/* ============================================================
   style.css — Case Study Page (/case/)
   healthinsight.news
   ============================================================ */

@import url('../tokens.css');

/* ── Base ───────────────────────────────────────────────── */
body {
  font-family: var(--font-public, var(--font-body));
  background-color: var(--color-surface);
  color: var(--color-on-surface);
}

/* ── Main ───────────────────────────────────────────────── */
.case-main {
  padding-top: 1rem;
  padding-bottom: 5rem;
}

/* ── Hero ───────────────────────────────────────────────── */
.case-hero {
  max-width: var(--max-w-7xl);
  margin: 0 auto;
  padding: 0 1.5rem;
  margin-bottom: 4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: end;
}

@media (min-width: 1024px) {
  .case-hero { grid-template-columns: 7fr 5fr; }
}

.case-hero__verified-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-secondary-container);
  color: var(--color-on-secondary-container);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.case-hero__verified-badge .material-symbols-outlined {
  font-size: 0.75rem;
  margin-right: 0.5rem;
  font-variation-settings: 'FILL' 1;
  color: var(--color-on-secondary-container);
}

.case-hero__title {
  font-family: var(--font-headline);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-on-background);
  line-height: 1.05;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .case-hero__title { font-size: 4.375rem; }
}

.case-hero__title .text-primary-italic {
  color: var(--color-primary);
  font-style: italic;
}

.case-hero__subtitle {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: #4b5563;
  line-height: 1.625;
  max-width: 40rem;
}

@media (min-width: 768px) {
  .case-hero__subtitle { font-size: 1.5rem; }
}

/* Hero Image Column */
.case-hero__img-col {
  position: relative;
}

.case-hero__img-wrap {
  aspect-ratio: 4/5;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.case-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter var(--transition-slow);
}

.case-hero__img-col:hover .case-hero__img {
  filter: grayscale(0%);
}

.case-hero__profile-card {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background-color: #ffffff;
  padding: 1.5rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  max-width: 15rem;
  border-left: 4px solid var(--color-tertiary);
}

.case-hero__profile-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #9ca3af;
  margin-bottom: 0.5rem;
}

.case-hero__profile-name {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.case-hero__profile-desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: #6b7280;
}

/* ── Article Layout ─────────────────────────────────────── */
.case-article {
  max-width: var(--max-w-7xl);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

@media (min-width: 1024px) {
  .case-article { grid-template-columns: 3fr 6fr 3fr; }
}

/* ── Left Sidebar ───────────────────────────────────────── */
.case-sidebar-left {
  display: none;
}

@media (min-width: 1024px) {
  .case-sidebar-left { display: block; }
}

.case-sidebar-left__sticky {
  position: sticky;
  top: 8rem;
}

.sidebar-meta-group {
  margin-bottom: 3rem;
}

.sidebar-meta-group + .sidebar-meta-group {
  margin-bottom: 0;
}

.sidebar-meta-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #9ca3af;
  margin-bottom: 0.5rem;
}

.sidebar-meta-value {
  font-weight: 500;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.sidebar-tag {
  padding: 0.25rem 0.5rem;
  background-color: var(--color-surface-container-low);
  color: #4b5563;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  border: 1px solid rgba(232,189,182,0.2);
}

.sidebar-author {
  padding-top: 2rem;
  border-top: 1px solid #f1f5f9;
}

.sidebar-author__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.sidebar-author__img {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  object-fit: cover;
}

.sidebar-author__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.075em;
  color: #9ca3af;
}

.sidebar-author__name {
  font-size: 0.875rem;
  font-weight: 700;
}

/* ── Main Article ───────────────────────────────────────── */
.case-content {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.case-act {
  /* Act sections */
}

.case-act__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
}

.case-act__pull {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1.625;
  color: var(--color-on-background);
  margin-bottom: 2rem;
  font-style: italic;
}

.case-act__body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: #374151;
  line-height: 1.625;
}

