/* =============================================================
   CASE-STUDY.CSS — Case study page layout and components
   ============================================================= */

/* -------------------------------------------------------------
   Sticky nav — case study pages only
   ------------------------------------------------------------- */
.page .nav {
  position: sticky;
  top: 16px;
  z-index: 100;
}

/* -------------------------------------------------------------
   Back link — sits above the bento grid
   ------------------------------------------------------------- */
.cs-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  padding: 0 4px;
}

.cs-back:hover {
  color: var(--color-text-primary);
}

/* -------------------------------------------------------------
   Bento grid — 2-column card grid matching home/work page style
   ------------------------------------------------------------- */
.cs-bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* White card — base for every bento cell */
.cs-bento-card {
  background: #ffffff;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--space-7) var(--space-7) var(--space-7);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.cs-bento-card--full {
  grid-column: 1 / -1;
}

/* Tighter padding variant for image-heavy cards */
.cs-bento-card--flush {
  padding: var(--space-6);
}

/* Zero padding — card hugs its content, corners clip the image */
.cs-bento-card--bare {
  padding: 0;
  overflow: hidden;
}

/* -------------------------------------------------------------
   Card header — label + title inside each card
   ------------------------------------------------------------- */
.cs-card-label {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.cs-card-title {
  font-family: var(--font-accent);
  font-size: var(--scale-6);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.15;
}

.cs-card-body {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-primary);
  line-height: 1.75;
}

.cs-card-sources {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: auto;
  padding-top: 12px;
}

.cs-card-sources a {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 400;
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition-fast);
}

.cs-card-sources a:hover {
  color: var(--color-text-primary);
}

/* -------------------------------------------------------------
   Hero card — split text left / image right
   ------------------------------------------------------------- */
.cs-hero-card {
  flex-direction: row !important;
  align-items: flex-start !important;
  gap: var(--space-7) !important;
}

.cs-hero-card__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

.cs-hero-card__image {
  flex-shrink: 0;
  width: 420px;
  display: block;
  align-self: center;
}

div.cs-hero-card__image {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  width: auto;
  overflow: hidden;
}

div.cs-hero-card__image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  display: block;
}

/* -------------------------------------------------------------
   Hero card internals
   ------------------------------------------------------------- */
.cs-hero__eyebrow {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cs-hero__title {
  font-family: var(--font-accent);
  font-size: var(--scale-8);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.05;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cs-hero__title-link {
  text-decoration: none;
  color: inherit;
}

.cs-hero__title-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  align-self: flex-end;
  color: var(--color-text-muted);
  transition: color 200ms ease, transform 200ms ease;
}

.cs-hero__title-link:hover .cs-hero__title-icon {
  color: var(--color-text-primary);
  transform: translate(2px, -2px);
}

.cs-hero__meta {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.cs-hero__description {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-primary);
  line-height: 1.75;
  max-width: 700px;
}

.cs-hero__details {
  display: flex;
  gap: var(--space-6);
}

.cs-hero__detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cs-hero__detail-label {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.cs-hero__detail-value {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 500;
  color: var(--color-text-primary);
}

.cs-hero__tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
}

.cs-tool-tag {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 700;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 4px 12px;
  letter-spacing: 0.04em;
}

/* -------------------------------------------------------------
   Sub-section heading within a card
   ------------------------------------------------------------- */
.cs-subsection-title {
  font-family: var(--font-accent);
  font-size: var(--scale-4);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-2);
}

/* -------------------------------------------------------------
   Card internal split — two columns inside a single bento card
   ------------------------------------------------------------- */
.cs-card-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.cs-card-split__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding-right: var(--space-7);
}

.cs-card-split__col + .cs-card-split__col {
  padding-right: 0;
  padding-left: var(--space-7);
  border-left: 1px solid var(--color-border);
}

/* -------------------------------------------------------------
   Feature / characteristic cards
   ------------------------------------------------------------- */
.cs-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cs-cards--two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  align-items: start;
}

.cs-item-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4) var(--space-5);
}

.cs-item-card--compact {
  padding: var(--space-3) var(--space-5);
}

.cs-item-card__title {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 3px;
}

