/* Components: nav, buttons, chips, badges, cards, device frame, FAQ, carousel, modal, toast, footer. */

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-block-size: var(--touch);
  padding: var(--space-2) var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: var(--fs-md);
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out), box-shadow var(--dur) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: 0 8px 20px -8px var(--primary-glow);
}

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

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary-text);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  background: var(--surface);
}

.btn-lg {
  min-block-size: 56px;
  padding-inline: var(--space-6);
  font-size: var(--fs-lg);
}

.btn-sm {
  min-block-size: 40px;
  padding-inline: var(--space-4);
  font-size: var(--fs-sm);
}

.btn-block {
  inline-size: 100%;
}

.btn[aria-busy="true"] {
  opacity: 0.7;
  pointer-events: none;
}

.btn-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.btn-stack small {
  font-size: var(--fs-xs);
  font-weight: 500;
  opacity: 0.85;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  inline-size: var(--touch);
  block-size: var(--touch);
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text);
  transition: background-color var(--dur-fast) var(--ease-out);
}

.icon-btn:hover {
  background: var(--surface-2);
}

.icon-btn-outline {
  border: 1px solid var(--border-strong);
  background: var(--surface);
}

.icon-btn-sm {
  inline-size: 36px;
  block-size: 36px;
}

/* ===== Chips & badges ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: 600;
}

.chip-soft {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.chip .i {
  inline-size: 1em;
  block-size: 1em;
}

.dot {
  inline-size: 8px;
  block-size: 8px;
  border-radius: 50%;
  background: currentColor;
}

.dot-online {
  background: var(--online);
  box-shadow: 0 0 0 4px var(--online-soft);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 800;
}

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

/* ===== Store badges ===== */
.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-block-size: var(--touch);
  padding: var(--space-1) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.store-badge:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.store-badge-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.store-badge-text small {
  color: var(--text-subtle);
  font-size: 0.72rem;
}

.store-badge-text span {
  font-weight: 700;
  font-size: var(--fs-sm);
}

/* ===== Nav ===== */
.site-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  border-block-end: 1px solid transparent;
  background: var(--surface-glass);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  backdrop-filter: saturate(160%) blur(16px);
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.site-nav.is-scrolled {
  border-block-end-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  block-size: var(--nav-h);
  transition: block-size var(--dur) var(--ease-out);
}

.site-nav.is-scrolled .nav-inner {
  block-size: var(--nav-h-compact);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  font-size: var(--fs-lg);
  min-block-size: var(--touch);
}

.brand-icon {
  border-radius: 10px;
  transition: inline-size var(--dur) var(--ease-out), block-size var(--dur) var(--ease-out);
}

.site-nav.is-scrolled .brand-icon {
  inline-size: 30px;
  block-size: 30px;
}

.nav-menu {
  margin-inline-start: auto;
}

.nav-menu ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-block-size: var(--touch);
  padding-inline: var(--space-3);
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-weight: 600;
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--text);
  background: var(--surface-2);
}

.nav-menu-cta {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.lang-switch {
  display: inline-grid;
  place-items: center;
  min-inline-size: var(--touch);
  block-size: var(--touch);
  padding-inline: var(--space-2);
  border-radius: var(--radius-pill);
  color: var(--text);
  font-weight: 800;
  font-size: var(--fs-sm);
  text-decoration: none;
}

.lang-switch:hover {
  background: var(--surface-2);
}

.theme-icon-moon {
  display: none;
}

:root[data-theme="dark"] .theme-icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-sun {
    display: none;
  }

  :root:not([data-theme="light"]) .theme-icon-moon {
    display: block;
  }
}

.nav-toggle {
  display: none;
}

.burger {
  display: grid;
  gap: 5px;
  inline-size: 20px;
}

.burger span {
  display: block;
  block-size: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease-out), opacity var(--dur-fast);
}

