/*
 * OphieAI — Components
 * Buttons, cards, quote blocks, pricing, FAQ, modals, metrics, logo strips.
 */

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background var(--dur-instant) var(--ease-out),
    border-color var(--dur-instant) var(--ease-out),
    color var(--dur-instant) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

/* Primary — brand blue */
.btn-primary {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: white;
}

/* Secondary — outlined */
.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border-hover);
}

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

/* Ghost — text only */
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
  padding-inline: var(--space-3);
}

.btn-ghost:hover {
  color: var(--color-ink);
  background: var(--color-surface);
}

/* Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* Arrow link */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: gap var(--dur-fast) var(--ease-out), color var(--dur-fast);
}

.link-arrow:hover {
  gap: var(--space-3);
  color: var(--color-ink);
}

.link-arrow::after {
  content: '→';
}

/* ============================================
   OFFERING ROWS (Home & product pages)
   ============================================ */

.offering-list {
  border-top: 1px solid var(--color-border);
}

.offering-item {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-10);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-8);
  align-items: start;
}

.offering-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  margin-bottom: var(--space-4);
  line-height: var(--leading-snug);
}

.offering-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 55ch;
}

.offering-cta {
  flex-shrink: 0;
  margin-top: var(--space-1);
}

/* ============================================
   QUOTE CARDS
   ============================================ */

.quotes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.quote-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.quote-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 300;
  font-style: italic;
  line-height: var(--leading-snug);
  color: var(--color-ink);
  margin-bottom: var(--space-6);
}

.quote-attribution {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

.quote-attribution strong {
  display: block;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

/* ============================================
   LOGO STRIP
   ============================================ */

.logo-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  padding-block: var(--space-6);
}

.logo-strip-label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  flex-basis: 100%;
  margin-bottom: var(--space-2);
}

.logo-item {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-subtle);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  filter: grayscale(1);
  opacity: 0.4;
  transition: opacity var(--dur-fast);
}

.logo-item:hover {
  opacity: 0.7;
}

/* ============================================
   SERVICE BREAKDOWN (pricing rows)
   ============================================ */

.service-list {
  border-top: 1px solid var(--color-border);
}

.service-item {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-8);
}

.service-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-8);
  margin-bottom: var(--space-4);
}

.service-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
}

.service-price {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 400;
}

.service-price strong {
  color: var(--color-ink);
  font-weight: 500;
}

.service-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ============================================
   METRICS ROW
   ============================================ */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding-block: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.metric-item {}

.metric-value {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.metric-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
  max-width: 22ch;
}

/* ============================================
   SUCCESS STORY BLOCK
   ============================================ */

.success-story {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
}

.success-story-logo {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-bottom: var(--space-6);
}

.success-story-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 65ch;
  margin-bottom: var(--space-6);
}

.success-story-attribution {
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* ============================================
   PRICING TABLE
   ============================================ */

.pricing-table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pricing-row {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

.pricing-row:last-child {
  border-bottom: none;
}

.pricing-row:first-child {
  background: var(--color-surface);
}

.pricing-tier {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink);
}

.pricing-amount {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-ink);
  letter-spacing: var(--tracking-tight);
}

.pricing-amount span {
  font-size: var(--text-sm);
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-details {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

/* ============================================
   FAQ ACCORDION
   ============================================ */

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

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-6);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--color-ink);
  font-size: var(--text-base);
  font-weight: 500;
  font-family: var(--font-body);
  line-height: var(--leading-snug);
  transition: color var(--dur-fast);
}

.faq-trigger:hover {
  color: var(--color-accent);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  color: var(--color-text-muted);
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base);
}

.faq-icon::before {
  width: 12px;
  height: 1.5px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 1.5px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.is-open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-slow) var(--ease-out);
}

.faq-item.is-open .faq-body {
  grid-template-rows: 1fr;
}

.faq-body-inner {
  overflow: hidden;
}

.faq-answer {
  padding-bottom: var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 65ch;
}

/* ============================================
   CASE STUDY TILES (SmartDoc)
   ============================================ */

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.use-case-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition:
    border-color var(--dur-fast),
    transform var(--dur-fast) var(--ease-out);
}

