/**
 * MX Public Site — unified base styles and component library.
 * Uses --mx-* tokens from mx_tokens.css.
 * Reset, typography classes, common components (card, button, tag, grid).
 */

/* ===== Reset & Base ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

@supports (overflow: clip) {
  html,
  body {
    overflow-x: clip;
  }
}

html {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--mx-font-family);
  background-color: var(--mx-bg);
  color: var(--mx-ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  font-size: var(--mx-font-size-body);
  overflow-x: hidden;
  width: 100%;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== Links ===== */
a {
  color: var(--mx-accent);
  text-decoration: none;
  transition: all 0.1s ease;
}

a:hover {
  opacity: 0.8;
}

/* ===== Layout ===== */
.mx-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
}

.mx-section {
  padding: 4rem 0;
}

/* ===== Typography ===== */
.mx-title-1 {
  font-size: var(--mx-font-size-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.mx-title-2 {
  font-size: var(--mx-font-size-h1);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
}

.mx-title-3 {
  font-size: var(--mx-font-size-h2);
  font-weight: 600;
  line-height: 1.2;
}

/* ===== Components ===== */

/* Card */
.mx-card {
  border: 1px solid var(--mx-line);
  border-radius: var(--mx-radius-md);
  padding: var(--mx-space-6);
  box-shadow: var(--mx-shadow-sm);
  position: relative;
  background: var(--mx-surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
}

.mx-card:hover {
  box-shadow: var(--mx-shadow-md);
}

.mx-width-feed {
  max-width: 520px;
  width: 100%;
}

.mx-width-content {
  max-width: 960px;
}

/* Button */
.mx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--mx-space-2);
  font-weight: 500;
  text-decoration: none;
  border: none;
  transition: all 0.15s ease-in-out;
  cursor: pointer;
  position: relative;
  border-radius: var(--mx-radius-sm);
  padding: 0.6rem 1.25rem;
  font-size: 0.95rem;
  background: #f0f0f0;
  color: var(--mx-ink);
  box-shadow: none;
}

.mx-btn:hover {
  background: #e4e4e4;
  transform: none;
  box-shadow: none;
}

.mx-btn:active {
  transform: scale(0.98);
  box-shadow: none;
}

.mx-btn-primary {
  background-color: var(--mx-accent-strong);
  color: #fff;
}

.mx-btn-secondary {
  background-color: var(--mx-accent);
  color: #fff;
}

.mx-btn-accent {
  background-color: var(--mx-accent-strong);
  color: #fff;
}

.mx-btn.is-liked {
  background-color: var(--mx-accent-strong);
  color: #fff;
}

/* Tag */
.mx-tag {
  display: inline-block;
  background: var(--mx-bg);
  color: var(--mx-muted);
  padding: var(--mx-space-1) var(--mx-space-2);
  border-radius: 9999px;
  font-size: var(--mx-font-size-small);
  font-weight: 500;
  text-transform: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.mx-tag:hover {
  background: #e5e5e5;
  color: var(--mx-ink);
}

/* Marker highlight */
.mx-marker-highlight {
  background: var(--mx-highlight);
  padding: 0 0.2em;
  border-radius: var(--mx-radius-xs);
  display: inline-block;
}

/* ===== Grid ===== */
.mx-grid {
  display: grid;
  gap: var(--mx-space-6);
}

.mx-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.mx-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.mx-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* ===== Focus Visible (Accessibility) ===== */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--mx-accent);
  outline-offset: 3px;
}

summary:focus-visible {
  outline: 3px solid var(--mx-accent);
  outline-offset: 3px;
}

/* ===== Responsive adjustments ===== */
@media (min-width: 1024px) {
  .mx-grid-2 {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

@media (max-width: 600px) {
  html {
    font-size: 14px;
  }

  .mx-container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .mx-section {
    padding: 2rem 0;
  }

  .mx-card {
    max-width: 100%;
    padding: 1.25rem;
  }
}

/* ===== Legacy / Base utility overrides ===== */
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--mx-line);
  padding: 10px 0;
  font-size: 13px;
  font-weight: 700;
  box-shadow: none;
}

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--mx-ink);
}

.breadcrumb li:not(:last-child)::after {
  content: "→";
  margin-left: 8px;
  font-weight: 900;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== Lightbox ===== */
.mx-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.94);
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s;
  z-index: 10000;
  color: #fff;
}

.mx-lightbox.active {
  opacity: 1;
  visibility: visible;
}

.mx-lightbox-open {
  overflow: hidden;
}

.mx-lightbox-stage {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 4rem 5rem;
  cursor: pointer;
}

.mx-lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--mx-radius-md);
  box-shadow: var(--mx-shadow-xl);
  object-fit: contain;
  cursor: default;
}

.mx-lightbox-close,
.mx-lightbox-nav {
  position: absolute;
  z-index: 10001;
  border: 0;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
}

.mx-lightbox-close {
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  font-size: 2rem;
  line-height: 1;
}

.mx-lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 54px;
  height: 54px;
  font-size: 3rem;
  line-height: 0.8;
}

.mx-lightbox-prev {
  left: 1rem;
}

.mx-lightbox-next {
  right: 1rem;
}

.mx-lightbox-close:hover,
.mx-lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.25);
}

.mx-lightbox-footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  pointer-events: none;
}

.mx-lightbox-counter {
  font-weight: 800;
  font-size: 0.9rem;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}

.mx-lightbox-dots {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

.mx-lightbox-dot {
  width: 9px;
  height: 9px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.35);
  padding: 0;
  cursor: pointer;
}

.mx-lightbox-dot.active {
  width: 24px;
  background: var(--mx-highlight);
  border-color: var(--mx-highlight);
}

@media (max-width: 600px) {
  .mx-lightbox-stage {
    padding: 3rem 0.75rem 5rem;
  }

  .mx-lightbox-nav {
    width: 42px;
    height: 42px;
    font-size: 2.4rem;
  }

  .mx-lightbox-prev {
    left: 0.4rem;
  }

  .mx-lightbox-next {
    right: 0.4rem;
  }
}

/* ===== Expandable text block ===== */
.mx-expandable {
  position: relative;
}

.mx-expandable.collapsed .mx-expandable-inner {
  max-height: 120px;
  overflow: hidden;
}

.mx-expandable-fade {
  position: absolute;
  bottom: 30px;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to top, var(--mx-surface) 20%, transparent);
  pointer-events: none;
  display: none;
}

.mx-expandable.collapsed.has-overflow .mx-expandable-fade {
  display: block;
}

.mx-expand-btn {
  display: none;
  background: var(--mx-highlight);
  border: 1px solid var(--mx-ink);
  border-radius: var(--mx-radius-sm);
  color: var(--mx-ink);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  padding: 4px 12px;
  margin-top: 8px;
  box-shadow: var(--mx-shadow-sm);
}

.mx-expandable.has-overflow .mx-expand-btn {
  display: inline-block;
}

/* ===== Media & Attachments ===== */
.carousel-container {
  position: relative;
  width: auto;
  margin: 2rem -2rem;
}

.carousel-indicators {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
  pointer-events: none;
  z-index: 10;
}

.indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--mx-ink);
  transition: all 0.2s ease;
}

.indicator.active {
  background: var(--mx-highlight);
  width: 20px;
  border-radius: var(--mx-radius-xs);
}

.post-media,
.post-album,
.post-video {
  border-top: 2px solid var(--mx-ink);
  border-bottom: 2px solid var(--mx-ink);
  background: #000;
  overflow: hidden;
  position: relative;
}

.post-media {
  margin: 2rem -2rem;
}

.post-media img,
.post-album img,
.post-video img {
  width: 100%;
  max-height: 650px;
  object-fit: contain;
  display: block;
}

.post-album {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  gap: 0;
}

.post-album::-webkit-scrollbar {
  display: none;
}

.post-album > * {
  flex: 0 0 100%;
  scroll-snap-align: start;
  width: 100%;
}

.post-media-tile {
  margin: 0;
  padding: 0;
}

.post-video {
  display: block;
  text-decoration: none;
  color: #fff;
}

.post-video .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--mx-highlight);
  color: var(--mx-ink);
  padding: 0.75rem 1.5rem;
  font-weight: 900;
  border: 2px solid var(--mx-ink);
  border-radius: 1rem;
  box-shadow: var(--mx-shadow-md);
  pointer-events: none;
  white-space: nowrap;
}

.post-attachment {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: #f3f4f6;
  border: 1px solid var(--mx-ink);
  border-radius: 1rem;
  margin: 1rem 0;
  font-weight: 700;
}

.post-audio {
  flex-direction: column;
  align-items: stretch;
}

.post-audio audio {
  width: 100%;
  margin-top: 0.5rem;
}

@media (max-width: 600px) {
  .post-media,
  .post-album,
  .post-video {
    margin: 1.5rem -1.5rem;
  }
}

