/* ==========================================
   Avicenna — Unified Stylesheet
   ========================================== */

/* --- Variables --- */
:root {
  /* Paper design tokens */
  --black: #0D0D0D;
  --white: #F7F5F2;
  --gray-100: #f0ede8;
  --gray-200: #e0ddd6;
  --gray-400: #8A8578;
  --gray-600: #5c5a54;
  --accent: #C54B3D;
  --accent-hover: #b04436;

  /* Layout */
  --container-max-wide: 1280px;
  --space-section: 100px;
  --space-section-x: 80px;
  --space-block: 56px;
  --radius-sm: 4px;
  --radius-md: 8px;
}

/* --- Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

strong {
  font-weight: 600;
}

/* --- Layout --- */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */
header {
  padding: 36px 0 20px;
  border-bottom: 1px solid var(--gray-200);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 40px;
  gap: 24px;
}

.logo {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  color: var(--black);
  text-decoration: none;
}

nav {
  display: flex;
  gap: 32px;
  align-items: center;
  flex-wrap: nowrap;
}

nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--black);
}

h1 {
  font-family: 'Instrument Serif', serif;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* --- Hero --- */
.hero {
  padding: 80px 0 60px;
}

.hero h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(42px, 8vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero h1 em {
  font-style: italic;
}

.hero .lead {
  font-size: 19px;
  color: var(--gray-600);
  max-width: 560px;
  margin-bottom: 24px;
}

.hero time {
  font-size: 14px;
  color: var(--gray-400);
}

.hero-inner {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.hero-inner > div:not(.highlight-panel):not(.cta-row):not(.case-meta) {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-inner h1 {
  margin: 0;
}

.hero-inner .lead {
  margin: 0;
}

/* Homepage hero overrides */
.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 500;
  transition: opacity 0.2s;
}

.hero-cta.secondary {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--gray-200);
}

.hero-cta:hover {
  opacity: 0.8;
}

.hero-intro {
  font-size: 19px;
  color: var(--gray-600);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Instrument Serif', serif;
  font-size: 32px;
  color: var(--black);
}

.stat-label {
  font-size: 14px;
  color: var(--gray-400);
  margin-top: 4px;
}

/* Eyebrow */
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

/* Case study hero */
.hero-case-study .hero-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.case-meta {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.case-meta-item {
  background: var(--gray-100);
  padding: 16px 20px;
  border-radius: 6px;
}

.case-meta-item span {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

.case-meta-item strong {
  display: block;
  margin-top: 4px;
  font-weight: 500;
}

/* --- CTA Buttons --- */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-note {
  margin-top: 10px;
  font-size: 14px;
  color: var(--gray-400);
}

.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 6px;
  background: var(--accent);
  color: var(--white);
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  font-size: inherit;
  font-family: inherit;
}

.primary-cta:hover {
  opacity: 0.8;
  color: var(--white);
}

.secondary-cta,
.ghost-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  color: var(--black);
  font-weight: 500;
  transition: background 0.2s;
}

.secondary-cta:hover,
.ghost-cta:hover {
  background: var(--gray-100);
}

/* --- Sections --- */
section {
  padding: 60px 0;
  border-top: 1px solid var(--gray-200);
}

.section-label,
.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.section-header {
  margin-bottom: 32px;
}

.section-header .section-lead {
  margin-top: 8px;
}

.section-lead {
  font-size: 17px;
  color: var(--gray-600);
  max-width: 560px;
}

section h2 {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  font-weight: 400;
  margin-bottom: 20px;
  line-height: 1.3;
}

section p {
  color: var(--gray-600);
  margin-bottom: 16px;
}

section p:last-child {
  margin-bottom: 0;
}

section a:not(.primary-cta):not(.secondary-cta):not(.ghost-cta):not(.hero-cta):not(.newsletter-link):not(.contact-link):not(.logo):not(.cta-bold):not(.btn-primary):not(.btn-secondary):not(.btn-outline-light):not(.service-link):not(.link-arrow):not(.nav-cta):not(.nav-logo):not(.footer-logo) {
  font-weight: 500;
  color: var(--accent);
}

section a:not(.primary-cta):not(.secondary-cta):not(.ghost-cta):not(.hero-cta):not(.newsletter-link):not(.contact-link):not(.logo):not(.cta-bold):not(.btn-primary):not(.btn-secondary):not(.btn-outline-light):not(.service-link):not(.link-arrow):not(.nav-cta):not(.nav-logo):not(.footer-logo):hover {
  text-decoration: underline;
}