.cs-item-card__desc {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* -------------------------------------------------------------
   Image containers
   ------------------------------------------------------------- */
.cs-image {
  width: 100%;
  overflow: hidden;
  background: var(--color-surface);
}

.cs-image img {
  width: 100%;
  height: auto;
  display: block;
}

.cs-image-grid {
  display: flex;
  justify-content: space-evenly;
  align-items: flex-start;
}

.cs-image-grid--3 .cs-image {
  width: 21%;
}

.cs-image-grid--2 .cs-image {
  width: 40%;
}

/* -------------------------------------------------------------
   User journey steps
   ------------------------------------------------------------- */
.cs-journeys {
  display: flex;
  flex-direction: row;
  gap: var(--space-4);
  align-items: stretch;
}

.cs-journey {
  flex: 1;
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cs-journey__video {
  width: 50%;
  border-radius: var(--border-radius);
  overflow: hidden;
  background: #000;
}

.cs-journey__video video {
  width: 100%;
  height: auto;
  display: block;
}

.cs-journey__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cs-journey__title {
  font-family: var(--font-accent);
  font-size: var(--scale-3);
  font-weight: 600;
  color: var(--color-text-primary);
}

.cs-journey__desc {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.cs-journey__steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.cs-step {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 500;
  color: var(--color-text-primary);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 4px 12px;
}

.cs-step--decision {
  background: #fff9ed;
  border-color: #e5d5a8;
  color: #7a5c1a;
}

.cs-step-arrow {
  font-size: var(--scale-2);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* -------------------------------------------------------------
   Stat cards — large number + label
   ------------------------------------------------------------- */
.cs-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.cs-stat {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cs-stat__number {
  font-family: var(--font-accent);
  font-size: var(--scale-8);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
}

.cs-stat__label {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 500;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* -------------------------------------------------------------
   Process steps — horizontal timeline
   ------------------------------------------------------------- */
.cs-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.cs-process-step {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cs-process-step__phase {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.cs-process-step__title {
  font-family: var(--font-accent);
  font-size: var(--scale-4);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.2;
  min-height: calc(var(--scale-4) * 1.2);
}

.cs-process-step__duration {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 700;
  color: var(--color-text-secondary);
  margin-top: -6px;
}

.cs-process-step__desc {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}

/* -------------------------------------------------------------
   Personas
   ------------------------------------------------------------- */
.cs-persona-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-persona {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-3) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Journey flow — horizontal step cards */
.cs-journey-flow {
  display: flex;
  align-items: stretch;
  gap: var(--space-3);
}

.cs-journey-step {
  flex: 1;
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.cs-journey-step__label {
  font-family: var(--font-accent);
  font-size: var(--scale-3);
  font-weight: 600;
  color: var(--color-text-primary);
}

.cs-journey-step__pain {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.4;
  flex: 1;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
}

.cs-journey-step__tools {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.cs-journey-step__label + .cs-journey-step__tools {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
  margin-top: 0px;
}

.cs-journey-tool {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  flex-shrink: 0;
}

.cs-journey-tool img,
.cs-journey-tool svg {
  width: 14px;
  height: 14px;
  display: block;
}

.cs-journey-tool i {
  font-size: 16px;
}

.cs-persona .cs-journey-step {
  background: #ffffff !important;
}

.cs-persona__name {
  font-family: var(--font-accent);
  font-size: var(--scale-5);
  font-weight: 700;
  color: var(--color-text-primary);
}

.cs-persona__role {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-top: -20px;
}

.cs-persona__scenario {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-top: -4px;
  padding-bottom: var(--space-3);
}

.cs-persona__goals {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.cs-persona__section-label {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.cs-journey-stages {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
}

.cs-journey-stage {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 600;
  color: var(--color-text-primary);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 3px 10px;
}

.cs-journey-arrow {
  font-size: var(--scale-1);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.cs-pain-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cs-pain-point {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.4;
  padding-left: var(--space-4);
  position: relative;
}

.cs-pain-point::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------
   Takeaways
   ------------------------------------------------------------- */
.cs-takeaways {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.cs-takeaway {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cs-takeaway__keyword {
  font-family: var(--font-accent);
  font-size: var(--scale-4);
  font-weight: 700;
  color: var(--color-text-primary);
}