.case-act__body + .case-act__body {
  margin-top: 1.5rem;
}

/* Act II — highlighted */
.case-act--discovery {
  background-color: var(--color-surface-container-low);
  margin-left: -1.5rem;
  margin-right: -1.5rem;
  padding: 3rem 1.5rem;
  border-radius: var(--radius-sm);
}

@media (min-width: 1024px) {
  .case-act--discovery {
    margin-left: -3rem;
    margin-right: -3rem;
    padding: 3rem;
  }
}

.case-blockquote {
  margin: 3rem 0;
  padding-left: 2rem;
  border-left: 4px solid var(--color-tertiary);
}

.case-blockquote p {
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-style: italic;
  color: var(--color-on-background);
  line-height: 1.35;
}

/* Results image */
.case-figure {
  margin: 2.5rem 0;
  aspect-ratio: 16/9;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.case-figure__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-figure__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(19,27,46,0.6), transparent);
}

.case-figure__caption {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* CTA Block */
.case-cta {
  background-color: var(--color-on-background);
  color: #ffffff;
  padding: 2rem;
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .case-cta { padding: 3rem; }
}

.case-cta__content { position: relative; z-index: 1; }

.case-cta__title {
  font-family: var(--font-headline);
  font-size: 1.875rem;
  margin-bottom: 1rem;
}

.case-cta__subtitle {
  font-family: var(--font-body);
  color: #94a3b8;
  margin-bottom: 2rem;
  max-width: 28rem;
}

.case-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: linear-gradient(155deg, #735c00 0%, #cba72f 100%);
  color: var(--color-on-tertiary);
  font-weight: 700;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.case-cta__btn:hover {
  opacity: 0.9;
  transform: scale(0.98);
}

.case-cta__btn .material-symbols-outlined {
  color: var(--color-on-tertiary);
  transition: transform var(--transition-base);
}

.case-cta__btn:hover .material-symbols-outlined {
  transform: translateX(4px);
}

.case-cta__bg-icon {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 33%;
  opacity: 0.1;
  pointer-events: none;
  display: flex;
  align-items: center;
}

.case-cta__bg-icon .material-symbols-outlined {
  font-size: 12.5rem;
  color: #ffffff;
  font-variation-settings: 'FILL' 1;
}

/* ── Right Sidebar ──────────────────────────────────────── */
.case-sidebar-right {
  /* visible on all screens */
}

@media (min-width: 1024px) {
  .case-sidebar-right__sticky {
    position: sticky;
    top: 8rem;
  }
}

.sidebar-stats-card {
  background-color: #ffffff;
  border: 1px solid #f1f5f9;
  padding: 2rem;
  margin-bottom: 2rem;
}

.sidebar-stats-card__title {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 2rem;
}

.sidebar-stat {
  margin-bottom: 2.5rem;
}

.sidebar-stat:last-child { margin-bottom: 0; }

.sidebar-stat__value {
  font-family: var(--font-headline);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-on-background);
}

.sidebar-stat__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #6b7280;
  margin-top: 0.5rem;
}

.sidebar-stats-divider {
  width: 100%;
  height: 1px;
  background-color: #f1f5f9;
  margin: 2rem 0;
}

.sidebar-disclaimer {
  margin-top: 3rem;
  padding: 1rem;
  background-color: rgba(115,92,0,0.05);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--color-tertiary);
}

.sidebar-disclaimer p {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  line-height: 1.625;
  color: #4b5563;
}

/* Newsletter Mini */
.sidebar-newsletter {
  background-color: var(--color-surface-container-highest);
  padding: 2rem;
}

.sidebar-newsletter__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.sidebar-newsletter__subtitle {
  font-size: 0.875rem;
  color: #4b5563;
  margin-bottom: 1rem;
}

.sidebar-newsletter__input {
  width: 100%;
  background-color: #ffffff;
  border: none;
  font-size: 0.875rem;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  outline: none;
  transition: box-shadow var(--transition-base);
}

.sidebar-newsletter__input:focus {
  box-shadow: 0 0 0 1px var(--color-primary);
}

.sidebar-newsletter__btn {
  width: 100%;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.sidebar-newsletter__btn:hover {
  background-color: var(--color-primary-container);
}