/* --- Services (homepage) --- */
.services {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.service {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--gray-200);
}

.service:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.service h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.service p {
  font-size: 16px;
}

.service a {
  font-weight: 500;
  color: var(--accent);
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--gray-100);
  padding: 24px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.card h3 a {
  color: inherit;
}

.card p {
  margin: 0;
  color: var(--gray-600);
  font-size: 16px;
}

.card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--gray-600);
  font-size: 16px;
}

.pill {
  align-self: flex-start;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gray-200);
  color: var(--gray-600);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.card-footer {
  margin-top: auto;
}

.card-footer a {
  font-weight: 500;
  color: var(--accent);
}

.card-footer a:hover {
  text-decoration: underline;
}

/* --- Solutions Grid --- */
.solutions-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.solution-card {
  background: var(--gray-100);
  padding: 24px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.solution-card h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  font-weight: 400;
  margin: 0;
}

.solution-card p {
  margin: 0;
  color: var(--gray-600);
}

.solution-body {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
}

.solution-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--gray-600);
  font-size: 15px;
}

.list-label {
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--black);
}

/* --- Two Column --- */
.two-column {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.two-column ul,
.two-column ol {
  padding-left: 20px;
  color: var(--gray-600);
}

.two-column li {
  margin-bottom: 8px;
}

/* --- Highlight Panel --- */
.highlight-panel {
  background: var(--gray-100);
  padding: 24px;
  border-radius: 8px;
}

.highlight-panel h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px;
}

.highlight-panel ul,
.highlight-panel ol {
  margin: 0;
  padding-left: 20px;
  color: var(--gray-600);
}

.highlight-panel li {
  margin-bottom: 8px;
}

.highlight-panel p {
  margin: 4px 0 0;
  color: var(--gray-600);
}

/* --- Inline Diagrams --- */
.diagram-frame {
  background: linear-gradient(180deg, #f7f2e8 0%, var(--gray-100) 100%);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  overflow: hidden;
  animation: diagram-rise 480ms ease both;
}

.diagram-frame svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-frame svg text {
  font-family: 'DM Sans', sans-serif;
  fill: var(--black);
}

.diagram-frame .diagram-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.diagram-frame .diagram-label {
  font-size: 14px;
  font-weight: 600;
}

.diagram-frame .diagram-small {
  font-size: 12px;
  fill: var(--gray-600);
}

.diagram-frame .diagram-muted {
  fill: var(--gray-400);
}

.diagram-frame .diagram-metric {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
}

.diagram-caption {
  margin-top: 16px;
  font-size: 14px;
  color: var(--gray-600);
}

@keyframes diagram-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- FAQ --- */
.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 20px;
  background: var(--white);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
}

.faq-item p {
  margin: 0;
}

/* --- Lead Form --- */
.lead-form {
  display: grid;
  gap: 18px;
}

.lead-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.lead-form label {
  display: grid;
  gap: 8px;
}

.lead-form label > span {
  font-size: 13px;
  color: var(--gray-600);
  font-weight: 600;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--black);
  font: inherit;
  padding: 10px 12px;
}

.lead-form textarea {
  resize: vertical;
  min-height: 132px;
}

.lead-form input:focus-visible,
.lead-form select:focus-visible,
.lead-form textarea:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 1px;
}

.lead-form button[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-status {
  margin-top: 4px;
  font-size: 14px;
  color: var(--gray-600);
}

.form-status.success {
  color: #115e36;
}

.form-status.error {
  color: #9f1239;
}

/* --- Tag List --- */
.tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--gray-200);
  font-size: 14px;
  color: var(--gray-600);
}

/* --- News --- */
.news-list {
  display: grid;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-200);
  display: grid;
  gap: 8px;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item time {
  font-size: 13px;
  color: var(--gray-400);
  letter-spacing: 0.05em;
}

.news-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.news-item h3 a {
  color: inherit;
}