.use-case-tile:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.use-case-image {
  aspect-ratio: 16/9;
  background: var(--color-surface-high);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

/* Placeholder shimmer for when screenshots aren't available */
.use-case-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--color-surface-high) 25%,
    oklch(20% 0.008 260) 50%,
    var(--color-surface-high) 75%
  );
  background-size: 200% 200%;
}

.use-case-body {
  padding: var(--space-6);
}

.use-case-title {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.use-case-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-4);
}

.use-case-link {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 500;
}

/* ============================================
   MODAL
   ============================================ */

.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: oklch(0% 0 0 / 0.8);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-backdrop.is-open {
  display: flex;
}

.modal-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 680px;
  max-height: 85dvh;
  overflow-y: auto;
  padding: var(--space-10);
  position: relative;
  animation: modal-in var(--dur-slow) var(--ease-out);
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-high);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 18px;
  line-height: 1;
  transition: color var(--dur-fast), background var(--dur-fast);
}

.modal-close:hover {
  color: var(--color-ink);
  background: var(--color-border);
}

.modal-customer {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-6);
}

.modal-body {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

.modal-body p + p {
  margin-top: var(--space-4);
}

.modal-metric {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  margin-top: var(--space-6);
}

.modal-metric-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-accent);
  white-space: nowrap;
}

.modal-metric-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

body.modal-open {
  overflow: hidden;
}

/* ============================================
   WORKFLOW STEPS (SmartTender)
   ============================================ */

.workflow-steps {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding-block: var(--space-8);
  scrollbar-width: none;
}

.workflow-steps::-webkit-scrollbar { display: none; }

.workflow-step {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.workflow-step-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 100px;
  transition: border-color var(--dur-fast), background var(--dur-fast);
}

.workflow-step-num {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
}

.workflow-step-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink);
}

.workflow-step-arrow {
  width: 32px;
  height: 1px;
  background: var(--color-border);
  position: relative;
  flex-shrink: 0;
}

.workflow-step-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  transform: rotate(45deg);
}

/* ============================================
   EMBEDDED PREVIEW
   ============================================ */

.embed-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.embed-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-high);
}

.embed-preview-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  font-weight: 500;
  text-transform: uppercase;
}

.embed-preview-body {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-size: var(--text-sm);
  font-style: italic;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
  text-align: center;
  padding-block: var(--space-3xl);
  border-top: 1px solid var(--color-border);
}

.cta-title {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 55ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

/* ============================================
   PARTNER LOGOS (About page)
   ============================================ */

.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-6);
}

.partner-logo {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

.partner-logo:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-muted);
}

/* ============================================
   TEAM CARDS (About page)
   ============================================ */

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.team-photo {
  aspect-ratio: 4/3;
  background: var(--color-surface-high);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-border);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-info {
  padding: var(--space-6);
}

.team-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.team-creds {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-4);
}

.team-linkedin {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
}

/* ============================================
   INSIGHTS / BLOG LIST
   ============================================ */

.insights-list {
  border-top: 1px solid var(--color-border);
}

.insight-item {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-8);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: start;
  text-decoration: none;
  transition: opacity var(--dur-fast);
}

.insight-item:hover {
  opacity: 0.75;
}

.insight-date {
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
  width: 90px;
  padding-top: 2px;
  flex-shrink: 0;
}

.insight-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-2);
}

.insight-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

/* ============================================
   LIQUID GLASS BUTTON
   Backdrop-filter blur + SVG displacement refraction +
   inset highlight rings. Used on hero CTAs and nav CTA.
   Requires <svg id="glass-filter"> to be present in the DOM
   (defined once per page that uses .btn-glass).
   ============================================ */

.btn-glass {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-7, 28px);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--color-ink);
  text-decoration: none;
  background: oklch(100% 0 0 / 0.06);
  border: none;
  border-radius: var(--radius-full);
  overflow: hidden;
  cursor: pointer;
  box-shadow:
    0 6px 16px oklch(0% 0 0 / 0.25),
    0 0 24px oklch(0% 0 0 / 0.12);
  transition:
    transform 500ms cubic-bezier(0.175, 0.885, 0.32, 1.6),
    background 250ms var(--ease-out);
}