.cs-takeaway__desc {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Dark card variant */
.cs-bento-card--dark {
  background: var(--color-surface);
  box-shadow: 0px 2px 30px -6px rgba(0, 0, 0, 0.35);
}

.cs-bento-card--dark .cs-takeaway {
  background: #ffffff;
}

.cs-bento-card--dark .cs-takeaway__keyword {
  color: var(--color-active);
}

.cs-bento-card--dark .cs-process-step {
  background: #ffffff;
}

/* -------------------------------------------------------------
   Key Decision cards
   ------------------------------------------------------------- */
.cs-decision {
  display: flex;
  flex-direction: row;
  gap: var(--space-7);
  align-items: flex-start;
}

.cs-decision__images {
  flex: 0 0 52%;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  order: 2;
}

.cs-decision__image-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cs-decision__image-label {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
}

.cs-decision__image-label--after {
  color: var(--color-active);
}

.cs-decision__img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
}

.cs-decision__img-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  color: var(--color-text-muted);
}

.cs-decision__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-decision-pairs {
  display: flex;
  flex-direction: row;
  gap: var(--space-6);
  align-items: flex-start;
}

.cs-decision-pair {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-decision-pair .cs-decision__image-wrapper {
  width: 100%;
}

.cs-decision-pair .cs-decision__body {
  width: 100%;
}

.cs-decision__title {
  font-family: var(--font-accent);
  font-size: var(--scale-5);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
}

.cs-decision__body {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

/* -------------------------------------------------------------
   Pull quote
   ------------------------------------------------------------- */
.cs-quote {
  font-family: var(--font-accent);
  font-size: var(--scale-4);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.4;
  padding-left: var(--space-5);
  border-left: 3px solid var(--color-border);
}

/* -------------------------------------------------------------
   Color palette
   ------------------------------------------------------------- */
.cs-palette-sections {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-palette-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cs-palette-section .cs-subsection-title {
  margin-top: 0;
}

.cs-palette {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.cs-swatch {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cs-swatch__color {
  width: 100%;
  height: 40px;
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.cs-swatch--primary .cs-swatch__color {
  height: 80px;
}

.cs-swatch--accent .cs-swatch__color {
  height: 40px;
}


.cs-swatch__hex {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.04em;
}

.cs-swatch__name {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 400;
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------
   Typography showcase
   ------------------------------------------------------------- */
.cs-type-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

.cs-type-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.cs-type-item__label {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 600;
  color: var(--color-text-muted);
}

.cs-type-item__sample {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.cs-type-item__meta {
  font-family: var(--font-primary);
  font-size: var(--scale-1);
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 3px;
}

/* -------------------------------------------------------------
   Figma prototype embeds — two side by side
   ------------------------------------------------------------- */
.cs-prototype-grid {
  display: flex;
  gap: var(--space-7);
}

.cs-prototype-embed {
  flex: 1;
  height: 1000px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius-lg);
}

/* -------------------------------------------------------------
   User flow columns — image-based flows side by side
   ------------------------------------------------------------- */
.cs-flow-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.cs-flow-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cs-flow-col__title {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.3;
}

/* -------------------------------------------------------------
   Image placeholder — used in case study scaffold sections
   ------------------------------------------------------------- */
.cs-image-placeholder {
  width: 100%;
  min-height: 320px;
  border-radius: var(--border-radius-lg);
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cs-image-placeholder p {
  font-family: var(--font-primary);
  font-size: var(--scale-2);
  font-weight: 500;
  color: var(--color-text-muted);
}

/* -------------------------------------------------------------
   Connect CTA card
   ------------------------------------------------------------- */
.cs-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
  padding: var(--space-5) 0;
}

.cs-cta__heading {
  font-family: var(--font-accent);
  font-size: var(--scale-6);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.15;
}

.cs-cta__body {
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 540px;
}

.cs-cta__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-primary);
  font-size: var(--scale-3);
  font-weight: 600;
  color: var(--color-active);
  text-decoration: none;
  transition: opacity 150ms ease;
}

.cs-cta__link:hover {
  opacity: 0.75;
}

.cs-cta__links {
  display: flex;
  flex-direction: row;
  gap: var(--space-5);
}