.news-item h3 a:hover {
  text-decoration: underline;
}

.news-item p {
  margin: 0;
  color: var(--gray-600);
  font-size: 16px;
}

/* --- Approach (homepage) --- */
.approach-highlight {
  background: var(--gray-100);
  padding: 32px;
  border-radius: 8px;
  margin-top: 24px;
}

.approach-highlight p {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  color: var(--black);
  line-height: 1.5;
  font-style: italic;
}

/* --- Industries (homepage) --- */
.industries-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.industry-tag {
  background: var(--gray-100);
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 15px;
  color: var(--gray-600);
}

/* --- Newsletter Section --- */
.newsletter-section {
  background: var(--black);
  color: var(--white);
  margin: 0 -24px;
  padding: 60px 24px;
  border-top: none;
}

.newsletter-section .section-label {
  color: var(--gray-400);
}

.newsletter-section h2 {
  color: var(--white);
}

.newsletter-section p {
  color: var(--gray-400);
}

.newsletter-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  margin-top: 20px;
  padding: 12px 24px;
  border: 1px solid var(--gray-600);
  border-radius: 6px;
  transition: all 0.2s;
}

.newsletter-link:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.newsletter-link svg {
  width: 16px;
  height: 16px;
}

/* --- Contact (homepage) --- */
.contact-section {
  padding: 80px 0;
}

.contact-section h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--black);
  text-decoration: none;
  font-size: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.2s;
}

.contact-link:hover {
  padding-left: 8px;
}

.contact-link svg {
  width: 20px;
  height: 20px;
  color: var(--gray-400);
}

/* --- Case Study --- */
.case-overview-inner {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

.case-copy p {
  margin: 0 0 16px;
}

.case-copy p:last-child {
  margin-bottom: 0;
}

.case-aside h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px;
}

.case-aside .tag-list {
  margin-top: 12px;
}

.results-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.result-card {
  background: var(--gray-100);
  padding: 24px;
  border-radius: 8px;
  text-align: center;
}

.result-card span {
  display: block;
  font-family: 'Instrument Serif', serif;
  font-size: clamp(28px, 4vw, 36px);
  margin-bottom: 8px;
}

.result-card p {
  margin: 0;
  color: var(--gray-600);
}

/* --- Testimonial --- */
.case-testimonial .testimonial-block {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.testimonial-block {
  background: var(--gray-100);
  padding: 32px;
  border-radius: 8px;
}

.testimonial-quote {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 400;
  line-height: 1.4;
  margin: 0 0 16px;
  color: var(--black);
}

.testimonial-attribution {
  margin: 0;
  font-weight: 500;
  color: var(--black);
  font-size: 15px;
}

/* --- Design Demo --- */
.design-demo {
  display: grid;
  gap: 24px;
  padding: 24px;
  background: var(--gray-100);
  border-radius: 8px;
}

.design-demo__controls {
  display: grid;
  gap: 16px;
}

.design-demo__controls label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
}

.design-demo__controls input[type="file"] {
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px dashed var(--gray-200);
  background: var(--white);
  font: inherit;
}

.design-demo__hint {
  margin: 0;
  color: var(--gray-600);
}

.design-demo__sample-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.design-demo__sample-row button {
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--black);
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
  font: inherit;
  transition: background 0.2s;
}

.design-demo__sample-row button:hover {
  background: var(--gray-100);
}

.design-demo__viewport {
  --pos: 50%;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: var(--gray-200);
  transition: opacity 0.2s;
}

.design-demo__viewport.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.design-demo__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.design-demo__image--after {
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}

.design-demo__divider {
  position: absolute;
  inset: 0;
  left: calc(var(--pos) - 1px);
  width: 2px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
  pointer-events: none;
}

.design-demo__range {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: col-resize;
}

.design-demo__viewport:has(.design-demo__range:focus-visible) .design-demo__divider {
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.3);
}

.design-demo__footnote {
  margin: 0;
  color: var(--gray-600);
  font-size: 15px;
}

/* --- Timeline Page --- */
.timeline-page {
  background:
    radial-gradient(1400px 520px at 100% 0%, rgba(0, 0, 0, 0.035), transparent 70%),
    var(--white);
}

