/**
 * Page-Specific Layout Styles
 *
 * Supplements theme-layout.css and theme-components.css with layout
 * patterns used exclusively by the four PHP page templates.
 * All values use existing CSS variables from theme-base.css.
 *
 * @package EthicalInfrastructure
 */

/* ─── Material Symbols variation settings ───────────────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  line-height: 1;
}

/* ─── Eyebrow / label ───────────────────────────────────────────────────── */
.ep-eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-4);
}

/* ─── Hero ──────────────────────────────────────────────────────────────── */
.ei-hero {
  background-color: var(--color-background);
}

/* Fading gradient at bottom of hero */
.ep-hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(250,249,247,0) 0%, rgba(250,249,247,1) 100%);
}

.ep-hero-inner {
  max-width: 56rem; /* ~896px */
}

.ep-hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-display-lg);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.ep-hero-body {
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  max-width: 42rem;
  margin-bottom: var(--space-10);
}

.ep-hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Stat bar left cluster */
.ep-stat-bar-left {
  display: flex;
  gap: var(--space-10);
}

/* Stat bar right (globe icon + text) */
.ep-stat-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ─── Section header row (title left + arrows right) ────────────────────── */
.ep-section-header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.ep-section-header__text h2 {
  font-family: var(--font-display);
  font-size: var(--fs-headline-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

.ep-section-header__text p {
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  max-width: 42rem;
  margin: 0;
}

/* Arrow nav buttons */
.ep-arrow-btns {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

.ep-arrow-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--color-outline-variant);
  background: transparent;
  color: var(--color-primary);
  cursor: pointer;
  transition: var(--transition-colors);
}

.ep-arrow-btn:hover {
  background-color: var(--color-surface-container);
}

/* ─── 3-column cards grid ───────────────────────────────────────────────── */
.ep-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-gutter);
}

/* Individual card */
.ep-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 40px;
  border: 1px solid var(--color-outline-variant);
  background-color: var(--color-surface-container);
  transition: border-color 0.5s ease;
}

.ep-card:hover {
  border-color: var(--color-primary);
}

/* Navy filled card */
.ep-card--navy {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-on-primary);
}

.ep-card--navy:hover {
  border-color: var(--color-primary);
}

.ep-card__num {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-8);
}

.ep-card--navy .ep-card__num {
  color: var(--color-on-primary-container);
}

.ep-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-headline-lg);
  font-weight: var(--fw-semibold);
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.ep-card--navy .ep-card__title {
  color: var(--color-on-primary);
}

.ep-card__body {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  flex-grow: 1;
  margin-bottom: var(--space-8);
}

.ep-card--navy .ep-card__body {
  color: var(--color-on-primary-container);
}

.ep-card__link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap 0.3s ease;
  margin-top: auto;
}

.ep-card__link:hover {
  gap: 20px;
}

.ep-card--navy .ep-card__link {
  color: var(--color-on-primary);
}

/* ─── Equal-height cards in the Swiper carousel ─────────────────────────── */
.ei-cards-swiper .swiper-wrapper {
  align-items: stretch; /* all slides grow to the tallest card's height */
}

.ei-cards-swiper .swiper-slide {
  height: auto; /* let the slide expand to fill wrapper height */
  display: flex;
  flex-direction: column;
}

/* Body text takes all spare vertical space so the link always sits at the bottom */
.ei-cards-swiper .ep-card__body {
  flex: 1;
}

/* ─── Global Dialogue image (grayscale → color on hover) ────────────────── */
.ep-dialogue-wrap {
  position: relative;
  overflow: hidden;
}

.ep-dialogue-wrap img {
  display: block;
  width: 100%;
  height: 500px;
  object-fit: cover;
  object-position: center;
  filter: grayscale(1);
  transition: filter 0.7s ease;
}

.ep-dialogue-wrap:hover img {
  filter: grayscale(0);
}

.ep-dialogue-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-institutional-blue-faded);
  transition: background 0.5s ease;
  pointer-events: none;
}

.ep-dialogue-wrap:hover .ep-dialogue-overlay {
  background: transparent;
}

/* ─── Feature list (Global Dialogue) ───────────────────────────────────── */
.ep-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.ep-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  border-bottom: 1px solid var(--color-outline-variant);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
}

.ep-feature-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.ep-feature-item .material-symbols-outlined {
  font-size: 30px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.ep-feature-item h4 {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  margin-bottom: 4px;
}

.ep-feature-item p {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface-variant);
  line-height: 1.6;
  margin: 0;
}

/* ─── CTA Section ───────────────────────────────────────────────────────── */
.ep-cta-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.ep-cta-centered h2 {
  font-family: var(--font-display);
  font-size: var(--fs-headline-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  line-height: 1.2;
  max-width: 48rem;
  margin-bottom: var(--space-10);
}