/* Refraction / distortion layer — blurs and warps the content behind */
.btn-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  border-radius: inherit;
  backdrop-filter: blur(6px) saturate(1.5);
  -webkit-backdrop-filter: blur(6px) saturate(1.5);
  filter: url(#glass-distortion);
}

/* Highlight ring — inset box-shadow simulating light on glass */
.btn-glass::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  box-shadow:
    inset 1.5px 1.5px 0 0 oklch(100% 0 0 / 0.32),
    inset -1px -1px 1px 0 oklch(100% 0 0 / 0.18);
  pointer-events: none;
}

.btn-glass > * {
  position: relative;
  z-index: 1;
}

.btn-glass:hover {
  transform: scale(1.025);
  background: oklch(100% 0 0 / 0.1);
}

.btn-glass:active {
  transform: scale(0.98);
  transition-duration: 150ms;
}

/* Primary variant — accent-tinted glass */
.btn-glass-primary {
  background: oklch(60% 0.21 268 / 0.35);
  color: white;
}

.btn-glass-primary::after {
  box-shadow:
    inset 1.5px 1.5px 0 0 oklch(100% 0 0 / 0.35),
    inset -1px -1px 1px 0 oklch(100% 0 0 / 0.15),
    inset 0 0 0 1px oklch(60% 0.21 268 / 0.25);
}

.btn-glass-primary:hover {
  background: oklch(60% 0.21 268 / 0.45);
}

/* Large sizing for hero CTAs */
.btn-glass-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-base);
}

/* Hide the inline SVG that defines the distortion filter */
.glass-filter-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

/* ============================================
   SCROLL INDICATOR (hero scene 1)
   ============================================ */

.scroll-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}

.scroll-indicator-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-indicator-line::after {
  content: '';
  position: absolute;
  top: -40px;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--color-accent));
  animation: scroll-drip 2.4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes scroll-drip {
  0%   { transform: translateY(0); opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(80px); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-indicator-line::after { animation: none; }
}

/* ============================================
   PROGRESS RAIL (right edge of hero)
   ============================================ */

.progress-rail {
  position: absolute;
  top: 50%;
  right: var(--space-6);
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  z-index: 3;
}

.progress-rail-segment {
  width: 1px;
  height: 48px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
  transition: background var(--dur-base) var(--ease-out);
}

.progress-rail-segment::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 600ms var(--ease-out);
}

.progress-rail-segment.is-active::after {
  transform: scaleY(1);
}

/* ============================================
   JSON ARTIFACT CARD (proof slides)
   ============================================ */

.artifact-json {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--font-mono, ui-monospace, 'SF Mono', 'Cascadia Code', Menlo, monospace);
  font-size: var(--text-sm);
  line-height: 1.6;
  box-shadow: var(--shadow-md);
}

.artifact-json-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface-high);
  border-bottom: 1px solid var(--color-border);
}

.artifact-json-dots {
  display: flex;
  gap: 6px;
}

.artifact-json-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border-hover);
}

.artifact-json-title {
  margin-left: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
}

.artifact-json-body {
  padding: var(--space-6);
  color: var(--color-text-muted);
  overflow-x: auto;
  white-space: pre;
}

.artifact-json-key    { color: var(--color-text-subtle); }
.artifact-json-string { color: var(--color-accent); }
.artifact-json-number { color: oklch(80% 0.02 268); }
.artifact-json-bool   { color: oklch(72% 0.18 140); }
.artifact-json-punct  { color: var(--color-text-subtle); }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .progress-rail { display: none; }

  .artifact-json-body {
    padding: var(--space-4);
    font-size: var(--text-xs);
  }

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

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

  .use-case-grid {
    grid-template-columns: 1fr;
  }

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

  .pricing-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .pricing-details {
    grid-column: span 2;
  }

  .offering-item {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .service-header {
    flex-direction: column;
    gap: var(--space-1);
  }

  .workflow-steps {
    gap: 0;
  }

  .modal-box {
    padding: var(--space-6);
  }

  .insight-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .insight-date {
    width: auto;
  }
}

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