.timeline-hero {
  border-top: none;
  padding-bottom: 44px;
}

.timeline-hero h1 {
  max-width: 740px;
}

.timeline-kicker {
  margin-bottom: 14px;
}

.timeline-metrics {
  margin-top: 36px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.timeline-metric {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 16px 18px;
  display: grid;
  gap: 6px;
}

.timeline-metric-label {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-400);
}

.timeline-metric-value {
  margin: 0;
  color: var(--black);
  font-family: 'Instrument Serif', serif;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.1;
}

.timeline-controls {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.timeline-controls label {
  display: grid;
  gap: 8px;
}

.timeline-controls label span {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--gray-400);
}

.timeline-controls input,
.timeline-controls select {
  width: 100%;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background: var(--white);
  color: var(--black);
  padding: 10px 12px;
  font: inherit;
}

.timeline-controls input:focus-visible,
.timeline-controls select:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 1px;
}

.timeline-results {
  margin-top: 16px;
  color: var(--gray-600);
  font-size: 15px;
}

.timeline-list {
  margin-top: 20px;
}

.timeline-month {
  position: relative;
  padding-left: 26px;
  margin-bottom: 36px;
}

.timeline-month:last-child {
  margin-bottom: 0;
}

.timeline-month::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  bottom: 2px;
  width: 1px;
  background: var(--gray-200);
}

.timeline-month-heading {
  position: sticky;
  top: 8px;
  z-index: 2;
  display: inline-block;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  padding: 6px 12px;
  margin: 0 0 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--gray-600);
}

.timeline-month-list {
  display: grid;
  gap: 12px;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 14px;
}

.timeline-item-marker {
  position: relative;
  margin-top: 14px;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 2px solid var(--black);
  background: var(--white);
  z-index: 1;
}

.timeline-item-body {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 14px 16px;
  display: grid;
  gap: 8px;
}

.timeline-item.is-skipped .timeline-item-body {
  opacity: 0.72;
}

.timeline-item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-600);
}

.timeline-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  padding: 3px 9px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 600;
}

.timeline-chip-muted {
  background: transparent;
  border-style: dashed;
}

.timeline-item-headline {
  margin: 0;
  color: var(--black);
  font-size: 17px;
  line-height: 1.4;
  text-wrap: pretty;
}

a.timeline-item-headline {
  font-weight: 600;
}

a.timeline-item-headline:hover {
  text-decoration: underline;
}

.timeline-item-detail {
  margin: 8px 0 0;
  color: var(--gray-600);
  font-size: 14px;
  line-height: 1.5;
}

.timeline-status {
  margin: 8px 0;
  color: var(--gray-600);
}

.timeline-load-more {
  margin-top: 20px;
}

/* --- Footer --- */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--gray-200);
}

footer p {
  font-size: 14px;
  color: var(--gray-400);
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Animations --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1,
.hero-intro,
.hero-stats {
  animation: fadeUp 0.6s ease-out forwards;
}

.hero-intro {
  animation-delay: 0.1s;
}

.hero-stats {
  animation-delay: 0.2s;
}

/* ==========================================
   Editorial Design System
   Homepage-first, -editorial suffix for safety
   ========================================== */

/* --- Editorial Container --- */
.container-editorial {
  max-width: var(--container-max-wide);
  margin: 0 auto;
  padding: 0 40px;
}

/* --- Editorial Typography --- */
.headline-display {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(3rem, 8vw, var(--text-7xl));
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.headline-display em {
  font-style: italic;
}

.text-large {
  font-size: 19px;
  line-height: 1.6;
  color: var(--gray-600);
}

.eyebrow-editorial {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  margin-bottom: 20px;
}

/* --- Editorial CTA --- */
.cta-bold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  background: var(--black);
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.cta-bold:hover {
  background: var(--gray-600);
  color: var(--white);
}

.cta-bold:active {
  transform: scale(0.98);
}

/* --- Editorial Hero --- */
.hero-editorial {
  padding: 100px 0 var(--space-section);
  border-bottom: none;
}

.hero-editorial-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--grid-gap-lg);
  align-items: start;
}

.hero-editorial-content {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero-editorial-content .headline-display {
  margin: 0;
}

.hero-editorial-content .text-large {
  max-width: 520px;
}

.hero-editorial-proof {
  padding: 40px;
  background: var(--gray-100);
  border-radius: 2px;
  margin-top: 20px;
}