.ep-cta-form {
  display: flex;
  width: 100%;
  max-width: 42rem;
  border: 1px solid var(--color-outline-variant);
  overflow: hidden;
}

.ep-cta-form input {
  flex-grow: 1;
  background: #ffffff;
  border: none;
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface);
  outline: none;
}

.ep-cta-form input::placeholder {
  color: var(--color-on-surface-variant);
}

.ep-cta-form button {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  padding: var(--space-5) var(--space-12);
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.ep-cta-form button:hover {
  opacity: 0.9;
}

.ep-cta-note {
  margin-top: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface-variant);
}

.ep-cta-note a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ─── Research — chapter number (outline text) ─────────────────────────── */
.ep-chapter-num {
  font-family: var(--font-display);
  font-size: var(--fs-display-lg);
  font-weight: var(--fw-bold);
  line-height: 1;
  -webkit-text-stroke: 1px var(--color-outline-variant);
  color: transparent;
  display: block;
  margin-bottom: var(--space-4);
}

/* ─── Research — policy rows ────────────────────────────────────────────── */
.ep-policy-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--color-outline-variant);
  filter: grayscale(1);
  mix-blend-mode: multiply;
  opacity: 0.8;
  display: block;
}

.ep-policy-link {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-primary);
  padding-bottom: 2px;
  transition: var(--transition-colors);
}

.ep-policy-link:hover {
  color: var(--color-on-primary-container);
}

/* ─── Research — bento grid ─────────────────────────────────────────────── */
.ep-bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-gutter);
  min-height: 600px;
}

.ep-bento-feature {
  grid-column: span 7;
  background: var(--color-background);
  border: 1px solid var(--color-outline-variant);
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.3s ease;
}

.ep-bento-feature:hover {
  border-color: var(--color-primary);
}

.ep-bento-feature .material-symbols-outlined {
  font-size: 36px;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.ep-bento-feature h3 {
  font-family: var(--font-display);
  font-size: var(--fs-headline-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.ep-bento-feature p {
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  color: var(--color-on-surface-variant);
  line-height: 1.6;
}

.ep-bento-feature__footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-top: 1px solid var(--color-outline-variant);
  padding-top: var(--space-6);
  margin-top: var(--space-10);
}

.ep-bento-feature__label {
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-outline);
}

.ep-bento-stack {
  grid-column: span 5;
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-gutter);
}

.ep-bento-card {
  background: var(--color-background);
  border: 1px solid var(--color-outline-variant);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.3s ease;
}

.ep-bento-card:hover {
  border-color: var(--color-primary);
}

.ep-bento-card--navy {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.ep-bento-card h3 {
  font-family: var(--font-display);
  font-size: var(--fs-headline-md);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.ep-bento-card--navy h3 {
  color: var(--color-on-primary);
}

.ep-bento-card p {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface-variant);
  line-height: 1.6;
}

.ep-bento-card--navy p {
  color: var(--color-on-primary);
  opacity: 0.8;
}

.ep-bento-card__footer-label {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-on-primary);
  opacity: 0.6;
}

/* ─── Research — pullquote ──────────────────────────────────────────────── */
.ep-pullquote {
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
}

.ep-pullquote .material-symbols-outlined {
  font-size: 60px;
  color: var(--color-outline-variant);
  margin-bottom: var(--space-6);
  display: block;
}

.ep-pullquote blockquote {
  font-family: var(--font-display);
  font-size: var(--fs-headline-xl);
  font-style: italic;
  color: var(--color-primary);
  line-height: 1.2;
  margin: 0 0 var(--space-8);
}

.ep-pullquote cite {
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-style: normal;
}

/* ─── Research — dark CTA section ──────────────────────────────────────── */
.ep-dark-cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 96px;
}

.ep-dark-cta__left {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.ep-dark-cta__heading {
  font-family: var(--font-display);
  font-size: var(--fs-headline-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-on-primary);
  line-height: 1.15;
  margin: 0;
}

.ep-dark-cta__note {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: rgba(250, 249, 247, 0.7);
  margin: 0;
  max-width: 38ch;
}

.ep-dark-cta__right {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Horizontal form: input + button side-by-side, one shared bottom border */
.ep-dark-cta-form {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0;
  width: 100%;
  border-bottom: 1px solid rgba(250, 249, 247, 0.3);
}

.ep-dark-cta-form input {
  background: transparent;
  border: none;          /* form container provides the shared underline */
  color: var(--color-on-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  padding: var(--space-4) 0;
  outline: none;
  flex: 1;              /* take all remaining width */
  min-width: 0;
}

.ep-dark-cta-form input::placeholder {
  color: var(--color-outline-variant);
}

.ep-dark-cta-form button {
  background: transparent;
  border: none;
  color: var(--color-on-primary);
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-4) 0 var(--space-4) var(--space-6);
  cursor: pointer;
  text-align: right;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity 0.2s ease;
}

