/* -------------------------------------------------------
   CSS custom properties — light (default) & dark
------------------------------------------------------- */
:root {
  --bg:        #f7f9fa;
  --card-bg:   #ffffff;
  --border:    #e1e8ed;
  --text:      #14171a;
  --muted:     #536471;
  --nav-bg:    #ffffff;
  --cat-bg:    #e8f5fe;
  --cat-color: #1d9bf0;
  --link:      #1d9bf0;
}
[data-bs-theme="dark"] {
  --bg:        #15202b;
  --card-bg:   #192734;
  --border:    #38444d;
  --text:      #d9d9d9;
  --muted:     #8899a6;
  --nav-bg:    #192734;
  --cat-bg:    #1e3a5f;
  --cat-color: #6cb8f5;
  --link:      #6cb8f5;
}

/* -------------------------------------------------------
   Base & typography
------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }

/* -------------------------------------------------------
   Navbar
------------------------------------------------------- */
#main-nav {
  background: var(--nav-bg);
  border-bottom: 1px solid #e1e8ed;
  padding: 0;
}

#main-nav .navbar-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  padding: .6rem 1rem;
}

.brand-logo {
  height: 38px;
  width: auto;
  display: inline-block;
  /* dark on white/light background */
  filter: none;
}
[data-bs-theme="dark"] .brand-logo {
  filter: invert(1);
}
/* Admin navbar is always dark, so always invert */
.brand-logo-admin {
  filter: invert(1);
}

/* -------------------------------------------------------
   Custom selects  (.cs base + .cs--nav / .cs--content variants)
------------------------------------------------------- */
.cs {
  appearance: none;
  -webkit-appearance: none;
  font-family: inherit;
  font-weight: 500;
  border-radius: 9999px;
  cursor: pointer;
  padding: .3rem 2rem .3rem .85rem;
  background-repeat: no-repeat;
  background-position: right .65rem center;
  background-size: .95rem;
  transition: border-color .15s, background-color .15s;
}

/* Navbar variant — always dark background */
.cs--nav {
  font-size: .9rem;
  color: #fff;
  background-color: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.25);
  max-width: 180px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23ffffff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3 6 8 11 13 6'/%3E%3C/svg%3E");
}
.cs--nav option { background: #14171a; color: #fff; }
.cs--nav:focus  { outline: none; border-color: rgba(255,255,255,.55); }
.cs--nav:hover  { background-color: rgba(255,255,255,.18); }

/* Content-area variant — respects light/dark theme */
.cs--content {
  font-size: .82rem;
  color: var(--text);
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23536471' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3 6 8 11 13 6'/%3E%3C/svg%3E");
}
.cs--content:hover { border-color: var(--muted); }
.cs--content:focus { outline: none; border-color: var(--link); }
[data-bs-theme="dark"] .cs--content {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%238899a6' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3 6 8 11 13 6'/%3E%3C/svg%3E");
}
[data-bs-theme="dark"] .cs--content option { background: var(--card-bg); }

/* -------------------------------------------------------
   Refresh button
------------------------------------------------------- */
.refresh-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, color .15s, border-color .15s, transform .3s;
  padding: 0;
}
.refresh-btn:hover {
  background: var(--cat-bg);
  color: var(--link);
  border-color: var(--link);
}
.refresh-btn:active { transform: rotate(360deg); }
.refresh-btn:disabled { opacity: .5; cursor: default; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* -------------------------------------------------------
   Category bar
------------------------------------------------------- */
#cat-bar {
  border-top: 1px solid var(--border);
  scrollbar-width: none;
  margin-top: 6px;
}
#cat-bar::-webkit-scrollbar { display: none; }

.cat-pill {
  display: inline-block;
  padding: .3rem .85rem;
  border-radius: 9999px;
  font-size: .9rem;
  font-weight: 500;
  white-space: nowrap;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  transition: background .15s, color .15s;
}
.cat-pill:hover { background: var(--cat-bg); color: var(--cat-color); border-color: var(--link); }
.cat-pill.active { background: var(--link); color: #fff; border-color: var(--link); }