.proof-stats {
  display: grid;
  gap: 32px;
}

.proof-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.proof-stat-value {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  color: var(--black);
  line-height: 1.1;
}

.proof-stat-label {
  font-size: 14px;
  color: var(--gray-400);
}

/* --- Editorial Sections --- */
.section-editorial {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--gray-200);
}

.section-editorial-header {
  margin-bottom: var(--space-block);
}

.section-editorial-header h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  line-height: 1.2;
  margin: 0;
}

/* --- Editorial Services (numbered) --- */
.services-editorial {
  display: grid;
  gap: 0;
}

.service-editorial {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  padding: 40px 0;
  border-bottom: 1px solid var(--gray-200);
}

.service-editorial:last-child {
  border-bottom: none;
}

.service-number {
  font-family: 'Instrument Serif', serif;
  font-size: 32px;
  color: var(--gray-200);
  line-height: 1;
}

.service-editorial-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--black);
}

.service-editorial-content p {
  margin: 0;
  color: var(--gray-600);
  font-size: 16px;
  max-width: 540px;
}

/* --- Pullquote Editorial --- */
.pullquote-editorial {
  background: var(--black);
  color: var(--white);
  margin: 0;
  padding: var(--space-section) 0;
  border-top: none;
}

.pullquote-editorial .container-editorial {
  max-width: 900px;
}

.pullquote-text {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  line-height: 1.35;
  text-align: center;
  margin: 0;
}

.pullquote-attribution {
  text-align: center;
  margin-top: 28px;
  font-size: 14px;
  color: var(--gray-400);
}

/* --- Industries Editorial --- */
.industries-editorial {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.industry-tag-editorial {
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 14px 24px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  transition: background 0.2s, border-color 0.2s;
}

.industry-tag-editorial:hover {
  background: var(--gray-100);
  border-color: var(--gray-400);
}

/* --- Products Editorial --- */
.products-editorial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.product-card-editorial {
  background: var(--gray-100);
  padding: 36px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.product-card-editorial h3 {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  font-weight: 400;
  margin: 0;
}

.product-card-editorial p {
  margin: 0;
  color: var(--gray-600);
  font-size: 16px;
}

.product-card-editorial a {
  font-weight: 600;
  color: var(--black);
  margin-top: auto;
}

.product-card-editorial a:hover {
  text-decoration: underline;
}

/* --- Contact Editorial --- */
.contact-editorial {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--gray-200);
}

.contact-editorial h2 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 400;
  margin: 0 0 20px;
  line-height: 1.1;
}

.contact-editorial > p {
  font-size: 18px;
  color: var(--gray-600);
  margin-bottom: 40px;
}

/* --- Newsletter Editorial --- */
.newsletter-editorial {
  background: var(--black);
  color: var(--white);
  padding: var(--space-section) 0;
  border-top: none;
}

.newsletter-editorial .section-label {
  color: var(--gray-400);
}

.newsletter-editorial h2 {
  color: var(--white);
  font-family: 'Instrument Serif', serif;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  margin: 0 0 12px;
}

.newsletter-editorial p {
  color: var(--gray-400);
  margin: 0 0 28px;
}

/* --- Tablet Breakpoint (900px) --- */
@media (max-width: 900px) {
  .container-editorial {
    padding: 0 32px;
  }

  .hero-editorial {
    padding: 80px 0 100px;
  }

  .hero-editorial-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-editorial-proof {
    margin-top: 0;
  }

  .proof-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-editorial {
    padding: 80px 0;
  }

  .service-editorial {
    grid-template-columns: 48px 1fr;
  }

  .products-editorial-grid {
    grid-template-columns: 1fr;
  }

  .pullquote-text {
    text-align: left;
  }

  .pullquote-attribution {
    text-align: left;
  }
}

/* --- Mobile --- */
@media (max-width: 600px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  nav {
    width: 100%;
    gap: 12px 20px;
    flex-wrap: wrap;
  }

  .hero {
    padding: 60px 0 40px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .contact-section h2 {
    font-size: 28px;
  }

  .cards-grid,
  .solutions-grid,
  .results-grid {
    grid-template-columns: 1fr;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .solution-body {
    grid-template-columns: 1fr;
  }