.nav-toggle[aria-expanded="true"] .burger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .burger span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .burger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 899px) {
  .nav-toggle {
    display: inline-grid;
  }

  .nav-cta {
    display: none;
  }

  .nav-menu {
    position: fixed;
    inset-inline: var(--space-3);
    inset-block-start: calc(var(--nav-h) + var(--space-2));
    margin: 0;
    padding: var(--space-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top center;
    transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s linear var(--dur);
  }

  .site-nav.is-scrolled .nav-menu {
    inset-block-start: calc(var(--nav-h-compact) + var(--space-2));
  }

  .nav-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s;
  }

  .nav-menu ul {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-link {
    padding-inline: var(--space-4);
    font-size: var(--fs-md);
  }

  .nav-menu-cta {
    display: block;
    margin-block-start: var(--space-2);
  }

  .nav-menu-cta .btn {
    inline-size: 100%;
  }
}

/* ===== Device (phone) frame ===== */
.device {
  position: relative;
  aspect-ratio: 600 / 1171;
  padding: 8px;
  border-radius: 36px;
  background: var(--navy-900);
  box-shadow: var(--shadow-lg), inset 0 0 0 1.5px var(--on-brand-fill);
}

.device::before {
  content: "";
  position: absolute;
  inset-block-start: 14px;
  inset-inline-start: 50%;
  z-index: 1;
  inline-size: 26%;
  block-size: 16px;
  border-radius: var(--radius-pill);
  background: var(--navy-900);
  transform: translateX(-50%);
}

[dir="rtl"] .device::before {
  transform: translateX(50%);
}

.device img,
.device picture {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  border-radius: 28px;
}

/* ===== Feature icon tile ===== */
.feature-icon {
  display: inline-grid;
  place-items: center;
  inline-size: 48px;
  block-size: 48px;
  border-radius: 14px;
}

.feature-icon .i {
  inline-size: 24px;
  block-size: 24px;
}

.feature-icon-royal {
  background: var(--primary-soft);
  color: var(--primary-text);
}

.feature-icon-coral {
  background: var(--accent-soft);
  color: var(--accent-text);
}

.feature-icon-sky {
  background: var(--sky-soft);
  color: var(--sky);
}

.feature-icon-green {
  background: var(--online-soft);
  color: var(--online);
}

.feature-icon-neutral {
  background: var(--surface-2);
}

.check-list {
  display: grid;
  gap: var(--space-2);
  margin-block-start: var(--space-3);
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  color: var(--text-muted);
}

.check-list .i {
  margin-block-start: 0.2em;
  color: var(--online);
}

/* ===== FAQ (details/summary) ===== */
.faq {
  display: grid;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.faq-item[open] {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-block-size: 56px;
  padding: var(--space-3) var(--space-5);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "";
  flex-shrink: 0;
  inline-size: 10px;
  block-size: 10px;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease-out);
  color: var(--text-subtle);
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.faq-body {
  padding: 0 var(--space-5) var(--space-4);
  color: var(--text-muted);
}

/* ===== Carousel ===== */
.carousel-controls {
  display: flex;
  gap: var(--space-2);
}

.carousel-track {
  display: flex;
  gap: var(--space-5);
  margin: 0;
  padding: var(--space-3) max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter))) var(--space-5);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
  scrollbar-width: none;
  overscroll-behavior-x: contain;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-item {
  flex: 0 0 auto;
  inline-size: clamp(200px, 60vw, 260px);
  scroll-snap-align: start;
}

.carousel-item figcaption {
  margin-block-start: var(--space-3);
  text-align: center;
  font-weight: 700;
  color: var(--text-muted);
}

/* ===== Skeleton ===== */
.skeleton {
  background: linear-gradient(90deg, var(--skeleton) 25%, var(--skeleton-shine) 50%, var(--skeleton) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s linear infinite;
}

@keyframes shimmer {
  from {
    background-position: 200% 0;
  }
  to {
    background-position: -200% 0;
  }
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: var(--space-4);
}

