2px solid var(--color-blue-border);
  padding-bottom: 1px;
}

/* Invisible ghost of longest word anchors slot width perfectly */
.rotator-ghost {
  grid-area: 1 / 1;
  visibility: hidden;
  user-select: none;
  pointer-events: none;
}

.rotator-word {
  grid-area: 1 / 1;
  display: inline-block;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.24s cubic-bezier(0.16, 1, 0.3, 1), transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.rotator-word.is-animating-out {
  opacity: 0;
  transform: translateY(-8px);
}

.rotator-word.is-animating-in {
  opacity: 0;
  transform: translateY(8px);
}

/* One shared clock coordinates the headline and highlighted SVG route. */
.audience-path { stroke: var(--color-hairline-strong); stroke-width: 1.4; }
.audience-route text, .buyer-label {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  fill: var(--color-text-muted);
}
.audience-route circle { fill: var(--color-hairline-strong); }
.audience-route.is-active text { fill: var(--color-blue-accent); font-weight: 700; }
.audience-route.is-active circle { fill: var(--color-blue-accent); }
#active-route { stroke: var(--color-blue-accent); stroke-width: 2; }
.funnel-junction { fill: white; stroke: var(--color-blue-accent); stroke-width: 1.5; }
.buyer-ring { stroke: var(--color-blue-accent); stroke-opacity: 0.2; }
.buyer-node { fill: var(--color-blue-accent); }
.buyer-label { fill: var(--color-text-primary); font-weight: 700; }
#funnel-dot { fill: var(--color-blue-accent); stroke: white; stroke-width: 1.5; }

.hero-subheading {
  font-size: clamp(1.125rem, 2vw, 1.35rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 660px;
  margin-bottom: 2.25rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

/* Bespoke Funnel / Connection Motif */
.hero-motif-wrapper {
  width: 100%;
  max-width: 720px;
  border-top: 1px solid var(--color-hairline);
  padding-top: 2rem;
}

.hero-motif {
  width: 100%;
  height: auto;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.8125rem 1.625rem;
  border-radius: 4px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--color-blue-accent);
  color: #ffffff;
  border: 1px solid var(--color-blue-accent);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-blue-hover);
  border-color: var(--color-blue-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-hairline-strong);
}

.btn-secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text-secondary);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==========================================================================
   Services Section (Numbered Editorial Sequence)
   ========================================================================== */
.services-section {
  background-color: var(--color-canvas);
}

.services-list {
  list-style: none;
  border-bottom: 1px solid var(--color-hairline);
}

.service-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: baseline;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: clamp(1.75rem, 3.5vw, 2.5rem);
  padding-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
  border-top: 1px solid var(--color-hairline);
  transition: background-color var(--transition-speed) ease;
}

.service-item:hover {
  background-color: #fafbfd;
}

.service-number {
  font-family: var(--font-mono);
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--color-blue-accent);
  letter-spacing: 0.05em;
}

.service-name {
  font-size: clamp(1.25rem, 2.2vw, 1.625rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.service-text {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 720px;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  background-color: var(--color-canvas);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.team-card {
  display: flex;
  gap: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--color-hairline);
  border-radius: 4px;
  background-color: var(--color-canvas);
}

.team-portrait {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-blue-border);
  border-radius: 4px;
}

.team-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 3px;
}

.team-initial {
  font-family: var(--font-system);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-blue-accent);
}

.team-details {
  flex-grow: 1;
}

.team-name {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: 0.65rem;
}

.team-bio {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Contact Section & Form
   ========================================================================== */
.contact-section {
  background-color: var(--color-surface);
}

.contact-container {
  max-width: 780px;
}

.contact-form {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: 6px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

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

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.4rem;
}

.required-indicator {
  color: var(--color-blue-accent);
}

.optional-indicator {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline-strong);
  border-radius: 4px;
  transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-blue-accent);
  box-shadow: var(--focus-ring);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-action-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-hairline);
}

.form-status-region {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-hairline-strong);
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
}

.status-message {
  font-weight: 500;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-hairline);
  padding: 2.5rem 0;
  background-color: var(--color-canvas);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-back-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.footer-back-link:hover {
  color: var(--color-blue-accent);
}

/* ==========================================================================
   404 Page Specific Styles
   ========================================================================== */
.error-page-wrapper {
  min-height: calc(100vh - 4.5rem - 6rem);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
}

.error-card {
  max-width: 560px;
  text-align: left;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-blue-accent);
  line-height: 1;
  margin-bottom: 1rem;
}

.error-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
}

.error-desc {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

/* ==========================================================================
   Responsive Adaptations (360px Mobile, 768px Tablet, 1440px Desktop)
   ========================================================================== */
@media (max-width: 768px) {
  .team-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .service-item {
    grid-template-columns: 48px 1fr;
    gap: 1rem;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .brand-logo { font-size: 1.05rem; white-space: nowrap; }
  .nav-list { gap: 0.55rem; }
  .nav-link { font-size: 0.8125rem; }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .team-card {
    flex-direction: column;
    gap: 1rem;
  }
}

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

}