  .case-meta {
    flex-direction: column;
  }

  .design-demo__sample-row {
    flex-direction: column;
  }

  .timeline-controls {
    grid-template-columns: 1fr;
  }

  .timeline-month {
    padding-left: 22px;
  }

  .timeline-month-heading {
    top: 4px;
  }

  .timeline-item {
    grid-template-columns: 12px 1fr;
    gap: 10px;
  }

  .timeline-item-marker {
    width: 10px;
    height: 10px;
    margin-top: 16px;
  }

  .timeline-item-body {
    padding: 12px 13px;
  }

  /* Editorial mobile */
  .container-editorial {
    padding: 0 24px;
  }

  .hero-editorial {
    padding: 60px 0 80px;
  }

  .hero-editorial-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-editorial-proof {
    padding: 28px;
  }

  .proof-stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-editorial {
    padding: 60px 0;
  }

  .section-editorial-header {
    margin-bottom: 40px;
  }

  .service-editorial {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 32px 0;
  }

  .service-number {
    font-size: 24px;
  }

  .pullquote-editorial {
    padding: 60px 0;
  }

  .industries-editorial {
    gap: 10px;
  }

  .industry-tag-editorial {
    padding: 12px 18px;
    font-size: 14px;
  }

  .contact-editorial {
    padding: 60px 0;
  }

  .newsletter-editorial {
    padding: 60px 0;
  }

  .diagram-frame {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .diagram-frame {
    animation: none;
  }
}

/* ==========================================
   Homepage — Paper Design System
   ========================================== */

/* --- Page Home --- */
.page-home {
  background: var(--white);
}

/* --- Site Wrapper --- */
.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Nav Header --- */
.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.nav-logo {
  font-family: system-ui, sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--black);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  font-size: 15px;
  color: var(--gray-600);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--black);
}

.nav-cta {
  background: var(--black);
  color: #fff !important;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.nav-cta:hover {
  background: #1a1a1a;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--black);
}

@media (max-width: 768px) {
  .nav-mobile-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px var(--space-section-x);
    flex-direction: column;
    gap: 16px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }

  .nav-links-open {
    display: flex;
  }

  .nav-header {
    position: relative;
  }
}

/* --- Hero Section --- */
.hero-section {
  padding: 80px var(--space-section-x) 100px;
  max-width: 1440px;
  margin: 0 auto;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: system-ui, sans-serif;
  font-size: clamp(48px, 6vw, 86px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--black);
  margin: 0 0 32px;
}

.hero-headline .accent {
  color: var(--accent);
}

.hero-subhead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--gray-600);
  max-width: 640px;
  margin: 0 0 40px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 18px 36px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 18px 36px;
  background: transparent;
  color: var(--black);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  background: var(--gray-100);
  border-color: var(--gray-400);
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  padding: 18px 36px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
  transition: background 0.2s, border-color 0.2s;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}

/* --- Method Section (Dark) --- */
.method-section {
  background: var(--black);
  color: #fff;
  padding: var(--space-section) var(--space-section-x);
}

.method-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.method-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 80px;
  margin-bottom: var(--space-block);
}

.method-title-group {
  flex-shrink: 0;
}

.method-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.method-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0;
}

.method-desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-400);
  max-width: 420px;
}

.case-studies-method-header {
  display: block;
}

.case-studies-method-header .method-title-group {
  margin-bottom: 20px;
}

.case-studies-method-header .method-desc {
  max-width: 760px;
}

.method-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.method-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 32px;
}

.method-num {
  font-size: 18px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 16px;
}

.method-item-text {
  font-size: 15px;
  line-height: 1.5;
  color: var(--gray-400);
  margin: 0;
}

/* --- Services Section --- */
.services-section {
  padding: var(--space-section) var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
}

.services-header {
  max-width: 600px;
  margin-bottom: var(--space-block);
}

.services-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.services-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.service-icon-1 { background: var(--accent); }
.service-icon-2 { background: var(--black); }
.service-icon-3 { background: var(--gray-400); }

.service-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
  color: var(--black);
}

.service-card p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gray-600);
  margin: 0;
}

.service-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  margin-top: auto;
}