.modal-scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  inline-size: min(960px, 100%);
  max-block-size: min(88vh, 720px);
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.modal-dialog.no-media {
  grid-template-columns: 1fr;
  inline-size: min(560px, 100%);
}

.modal-grabber {
  display: none;
}

.modal-close {
  position: absolute;
  inset-block-start: var(--space-2);
  inset-inline-end: var(--space-2);
  z-index: 2;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.modal-media {
  display: grid;
  place-items: center;
  min-block-size: 0;
  background: var(--media-bg);
}

.modal-media img,
.modal-media video {
  inline-size: 100%;
  block-size: 100%;
  max-block-size: min(88vh, 720px);
  object-fit: contain;
}

.modal-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-5) var(--space-5);
  overflow-y: auto;
}

.modal-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-inline-end: var(--space-7);
}

.modal-author img {
  border-radius: 50%;
  object-fit: cover;
  inline-size: 44px;
  block-size: 44px;
}

.modal-author-name {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-weight: 800;
}

.modal-author-handle {
  color: var(--text-subtle);
  font-size: var(--fs-sm);
  text-align: start;
}

.modal-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.modal-date {
  color: var(--text-subtle);
  font-size: var(--fs-sm);
}

.modal-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.modal-info .btn-block {
  margin-block-start: auto;
}

@media (max-width: 719px) {
  .modal {
    place-items: end stretch;
    padding: 0;
  }

  .modal-dialog {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    inline-size: 100%;
    max-block-size: 92vh;
    overflow-y: auto;
    border-end-start-radius: 0;
    border-end-end-radius: 0;
    touch-action: pan-y;
  }

  .modal-grabber {
    display: block;
    position: absolute;
    inset-block-start: 8px;
    inset-inline-start: 50%;
    z-index: 3;
    inline-size: 44px;
    block-size: 5px;
    border-radius: var(--radius-pill);
    background: var(--grabber);
    transform: translateX(-50%);
  }

  [dir="rtl"] .modal-grabber {
    transform: translateX(50%);
  }

  .modal-media {
    max-block-size: 60vh;
    overflow: hidden;
  }

  .modal-media img,
  .modal-media video {
    block-size: auto;
    max-block-size: 60vh;
  }

  .modal-info {
    overflow: visible;
    padding-block-start: var(--space-5);
  }
}

/* ===== Toast ===== */
.toast-region {
  position: fixed;
  inset-inline: var(--space-4);
  inset-block-end: calc(var(--space-5) + env(safe-area-inset-bottom));
  z-index: 90;
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-inline-size: 460px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--pill-dark);
  color: var(--on-pill-dark);
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  pointer-events: auto;
}

.toast .btn {
  min-block-size: 36px;
  padding-inline: var(--space-4);
  background: var(--on-pill-dark);
  color: var(--navy-900);
  box-shadow: none;
}

/* ===== Footer ===== */
.site-footer {
  margin-block-start: var(--space-4);
  border-block-start: 1px solid var(--border);
  background: var(--bg-alt);
}

.footer-grid {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-7) var(--space-6);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1.2fr 1.4fr;
  }
}

.footer-brand p {
  margin-block-start: var(--space-3);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  max-inline-size: 36ch;
}

.footer-title {
  margin-block-end: var(--space-3);
  font-size: var(--fs-md);
}

.footer-col ul {
  margin: 0;
}

.footer-col li a {
  display: inline-flex;
  align-items: center;
  min-block-size: 36px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--fs-sm);
}

.footer-col li a:hover {
  color: var(--primary-text);
}

.footer-col .store-badges {
  flex-direction: column;
  align-items: flex-start;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: var(--space-4) var(--space-6);
  border-block-start: 1px solid var(--border);
  color: var(--text-subtle);
  font-size: var(--fs-sm);
}

.verified-check {
  stroke: var(--on-primary);
}