/* style.css — TootGrid */

/* ─── CSS Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── CSS Variables: Light Theme (default) ─────────────────────── */
:root {
  --bg:            #f3f4f6;
  --bg-alt:        #e5e7eb;
  --fg:            #111827;
  --fg-muted:      #6b7280;
  --accent:        #2563eb;
  --accent-soft:   rgba(37, 99, 235, 0.12);
  --card-bg:       #ffffff;
  --shadow-soft:   0 2px 8px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0,0,0,0.04);
  --shadow-hover:  0 8px 24px rgba(0, 0, 0, 0.13), 0 0 0 1px rgba(0,0,0,0.08), 0 0 20px 3px var(--accent-soft);
  --border-subtle: rgba(0, 0, 0, 0.07);
  --topbar-bg:     rgba(243, 244, 246, 0.82);
  --chip-bg:       rgba(0, 0, 0, 0.07);
  --chip-fg:       #374151;
  --btn-bg:        rgba(0, 0, 0, 0.06);
  --btn-bg-hover:  rgba(0, 0, 0, 0.12);
  --tag-bg:        var(--accent-soft);
  --tag-fg:        var(--accent);
  --dot-bg:        rgba(0, 0, 0, 0.20);
  --media-overlay: rgba(0, 0, 0, 0.55);
}

/* ─── CSS Variables: Dark Theme ────────────────────────────────── */
[data-theme="dark"] {
  --bg:            #0f1117;
  --bg-alt:        #1a1d27;
  --fg:            #e5e7eb;
  --fg-muted:      #9ca3af;
  --accent:        #60a5fa;
  --accent-soft:   rgba(96, 165, 250, 0.25);
  --card-bg:       #1e2130;
  --shadow-soft:   0 2px 8px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-hover:  0 8px 28px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255,255,255,0.13), 0 0 18px 2px var(--accent-soft);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --topbar-bg:     rgba(15, 17, 23, 0.85);
  --chip-bg:       rgba(255, 255, 255, 0.08);
  --chip-fg:       #d1d5db;
  --btn-bg:        rgba(255, 255, 255, 0.07);
  --btn-bg-hover:  rgba(255, 255, 255, 0.13);
  --tag-bg:        var(--accent-soft);
  --tag-fg:        var(--accent);
  --dot-bg:        rgba(255, 255, 255, 0.25);
  --media-overlay: rgba(0, 0, 0, 0.60);
}

/* ─── Body & Global ─────────────────────────────────────────────── */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, var(--bg-alt) 0, var(--bg) 50%);
  background-attachment: fixed;
  color: var(--fg);
  min-height: 100vh;
  transition: background 0.25s ease, color 0.25s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ─── App Shell ─────────────────────────────────────────────────── */
.app-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem 4rem;
}

/* ─── Topbar ────────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--topbar-bg);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.55rem 1rem;
  margin: 0 -1rem 0;
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  max-width: 1280px;
  margin: 0 auto;
  flex-wrap: wrap;
}

/* Title */
.title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
}

.title-logo {
  height: 1.5rem;
  width: auto;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

#appTitle {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fg);
  white-space: nowrap;
}

/* Spacer to push actions right */
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-left: auto;
}

/* Tighten gap between refresh button and countdown chip — they read as a pair */
#refreshBtn + #refreshCountdown {
  margin-left: -0.2rem;
}

/* Fixed-width digits so the chip never wobbles as MM:SS changes */
#refreshCountdown {
  font-variant-numeric: tabular-nums;
  min-width: 3.6rem;
  justify-content: center;
}

/* Chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  height: 1.75rem;
  padding: 0 0.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--chip-bg);
  color: var(--chip-fg);
  white-space: nowrap;
  transition: background 0.2s, opacity 0.3s;
}

.chip-live {
  background: rgba(34, 197, 94, 0.18);
  color: #16a34a;
}
[data-theme="dark"] .chip-live {
  background: rgba(34, 197, 94, 0.22);
  color: #4ade80;
}

.chip-error {
  background: rgba(239, 68, 68, 0.16);
  color: #dc2626;
}
[data-theme="dark"] .chip-error {
  background: rgba(239, 68, 68, 0.22);
  color: #f87171;
}

.chip-fetching {
  background: var(--accent-soft);
  color: var(--accent);
}

.chip-ghost {
  background: var(--chip-bg);
  color: var(--fg-muted);
  font-weight: 500;
}

.chip-hidden {
  visibility: hidden;
  pointer-events: none;
}

/* Topbar Buttons */
.topbar-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  height: 1.75rem;
  padding: 0 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--fg);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
}
.topbar-actions button:hover {
  background: var(--btn-bg-hover);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.topbar-actions button:active {
  transform: scale(0.97);
}

.icon {
  font-size: 1rem;
  line-height: 1;
}

/* Topbar Link */
.topbar-link {
  font-size: 0.72rem;
  color: var(--fg-muted);
  white-space: nowrap;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: color 0.15s;
}
.topbar-link:hover {
  color: var(--fg);
  text-decoration: none;
}