/* ===== Card styles from old base to prevent breakage ===== */
.post-card {
  border: 2px solid var(--mx-ink);
  border-radius: var(--mx-radius-lg);
  overflow: hidden;
  background: var(--mx-surface);
  box-shadow: var(--mx-shadow-lg);
  transition: all 0.2s;
}

.post-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--mx-shadow-xl);
}

.post-card > a {
  display: block;
  padding: 20px;
  color: inherit;
  text-decoration: none;
}

.post-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 8px;
  color: var(--mx-ink);
}

.post-card p {
  color: var(--mx-muted);
  font-size: 1rem;
  margin-bottom: 12px;
}

.post-card-channel {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--mx-accent);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.post-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--mx-muted);
  font-size: 0.875rem;
  padding-top: 12px;
  border-top: 1px solid var(--mx-ink);
  font-weight: 600;
}

.post-card.empty {
  padding: 2rem;
  text-align: center;
  color: var(--mx-muted);
  font-weight: 700;
}

/* ===== Global Home layout grid and sidebar styles ===== */
.home-layout {
  align-items: start;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(180px, 220px) minmax(0, 680px) minmax(180px, 220px);
  justify-content: center;
}

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

.home-right {
  position: sticky;
  top: calc(84px + env(safe-area-inset-top, 0px));
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  scrollbar-width: none;
}

.home-right::-webkit-scrollbar {
  display: none;
}

.home-topic-nav {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.home-side-card,
.mx-ad-slot {
  background: #fff;
  border: 1px solid var(--mx-line);
  border-radius: var(--mx-radius-lg);
  box-shadow: var(--mx-shadow-sm);
  padding: 1rem;
}

.home-topic-title,
.home-section-kicker,
.mx-ad-label {
  color: var(--mx-muted);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.topic-chip-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.topic-chip-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.topic-chip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.topic-chip-icon img {
  display: block;
  width: 18px;
  height: 18px;
}

.topic-chip {
  border: none;
  border-radius: var(--mx-radius-sm);
  color: var(--mx-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.topic-chip:hover,
.topic-chip.is-active {
  background: var(--mx-line);
  color: var(--mx-ink);
  border-color: transparent;
  text-decoration: none;
}

.topic-chip-count {
  color: var(--mx-muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.home-navigation-card {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  margin-top: 2rem;
  padding: 0 !important;
}

.home-navigation-title {
  font-size: 0.68rem;
  margin-bottom: 0.5rem;
  opacity: 0.6;
}

.nav-links-small {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.nav-link-small {
  color: var(--mx-muted);
  font-size: 0.78rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.2rem 0.4rem;
  border-radius: var(--mx-radius-xs);
  transition: background-color 0.15s ease, color 0.15s ease;
  opacity: 0.75;
}

.nav-link-small:hover {
  background: var(--mx-line);
  color: var(--mx-ink);
  opacity: 1;
}

.home-feed-container {
  min-width: 0;
}

.home-feed-container .mx-post-grid {
  align-items: stretch;
}

.home-feed-container .feed-card,
.home-feed-container .mx-ad-slot-in-feed {
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
}

@media (min-width: 981px) {
  .home-layout:not(:has(.home-right > *)) {
    grid-template-columns: minmax(180px, 220px) minmax(0, 680px);
    justify-content: center;
  }

  .home-layout:not(:has(.home-right > *)) .home-right {
    display: none;
  }
}

@media (max-width: 980px) {
  .home-navigation-card {
    display: none !important;
  }

  .home-layout {
    grid-template-columns: 1fr;
  }

  .home-left {
    background: var(--mx-bg);
    margin: 0 -1rem;
    max-width: 100vw;
    overflow: hidden;
    padding: 0.5rem 1rem;
    width: calc(100% + 2rem);
  }

  .home-topic-nav {
    border-radius: 0;
    box-shadow: none;
    margin: 0;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    padding: 0.5rem 0;
    -webkit-overflow-scrolling: touch;
  }

  .home-topic-title {
    display: none;
  }

  .topic-chip-list {
    flex-direction: row;
    min-width: max-content;
  }

  .topic-chip {
    background: #fff;
    white-space: nowrap;
  }

  .home-right {
    display: none;
  }
}

@media (max-width: 600px) {
  .home-left {
    margin-left: -0.75rem;
    margin-right: -0.75rem;
    max-width: 100vw;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
    width: calc(100% + 1.5rem);
  }
}