.service-link:hover {
  text-decoration: underline;
}

/* --- Case Study Section --- */
.case-section {
  background: linear-gradient(135deg, #c85a47 0%, #a84a3a 100%);
  color: #fff;
  padding: var(--space-section) var(--space-section-x);
}

.case-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 80px;
}

.case-content {
  flex: 1;
  max-width: 700px;
}

.case-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}

.case-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.case-desc {
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255,255,255,0.85);
  margin: 0 0 32px;
}

.case-stats {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-stat {
  text-align: right;
}

.case-stat-value {
  font-family: system-ui, sans-serif;
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #fff;
}

.case-stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-top: 8px;
}

/* --- Case Studies Library --- */
.case-library-section {
  padding: var(--space-section) var(--space-section-x);
}

.case-library-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.case-library-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.case-study-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-height: 100%;
}

.case-study-card-header {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-study-kicker {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.case-study-card h3 {
  font-size: 28px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.case-study-summary {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-600);
}

.case-study-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-study-metric {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
}

.case-study-metric span {
  display: block;
  font-size: 24px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--black);
  margin-bottom: 10px;
}

.case-study-metric p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--gray-600);
  margin: 0;
}

.case-study-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.case-study-tags span {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  background: var(--white);
  font-size: 13px;
  color: var(--gray-600);
}

.case-study-actions {
  margin-top: auto;
  padding-top: 4px;
}

/* --- Case Study Detail --- */
.case-study-hero-section {
  padding-bottom: 72px;
}

.case-detail-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.case-detail-meta-card {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 24px;
}

.case-detail-meta-card span {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 10px;
}

.case-detail-meta-card strong {
  display: block;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--black);
}

.case-detail-story-section {
  padding: var(--space-section) var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
}

.case-detail-story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.9fr);
  gap: 40px;
  align-items: start;
}

.case-detail-story-header {
  margin-bottom: 32px;
}

.case-detail-story-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.case-detail-story-copy p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--gray-600);
  margin: 0 0 18px;
  max-width: 760px;
}

.case-detail-story-copy p:last-child {
  margin-bottom: 0;
}

.case-detail-sidecard {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: 100px;
}

.case-detail-sidecard h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  margin: 0 0 18px;
}

.case-detail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.case-detail-list li {
  padding-top: 14px;
  border-top: 1px solid var(--gray-200);
  font-size: 15px;
  line-height: 1.6;
  color: var(--gray-600);
}

.case-detail-list li:first-child {
  padding-top: 0;
  border-top: none;
}

/* --- Case Stats Bar --- */
.case-stats-bar {
  background: var(--black);
  padding: 48px var(--space-section-x);
}

.case-stats-bar-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 80px;
}

.case-stats-bar-item {
  text-align: center;
}

.case-stats-bar-value {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  color: var(--white);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.case-stats-bar-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.case-detail-testimonial-section {
  padding: var(--space-section) var(--space-section-x);
}

.case-detail-testimonial-inner {
  max-width: 920px;
  margin: 0 auto;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 44px;
  text-align: center;
}

/* --- Learn Guides Section --- */
.learn-guides-section {
  padding: 0 var(--space-section-x) var(--space-section);
  max-width: 1200px;
  margin: 0 auto;
}

.learn-guides-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.learn-guide-featured {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 48px;
}

.learn-guide-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(197, 75, 61, 0.1);
  padding: 6px 12px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.learn-guide-featured h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0 0 16px;
}

.learn-guide-featured h2 a {
  color: inherit;
  text-decoration: none;
}

.learn-guide-featured h2 a:hover {
  color: var(--accent);
}

.learn-guide-featured p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--gray-600);
  margin: 0 0 24px;
  max-width: 720px;
}

.learn-guides-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.learn-guide-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.learn-guide-card h3 {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--black);
  margin: 0 0 12px;
}

.learn-guide-card h3 a {
  color: inherit;
  text-decoration: none;
}

.learn-guide-card h3 a:hover {
  color: var(--accent);
}

.learn-guide-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--gray-600);
  margin: 0 0 20px;
  flex-grow: 1;
}

.learn-guide-card .service-link {
  margin-top: auto;
}

/* --- Why Us Section --- */
.why-section {
  padding: var(--space-section) var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
}