/* -------------------------------------------------------
   New articles banner
------------------------------------------------------- */
.new-articles-banner {
  position: sticky;
  top: 0;
  z-index: 100;
  text-align: center;
  padding: .4rem 1rem;
  background: var(--link);
}

.new-articles-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  letter-spacing: .01em;
}
.new-articles-btn:hover { text-decoration: underline; }

/* -------------------------------------------------------
   Timeline
------------------------------------------------------- */
.timeline {
  display: flex;
  flex-direction: column;
}

.tweet-card {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1rem .75rem;
  transition: background .1s;
}
.tweet-card:hover { background: var(--bg); }
.tweet-card:first-child { border-top: 1px solid var(--border); }

/* Source line */
.tweet-meta {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .88rem;
  color: var(--muted);
  margin-bottom: .35rem;
  flex-wrap: wrap;
}

.feed-favicon {
  width: 32px;
  height: 32px;
  border-radius: 0;
  object-fit: contain;
}

.feed-name {
  font-weight: 600;
  color: var(--muted);
}

.cat-badge {
  font-size: .78rem;
  background: var(--cat-bg);
  color: var(--cat-color);
  border-radius: 4px;
  padding: .1rem .4rem;
  font-weight: 500;
}

.tweet-time {
  margin-left: auto;
  font-size: .82rem;
  color: var(--muted);
}

/* Title */
.tweet-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 .4rem;
}
.tweet-title a { color: var(--text); }
.tweet-title a:hover { color: var(--link); }

/* Body */
.tweet-body {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 .5rem;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Actions */
.tweet-actions { display: flex; justify-content: flex-end; }

.read-link {
  font-size: .9rem;
  color: var(--link);
  font-weight: 500;
}
.read-link:hover { text-decoration: underline; }

.share-wa {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .9rem;
  font-weight: 500;
  color: #25d366;
  transition: opacity .15s;
}
.share-wa:hover { opacity: .8; }

/* -------------------------------------------------------
   Card media (image in wall)
------------------------------------------------------- */
.card-media {
  margin: .5rem 0 .6rem;
  border-radius: 12px;
  overflow: hidden;
  background: var(--border);
  max-height: 280px;
}
.card-media-img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 280px;
  object-fit: cover;
  transition: opacity .2s;
}
.card-media-img:hover { opacity: .92; }

/* -------------------------------------------------------
   Media player (audio / video)
------------------------------------------------------- */
.card-media-player {
  margin: .5rem 0 .6rem;
}

.media-play-btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  background: var(--cat-bg);
  color: var(--cat-color);
  border: 1px solid var(--cat-color);
  border-radius: 20px;
  padding: .35rem .9rem;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, opacity .15s;
}
.media-play-btn:hover { opacity: .85; }

.detail-media-player {
  margin-bottom: 1rem;
}
.detail-media-player audio {
  width: 100%;
  border-radius: 8px;
}

/* -------------------------------------------------------
   Detail view
------------------------------------------------------- */
.detail-card { border-bottom: none !important; }

.detail-title {
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.3;
  margin: .5rem 0 1rem;
}

.detail-image {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
  max-height: 360px;
  object-fit: cover;
}

.detail-body {
  font-size: .95rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* -------------------------------------------------------
   Empty state
------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}
.empty-state p:first-child { font-weight: 600; font-size: 1.05rem; }

/* -------------------------------------------------------
   Sort bar
------------------------------------------------------- */
.sort-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: .6rem .85rem;
  margin: .5rem 0 .75rem;
}

/* -------------------------------------------------------
   Responsive tweaks
------------------------------------------------------- */
@media (max-width: 639px) {
  .brand-text { display: none; }
}
@media (max-width: 511px) {
  .tweet-time {
    flex-basis: 100%;
    margin-left: 38px; /* align under feed-name, past favicon+gap */
    margin-top: .1rem;
  }
}

@media (min-width: 480px) {
  .tweet-card { padding: 1.1rem 1.25rem .85rem; }
  .tweet-title { font-size: 1.15rem; }
}

@media (min-width: 768px) {
  .tweet-card {
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }
  .tweet-card:first-child {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
  }
  .tweet-card:last-of-type {
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    border-bottom: 1px solid var(--border);
  }
  .pagination-nav {
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
  }
}