.ep-dark-cta-form button:hover {
  opacity: 0.7;
}

/* ─── About — blockquote (italic with left border) ──────────────────────── */
.ep-blockquote {
  font-family: var(--font-body);
  font-size: var(--fs-body-lg);
  font-style: italic;
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  border-left: 4px solid var(--color-outline-variant);
  padding: var(--space-2) var(--space-8);
  margin-bottom: var(--space-10);
}

/* ─── About — section image ─────────────────────────────────────────────── */
.ep-doc-image {
  width: 100%;
  height: 450px;
  object-fit: cover;
  object-position: center;
  filter: grayscale(1);
  opacity: 0.9;
  display: block;
  margin-bottom: var(--space-12);
}

/* ─── About — research pillar callout ───────────────────────────────────── */
.ep-research-pillar {
  background: var(--color-surface-container-low);
  border: 1px solid var(--color-outline-variant);
  padding: 40px;
  margin: var(--space-10) 0;
}

.ep-research-pillar h4 {
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.ep-research-pillar p {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  font-style: italic;
  color: var(--color-on-surface-variant);
  margin: 0;
}

/* ─── About — TOC sidebar links ─────────────────────────────────────────── */
.ep-toc-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color 0.3s ease;
}

.ep-toc-link:hover,
.ep-toc-link--active {
  color: var(--color-primary);
}

.ep-toc-line {
  display: inline-block;
  height: 1px;
  width: 16px;
  background: var(--color-outline-variant);
  transition: width 0.3s ease;
  flex-shrink: 0;
}

.ep-toc-link:hover .ep-toc-line,
.ep-toc-link--active .ep-toc-line {
  width: 32px;
  background: var(--color-primary);
}

/* ─── Contact — underline form ──────────────────────────────────────────── */
.ep-form-field {
  position: relative;
  margin-bottom: 0;
}

.ep-form-label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-2);
}

.ep-form-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-outline-variant);
  padding: var(--space-3) 0;
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface);
  outline: none;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

.ep-form-input::placeholder {
  color: var(--color-on-surface-variant);
  opacity: 0.5;
}

.ep-form-input:focus {
  border-bottom-color: var(--color-primary);
}

.ep-form-textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-outline-variant);
  padding: var(--space-3) 0;
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface);
  outline: none;
  resize: none;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

.ep-form-textarea:focus {
  border-bottom-color: var(--color-primary);
}

.ep-form-submit {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  padding: var(--space-4) var(--space-10);
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.ep-form-submit:hover {
  opacity: 0.9;
}

.ep-contact-info h3 {
  font-family: var(--font-body);
  font-size: var(--fs-label-caps);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-2);
}

.ep-contact-info p {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface);
  line-height: 1.6;
  margin: 0;
}

/* ─── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .ep-section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .ep-cards-grid {
    grid-template-columns: 1fr;
  }

  .ep-bento-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .ep-bento-feature,
  .ep-bento-stack {
    grid-column: span 1;
  }

  .ep-bento-stack {
    grid-template-rows: auto;
  }

  .ep-dark-cta {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .ep-dark-cta-form {
    flex-direction: column;
    border-bottom: none;
  }

  .ep-dark-cta-form input {
    border-bottom: 1px solid rgba(250, 249, 247, 0.3);
    padding-bottom: var(--space-4);
  }

  .ep-dark-cta-form button {
    padding-left: 0;
    text-align: left;
  }

  .ep-pullquote blockquote {
    font-size: var(--fs-headline-lg);
  }
}

@media (max-width: 768px) {
  .ep-hero-title {
    font-size: 36px;
  }

  .ep-hero-body {
    font-size: var(--fs-body-md);
  }

  .ep-hero-buttons {
    flex-direction: column;
  }

  .ep-hero-buttons .ei-btn {
    width: 100%;
    justify-content: center;
  }

  .ep-stat-bar-left {
    gap: var(--space-6);
  }

  .ei-hero__stat-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .ep-cta-form {
    flex-direction: column;
  }

  .ep-dialogue-wrap img {
    height: 280px;
  }

  .ep-doc-image {
    height: 250px;
  }

  .ep-pullquote blockquote {
    font-size: var(--fs-headline-md);
  }
}

/* ─── About — doc layout desktop 2-col ─────────────────────────────────── */
@media (min-width: 1025px) {
  .ei-doc-layout {
    grid-template-columns: 3fr 9fr;
    /* No align-items override — stretch (default) lets sidebar column fill
       the full row height so position:sticky on the inner has room to scroll */
  }

  .ei-doc-sidebar {
    display: block;
    /* align-self: stretch (default) — column is as tall as the content column,
       giving the sticky inner its scroll range */
  }
}