.why-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: start;
}

.why-header {
  position: sticky;
  top: 100px;
}

.why-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.why-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.why-item {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.why-num {
  font-family: system-ui, sans-serif;
  font-size: 24px;
  font-weight: 500;
  color: var(--accent);
  flex-shrink: 0;
  width: 40px;
}

.why-item-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--black);
}

.why-item-content p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gray-600);
  margin: 0;
}

/* --- Insights Section --- */
.insights-section {
  padding: var(--space-section) var(--space-section-x);
  background: var(--gray-100);
}

.insights-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.insights-header {
  margin-bottom: var(--space-block);
}

.insights-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.insights-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.insight-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.insight-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.insight-card h3 a {
  color: var(--black);
  text-decoration: none;
}

.insight-card h3 a:hover {
  text-decoration: underline;
}

.insight-card p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--gray-600);
  margin: 0;
}

.insights-footer {
  margin-top: 40px;
}

.link-arrow {
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
}

.link-arrow:hover {
  text-decoration: underline;
}

/* --- Timeline Section --- */
.timeline-section {
  padding: var(--space-section) var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
}

.timeline-header {
  margin-bottom: var(--space-block);
}

.timeline-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.timeline-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.timeline-card {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 24px;
}

.timeline-card h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--black);
}

.timeline-card h3 a {
  color: inherit;
  text-decoration: none;
}

.timeline-card h3 a:hover {
  text-decoration: underline;
}

.timeline-card p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--gray-600);
  margin: 0;
}

.timeline-footer {
  margin-top: 32px;
}

/* --- FAQ Section --- */
.faq-section {
  padding: var(--space-section) var(--space-section-x);
  max-width: 1440px;
  margin: 0 auto;
}

.faq-inner {
  max-width: 800px;
}

.faq-header {
  margin-bottom: var(--space-block);
}

.faq-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.faq-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
  margin: 0;
}

.faq-section .faq-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq-section .faq-item {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
}

.faq-section .faq-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--black);
}

.faq-section .faq-item p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--gray-600);
  margin: 0;
}

/* --- CTA Section --- */
.cta-section {
  padding: 120px var(--space-section-x);
  background: var(--gray-100);
  text-align: center;
}

.cta-inner {
  max-width: 800px;
  margin: 0 auto;
}

.cta-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.cta-title {
  font-family: system-ui, sans-serif;
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--black);
  margin: 0 0 20px;
}

.cta-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--gray-600);
  margin: 0 0 40px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Footer --- */
.site-footer {
  padding: 40px var(--space-section-x);
  border-top: 1px solid var(--gray-200);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--black);
  text-decoration: none;
}

.footer-copy {
  font-size: 14px;
  color: var(--gray-400);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  font-size: 14px;
  color: var(--gray-600);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--black);
}

/* --- Homepage Responsive --- */
@media (max-width: 1024px) {
  .method-header {
    flex-direction: column;
    gap: 24px;
  }

  .method-items {
    grid-template-columns: 1fr;
  }

  .services-grid,
  .insights-grid,
  .timeline-grid,
  .case-library-grid,
  .case-detail-meta-grid {
    grid-template-columns: 1fr;
  }

  .case-inner {
    flex-direction: column;
    gap: 48px;
  }

  .case-stats {
    flex-direction: row;
    gap: 48px;
  }

  .case-stat {
    text-align: left;
  }

  .why-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .why-header {
    position: static;
  }

  .case-detail-sidecard {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 72px;
    --space-section-x: 24px;
  }

  .nav-header {
    padding: 24px var(--space-section-x);
  }

  .nav-links {
    display: none;
  }

  .hero-section {
    padding: 60px var(--space-section-x) 80px;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary,
  .btn-outline-light {
    width: 100%;
    justify-content: center;
  }

  .case-stats {
    flex-direction: column;
    gap: 24px;
  }

  .case-stats-bar-inner {
    flex-direction: column;
    gap: 32px;
  }

  .case-stats-bar-value {
    font-size: 40px;
  }

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

  .case-detail-testimonial-inner {
    padding: 32px 24px;
  }

  .why-item {
    flex-direction: column;
    gap: 12px;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .footer-inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .learn-guide-featured {
    padding: 32px 24px;
  }

  .learn-guides-grid {
    grid-template-columns: 1fr;
  }

  .learn-guide-card {
    padding: 24px;
  }
}