/* Open-Book — layout global (header / footer) */

/* —— Header —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(1, 1, 1, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow 0.3s var(--ease-out);
}

.site-header--scrolled {
  box-shadow: var(--shadow-lg);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo-img {
  height: 5rem;
  width: auto;
}

/* Desktop nav */
.site-nav--desktop {
  display: none;
}

@media (min-width: 1024px) {
  .site-nav--desktop {
    display: block;
  }
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__track {
  position: relative;
}

.site-nav__indicator {
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(to right, var(--color-gold-light), var(--color-gold));
  transition: left 0.35s var(--ease-out), width 0.35s var(--ease-out), opacity 0.2s var(--ease-out);
  pointer-events: none;
}

.site-nav__link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-soft);
  transition: color 0.3s var(--ease-out);
}

.site-nav__link:hover {
  color: var(--color-white);
}

.site-nav__link--active {
  color: var(--color-gold-light);
}

.page-main {
  min-height: 100vh;
  padding-top: var(--header-height);
  transition: opacity 0.2s var(--ease-out);
}

.page-main.is-swapping {
  opacity: 0.55;
}

/* Header actions */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  min-inline-size: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  overflow: hidden;
}

.lang-switch legend {
  padding: 0;
}

.lang-switch__btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  color: var(--color-text-muted);
  transition: all 0.2s var(--ease-out);
}

.lang-switch__btn:hover {
  color: var(--color-white);
}

.lang-switch__btn--active {
  background: var(--color-gold-light);
  color: var(--color-bg);
}

.btn-onvio {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  border-radius: 9999px;
  background: var(--color-green);
  color: var(--color-white);
  transition: background-color 0.15s, transform 0.1s;
}

.btn-onvio:hover {
  background: var(--color-green-hover);
  transform: scale(1.02);
}

.btn-onvio:active {
  transform: scale(0.98);
}

.btn-onvio--header {
  display: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

.btn-onvio--standalone {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

@media (min-width: 1024px) {
  .btn-onvio--header {
    display: inline-flex;
  }
}

.btn-onvio__icon {
  width: 1rem;
  height: 1rem;
}

.site-header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border: none;
  background: transparent;
  color: var(--color-white);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .site-header__menu-toggle {
    display: none;
  }
}

.site-header__menu-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* Mobile nav */
.site-nav-mobile {
  overflow: hidden;
  background: rgba(1, 1, 1, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
}

.site-nav-mobile:not([hidden]) {
  animation: mobile-nav-in 0.2s var(--ease-out);
}

@keyframes mobile-nav-in {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 40rem;
  }
}

.site-nav-mobile__list {
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.site-nav-mobile__link {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-soft);
  transition: color 0.2s;
}

.site-nav-mobile__link--active {
  color: var(--color-gold-light);
}

.site-nav-mobile__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

.lang-switch--mobile .lang-switch__btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.site-nav-mobile .btn-onvio--header {
  display: inline-flex;
}

/* —— Buttons (global) —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 9999px;
  transition: background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), gap 0.2s var(--ease-out), transform 0.1s;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-gold-hover);
}

.btn-primary--on-gold {
  background: var(--color-gold);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary--on-gold:hover {
  background: var(--color-gold-hover);
}

.btn-primary--arrow:hover .btn-primary__icon {
  transform: translateX(0.25rem);
}

.btn-primary__icon {
  transition: transform 0.2s var(--ease-out);
}

.btn-secondary {
  color: var(--color-text-soft);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

.btn-outline {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-outline--arrow:hover {
  gap: 0.75rem;
}

.btn-dark {
  background: var(--color-bg);
  color: var(--color-white);
}

.btn-dark:hover {
  background: #1a1a1a;
}

.btn-dark--arrow:hover {
  gap: 0.75rem;
}

/* —— Footer —— */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.site-footer__news {
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 0;
}

.site-footer__news-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.site-footer__news-icon-wrap {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: rgba(159, 116, 35, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold-light);
}

.site-footer__news-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.site-footer__news-title {
  font-size: 1.5rem;
  font-weight: 600;
}

.site-footer__news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .site-footer__news-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.news-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.news-card:hover {
  border-color: rgba(159, 116, 35, 0.3);
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.news-card__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-gold-light);
}

.news-card__category {
  font-size: 0.75rem;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-card__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.375;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.news-card__body,
.news-card__highlights li,
.news-card__guidance {
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--color-text-soft);
}

.news-card__highlights {
  margin: 1rem 0;
}

.news-card__highlights li::before {
  content: '• ';
}

.news-card__guidance {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.site-footer__main {
  padding: 4rem 0;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.site-footer__logo-img {
  height: 2.75rem;
  width: auto;
  margin-bottom: 1rem;
}

.site-footer__description {
  font-size: 0.875rem;
  line-height: 1.625;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.site-footer__tagline {
  font-size: 0.75rem;
  color: var(--color-gold-light);
}

.site-footer__heading {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.site-footer__link {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.site-footer__links .site-footer__link:hover,
.site-footer__contact .site-footer__link:hover {
  color: var(--color-gold-light);
  transform: translateX(0.125rem);
}

.site-footer__contact .site-footer__link:hover {
  color: var(--color-white);
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.site-footer__contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.site-footer__contact a {
  transition: color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.site-footer__contact-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-gold-light);
  margin-top: 0.125rem;
}

.site-footer__social {
  display: flex;
  gap: 1rem;
}

.site-footer__social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: background 0.2s, color 0.2s;
}

.site-footer__social-link:hover {
  background: var(--color-gold);
  color: var(--color-white);
}

.site-footer__social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

.site-footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
}

.site-footer__bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer__bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.site-footer__copy {
  font-size: 0.875rem;
  color: var(--color-text-faint);
}

.site-footer__slogan {
  font-size: 0.875rem;
  color: var(--color-text-faint);
}

/* Placeholder main (dev) */
.page-placeholder {
  padding: 6rem 0;
  text-align: center;
}

.page-placeholder h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.page-placeholder p {
  color: var(--color-text-muted);
  max-width: 36rem;
  margin-inline: auto;
}