/*
  DIVD Academy reusable, accessible UI components (issue #16).
  Card shapes echo the logo's black pill and the DIVD-family rounded language
  observed on DIVD.Works / DIVD.Charity, without copying their layouts.
*/

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  min-height: 3rem;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: var(--font-weight-bold);
  font-size: 0.98rem;
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  transition: transform var(--motion-duration-fast) var(--motion-ease),
    background var(--motion-duration-fast) var(--motion-ease),
    box-shadow var(--motion-duration-fast) var(--motion-ease),
    border-color var(--motion-duration-fast) var(--motion-ease),
    color var(--motion-duration-fast) var(--motion-ease);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.24);
}

.button--primary {
  background: linear-gradient(180deg, #f7ef58 0%, var(--color-accent) 100%);
  color: var(--color-text-on-accent);
  border-color: rgba(245, 231, 22, 0.75);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: linear-gradient(180deg, #f8f26a 0%, #f0e511 100%);
  color: var(--color-text-on-accent);
}

.button--secondary {
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-text-primary);
  border-color: var(--color-surface-border);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  border-color: var(--color-accent);
  background: rgba(245, 231, 22, 0.05);
  color: var(--color-accent);
}

.site-nav .button {
  font-size: 0.82rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.15rem;
}

/* Cards */
.card {
  background: linear-gradient(180deg, rgba(22, 22, 22, 0.98), rgba(15, 15, 15, 0.96));
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.card h3 {
  margin-bottom: var(--space-xs);
}

.card--feature {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(22, 22, 22, 0.98), rgba(17, 17, 17, 0.98));
}

.card--feature::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent 70%);
}

.card--accent {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
}

.card--accent h3,
.card--accent p {
  color: var(--color-text-on-accent);
}

/* Badge / pill (echoes the logo's pill shape) */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-surface-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
}

/* Site header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 8, 8, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-surface-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--header-height);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
}

.site-header__logo img {
  height: 2.25rem;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  padding: var(--space-2xs) var(--space-xs);
  border-radius: var(--radius-pill);
}

.site-nav__list a:hover,
.site-nav__list a[aria-current="page"] {
  color: var(--color-accent);
}

.hero-section {
  position: relative;
  padding-top: var(--space-3xl);
}

.hero-layout {
  align-items: center;
  gap: clamp(var(--space-lg), 3vw, var(--space-3xl));
}

.hero-layout > * {
  min-width: 0;
}

/* Language switch: compact two-pill control (Charity-style pattern). */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-pill);
  padding: 2px;
}

.lang-switch a {
  padding: var(--space-3xs) var(--space-sm);
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

.lang-switch a[aria-current="true"] {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
}

/* Mobile nav toggle (progressive enhancement; nav remains reachable without JS
   because it is not hidden when JavaScript is disabled — see .site-nav noscript
   handling in base layout). */
.nav-toggle {
  display: none;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  background: transparent;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  cursor: pointer;
}

@media (max-width: 63.9375rem) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface-1);
    border-bottom: 1px solid var(--color-surface-border);
    padding: var(--space-md) var(--content-padding-inline);
  }

  .site-nav[data-expanded="false"] {
    display: none;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2xs);
  }
}

/* Site footer */
.site-footer {
  border-top: 1px solid var(--color-surface-border);
  background: var(--color-surface-1);
  padding-block: var(--space-2xl);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
}

.site-footer h3 {
  font-size: var(--font-size-h4);
  color: var(--color-text-primary);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li + li {
  margin-top: var(--space-2xs);
}

.site-footer a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
}

.site-footer__legal {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

/* Accordion (FAQ) — native <details>/<summary>, no JS required. */
.accordion {
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

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

.accordion-item summary {
  cursor: pointer;
  padding: var(--space-md);
  font-weight: var(--font-weight-medium);
  list-style: none;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.accordion-item summary::-webkit-details-marker {
  display: none;
}

.accordion-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--color-accent);
}

.accordion-item[open] summary::after {
  content: "\2212";
}

.accordion-item .accordion-body {
  padding: 0 var(--space-md) var(--space-md);
  color: var(--color-text-secondary);
}

/* Hero CTA row */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Stat callout card (Charity-style pillar callout). */
.stat-card {
  background: linear-gradient(180deg, rgba(24, 24, 24, 1), rgba(12, 12, 12, 1));
  border: 1px solid rgba(245, 231, 22, 0.24);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.32);
}

.hero-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(245, 231, 22, 0.08), rgba(17, 17, 17, 1));
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), transparent 65%);
}

.stat-card__row + .stat-card__row {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-card__value {
  font-size: var(--font-size-h3);
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

.stat-card__label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

/* News section with latest Substack posts. */
.news-card {
  background: linear-gradient(180deg, rgba(22, 22, 22, 0.98), rgba(12, 12, 12, 0.96));
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.news-card__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.news-card__link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.news-card__link:hover,
.news-card__link:focus-visible {
  color: var(--color-text-link-hover);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

.news-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-height: 100%;
  padding: var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}

.news-item__meta {
  color: var(--color-text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: var(--font-weight-bold);
}

.news-item h3 {
  margin: 0;
  line-height: 1.3;
}

.news-item h3 a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.news-item h3 a:hover,
.news-item h3 a:focus-visible {
  color: var(--color-accent);
}

.news-item__description {
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}

.news-item__date {
  margin-top: auto;
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.news-status {
  display: inline-flex;
  align-items: center;
  min-height: 200px;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

@media (max-width: 900px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}