/* ─── Info Row ──────────────────────────────────────────────────── */
.info-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0;
  font-size: 0.8rem;
  color: var(--fg-muted);
  min-height: 2.2rem;
}

.grow {
  flex: 1;
}

#postCount {
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
}

/* ─── Feed Grid ─────────────────────────────────────────────────── */
.feed-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.1rem;
  align-items: start;
}

/* List layout override */
body.layout-list .feed-grid {
  grid-template-columns: minmax(0, 1fr);
  max-width: 680px;
  margin: 0 auto;
}

/* ─── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border-radius: 1rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: box-shadow 0.22s ease, transform 0.22s ease;
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-inner {
  padding: 1rem 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

/* Card Header */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-user-block {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}

.card-avatar {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  border: 2px solid var(--border-subtle);
  flex-shrink: 0;
  object-fit: cover;
  background: var(--bg-alt);
}

.card-user-text {
  min-width: 0;
}

.card-user {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-instance {
  font-size: 0.72rem;
  color: var(--fg-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-meta {
  font-size: 0.7rem;
  color: var(--fg-muted);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 0.1rem;
}

/* Card Content */
.card-content {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--fg);
  overflow-wrap: break-word;
  word-break: break-word;
}

.card-content p {
  margin: 0 0 0.4em;
}
.card-content p:last-child {
  margin-bottom: 0;
}
.card-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.card-content a:hover {
  opacity: 0.8;
}

/* Hashtag / mention styling from Mastodon HTML */
.card-content .mention,
.card-content .hashtag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-fg);
  border-radius: 4px;
  padding: 0 3px;
  font-size: 0.85em;
  text-decoration: none;
}

/* ─── Media Carousel ─────────────────────────────────────────────── */
.card-media {
  position: relative;
  border-radius: 0.8rem;
  overflow: hidden;
  background: #111;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}

.card-media-track {
  display: block;
  line-height: 0;
}

.card-media-img {
  display: none;
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: inherit;
  cursor: pointer;
}
.card-media-img.is-active {
  display: block;
}

/* Nav arrows */
.media-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--media-overlay);
  color: #fff;
  border: none;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.15s, transform 0.15s;
  padding: 0;
}
.media-nav:hover {
  background: rgba(0, 0, 0, 0.78);
  transform: translateY(-50%) scale(1.08);
}
.media-nav-prev {
  left: 0.4rem;
}
.media-nav-next {
  right: 0.4rem;
}

/* Counter */
.media-counter {
  position: absolute;
  bottom: 1.8rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--media-overlay);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  pointer-events: none;
  white-space: nowrap;
  z-index: 10;
}

/* Dots */
.media-dots {
  position: absolute;
  bottom: 0.45rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.3rem;
  z-index: 10;
}

.media-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  border: none;
  background: var(--dot-bg);
  cursor: pointer;
  padding: 0;
  transition: background 0.15s, transform 0.15s;
}
.media-dot.is-active {
  background: var(--accent);
  transform: scale(1.25);
}

/* ─── Card Stats & Footer ────────────────────────────────────────── */
.card-stats {
  display: flex;
  gap: 0.8rem;
  font-size: 0.78rem;
  color: var(--fg-muted);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.card-footer {
  font-size: 0.75rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.55rem;
  margin-top: 0.1rem;
}

.card-footer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.15s;
}
.card-footer a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ─── Empty State ───────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  color: var(--fg-muted);
  margin-top: 4rem;
  font-size: 1rem;
  padding: 2rem;
  border: 2px dashed var(--border-subtle);
  border-radius: 1rem;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Skeleton Loader ────────────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position:  600px 0; }
}

.skeleton {
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
  padding: 1rem;
}

.skeleton-line {
  height: 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
  background: linear-gradient(
    90deg,
    var(--bg-alt) 25%,
    var(--bg) 50%,
    var(--bg-alt) 75%
  );
  background-size: 600px 100%;
  animation: shimmer 1.4s infinite linear;
}

.skeleton-line.short  { width: 40%; }
.skeleton-line.medium { width: 65%; }
.skeleton-line.full   { width: 100%; }
.skeleton-line.tall   { height: 1rem; }
.skeleton-avatar {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: linear-gradient(
    90deg,
    var(--bg-alt) 25%,
    var(--bg) 50%,
    var(--bg-alt) 75%
  );
  background-size: 600px 100%;
  animation: shimmer 1.4s infinite linear;
  flex-shrink: 0;
}

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .topbar-inner {
    gap: 0.4rem;
  }

  #appTitle {
    font-size: 0.9rem;
  }

  .topbar-actions {
    gap: 0.35rem;
  }

  .topbar-actions button span:not(.icon) {
    display: none;
  }

  .topbar-link {
    display: none;
  }

  .feed-grid {
    grid-template-columns: 1fr;
  }

  .card-media-img {
    max-height: 180px;
  }

  .info-row {
    font-size: 0.75rem;
  }
}

@media (max-width: 400px) {
  .chip-ghost {
    display: none;
  }
}