/* ===== GitFeed — GitHub Dark Theme con acentos verdes ===== */
:root {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --bg-hover: #1c2330;
  --border: #30363d;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --text-bright: #f0f6fc;
  --accent: #609941;
  --accent-hover: #73b34a;
  --accent-dim: #60994133;
  --danger: #f85149;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 24px rgba(96,153,65,0.15);
  --header-h: 120px;
  --mode-tabs-h: 46px;
  --sidebar-w: 340px;
  --transition: 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== HEADER ===== */
#app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 16px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-bright);
  cursor: pointer;
  user-select: none;
}
.logo svg { color: var(--accent); }

.header-actions { display: flex; gap: 8px; }

.btn-icon {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-icon:hover { background: var(--bg-hover); border-color: var(--accent); color: var(--accent); }

.fav-count {
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 1px 7px;
  min-width: 20px;
  text-align: center;
}

.header-filters {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.period-group { display: flex; gap: 4px; background: var(--bg-elevated); border-radius: 10px; padding: 3px; }

.chip {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}
.chip:hover { color: var(--text-bright); }
.chip.active { background: var(--accent); color: #fff; }

.select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}
.select:hover, .select:focus { border-color: var(--accent); }

.search-box {
  flex: 1;
  min-width: 120px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  transition: var(--transition);
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.search-icon { color: var(--text-muted); flex-shrink: 0; }
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
}
.search-box input::placeholder { color: var(--text-muted); }

/* ===== MODE TABS (sticky) ===== */
#mode-tabs {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.mode-tabs-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 16px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.mode-tabs-inner::-webkit-scrollbar { display: none; }

.mode-tab {
  flex-shrink: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 7px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}
.mode-tab:hover {
  color: var(--text-bright);
  border-color: var(--accent);
}
.mode-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ===== LAYOUT ===== */
.layout {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  gap: 20px;
  padding: 20px 16px;
}

.feed {
  flex: 1;
  min-width: 0;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.card-owner { flex: 1; min-width: 0; }
.owner-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.owner-link:hover { color: var(--accent); text-decoration: none; }
.repo-date { font-size: 0.75rem; color: var(--text-muted); }

.fav-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: var(--transition);
}
.fav-btn:hover { color: var(--accent); background: var(--bg-hover); }
.fav-btn.active .fav-icon { color: #ffd33d; filter: drop-shadow(0 0 4px rgba(255,211,61,0.4)); }

.card-body { padding: 14px 16px; }

.repo-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  display: inline-block;
  margin-bottom: 6px;
}
.repo-name:hover { color: var(--accent); text-decoration: none; }

.repo-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.repo-topics { display: flex; flex-wrap: wrap; gap: 6px; }
.topic-tag {
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--accent-dim);
  transition: var(--transition);
}
.topic-tag:hover { background: var(--accent); color: #fff; }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.15);
}

.repo-stats { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.stat { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.stat b { color: var(--text); font-weight: 600; }

.lang-badge { gap: 6px; }
.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.lang-name { font-weight: 600; color: var(--text); }

.repo-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
.repo-link:hover { color: var(--accent-hover); }

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--header-h) + var(--mode-tabs-h) + 20px);
  max-height: calc(100vh - var(--header-h) - var(--mode-tabs-h) - 40px);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.sidebar-header h2 { font-size: 1rem; font-weight: 700; color: var(--text-bright); }

#sidebar-close { display: none; }

.sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

.empty-fav { color: var(--text-muted); font-size: 0.85rem; padding: 20px 10px; text-align: center; }

.fav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: var(--transition);
}
.fav-item:hover { background: var(--bg-hover); }
.fav-item img { width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; }
.fav-item-info { flex: 1; min-width: 0; }
.fav-item-name { font-size: 0.82rem; font-weight: 600; color: var(--text-bright); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fav-item-meta { font-size: 0.72rem; color: var(--text-muted); }
.fav-remove {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  font-size: 1.1rem;
  transition: var(--transition);
}
.fav-remove:hover { color: var(--danger); background: rgba(248,81,73,0.1); }

/* ===== LOADING ===== */
.loading { text-align: center; padding: 40px; color: var(--text-muted); }
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 12px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.load-more { text-align: center; padding: 20px; color: var(--text-muted); font-size: 0.85rem; }

/* ===== OVERLAY (mobile) ===== */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.2s;
}
.overlay.active { display: block; opacity: 1; }

#sentinel { height: 1px; }

/* ===== ANIMACIÓN DE ENTRADA ===== */
.card {
  animation: fadeInUp 0.35s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header-filters { gap: 8px; }
  .period-group { order: 1; }
  .select { order: 2; }
  .search-box { order: 3; width: 100%; flex-basis: 100%; }

  .sidebar {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    max-height: 100vh;
    width: 85%;
    max-width: var(--sidebar-w);
    border-radius: 0;
    z-index: 100;
    transform: translateX(100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open { transform: translateX(0); }
  #sidebar-close { display: flex; }

  .layout { padding: 12px; gap: 0; }

  .card-header { padding: 10px 12px; }
  .card-body { padding: 12px; }
  .card-footer { padding: 8px 12px; flex-wrap: wrap; gap: 8px; }

  .repo-stats { gap: 10px; }
  .stat { font-size: 0.75rem; }
}

@media (max-width: 480px) {
  .logo span { font-size: 1.1rem; }
  .chip { padding: 5px 10px; font-size: 0.8rem; }
  .header-inner { padding: 8px 10px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }