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

:root {
  --bg:        #ffffff;
  --card:      #ffffff;
  --border:    #e5e7eb;
  --sep:       #f3f4f6;
  --accent:    #5c98a0;
  --accent-bg: #eef5f6;
  --text:      #111111;
  --text-2:    #6b7280;
  --text-3:    #9ca3af;
  --hover:     #f0f4f5;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  overscroll-behavior-y: contain;
}

/* ── Header ──────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 20;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.header-row-1 {
  max-width: 1100px; margin: 0 auto;
  padding: 10px 20px;
  display: flex; align-items: center; gap: 8px;
}

.logo {
  flex-shrink: 0; font-size: 14px; font-weight: 800;
  letter-spacing: -0.02em; color: var(--text);
}

.search-wrap {
  flex: 1; position: relative; display: flex; align-items: center; min-width: 120px;
}

.search-input {
  background: #ffffff; border: 1px solid var(--border);
  color: var(--text); font-family: inherit; font-size: 12px;
  border-radius: 7px; padding: 5px 52px 5px 10px; outline: none;
  width: 100%; transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--accent); }
.search-input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search-input:not(:placeholder-shown) { border-color: var(--accent); }

.search-palette-hint {
  position: absolute; right: 8px;
  background: var(--sep); border: 1px solid var(--border); border-radius: 3px;
  font-size: 9px; color: var(--text-3); padding: 1px 5px;
  cursor: pointer; font-family: inherit;
  transition: background 0.1s;
}
.search-palette-hint:hover { background: var(--border); color: var(--text-2); }

/* ── Header Row 2 ────────────────────────────────── */
.header-row-2 {
  max-width: 1100px; margin: 0 auto;
  padding: 7px 20px 8px;
  display: flex; align-items: center; gap: 8px;
  border-top: 1px solid var(--sep);
}
.filter-sep { flex: 1; }
.header-stats {
  font-size: 11px; color: var(--text-3); white-space: nowrap;
  display: flex; align-items: center; gap: 4px;
}

/* ── Overflow dropdown ────────────────────────────── */
.overflow-wrap { position: relative; flex-shrink: 0; }
.overflow-btn {
  background: #ffffff; color: var(--text-2);
  border: 1px solid var(--border); border-radius: 7px;
  padding: 5px 10px; font-size: 13px; font-weight: 700;
  cursor: pointer; letter-spacing: 0.05em; font-family: inherit;
  transition: background 0.1s, color 0.1s;
}
.overflow-btn:hover { color: var(--text); }
.overflow-menu {
  display: none; position: absolute; right: 0; top: calc(100% + 6px);
  background: #ffffff; border: 1px solid var(--border);
  border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  min-width: 210px; z-index: 300; overflow: hidden;
  padding: 4px 0;
}
.overflow-menu.open { display: block; }
.overflow-item {
  display: flex; align-items: center; width: 100%;
  padding: 8px 14px; cursor: pointer; font-size: 13px;
  color: var(--text-2); background: none; border: none;
  font-family: inherit; text-align: left; gap: 8px;
  transition: background 0.1s; text-decoration: none;
}
.overflow-item:hover { background: var(--hover); color: var(--text); }
.overflow-sep { height: 1px; background: var(--sep); margin: 4px 0; }
.overflow-color-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; font-size: 13px; color: var(--text-2);
}
.overflow-color-row label { flex: 1; cursor: default; font-size: 13px; }
.accent-picker {
  width: 28px; height: 22px; border: 1px solid var(--border);
  border-radius: 4px; padding: 1px; cursor: pointer;
}
.overflow-reset {
  font-size: 11px; color: var(--text-3); background: none; border: none;
  cursor: pointer; padding: 0; font-family: inherit;
}
.overflow-reset:hover { color: var(--accent); }
.overflow-lang-item {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 6px 14px; cursor: pointer; font-size: 12px;
  color: var(--text-2); background: none; border: none;
  font-family: inherit; text-align: left;
  transition: background 0.1s;
}
.overflow-lang-item:hover { background: var(--hover); }
.overflow-lang-item.active { color: var(--accent); font-weight: 600; }
.overflow-username { font-size: 11px; color: var(--text-3); padding: 6px 14px 2px; }

/* ── Selects + inputs ────────────────────────────── */
select, input[type="number"] {
  background: var(--card); border: 1px solid var(--border);
  color: var(--text); font-family: inherit; font-size: 12px;
  border-radius: 7px; padding: 5px 9px; outline: none; cursor: pointer;
}
select:focus, input[type="number"]:focus { border-color: var(--accent); }
select:focus-visible, input[type="number"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input[type="number"] { width: 58px; cursor: text; }
input[type="range"] {
  width: 72px; cursor: pointer; accent-color: var(--accent);
  height: 4px; padding: 0; border: none; background: transparent; border-radius: 0;
  vertical-align: middle;
}
input[type="range"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
#min-score-val { font-size: 11px; color: var(--text-3); min-width: 12px; }
.score-label { font-size: 12px; color: var(--text-2); display: flex; align-items: center; gap: 5px; }

/* ── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: inherit; font-size: 12px; font-weight: 500;
  border-radius: 7px; padding: 5px 12px; border: none; cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: #4d8990; }
.btn-ghost { background: var(--card); color: var(--text-2); border: 1px solid var(--border); }
.btn-ghost:hover:not(:disabled) { color: var(--text); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-icon { padding: 5px 8px !important; }

/* ── Topic bar ───────────────────────────────────── */
.topic-bar {
  max-width: 1100px; margin: 0 auto;
  padding: 0 20px 10px;
  display: none; flex-wrap: wrap; gap: 5px;
}
.topic-bar.visible { display: flex; }
.pill {
  font-family: inherit; font-size: 11px; font-weight: 500;
  background: transparent; color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 20px; padding: 3px 10px; cursor: pointer;
  transition: all 0.15s; position: relative; overflow: hidden;
}
.pill::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  height: 2px; width: var(--bar, 0%);
  background: currentColor; opacity: 0.3;
}
.pill.active::after { opacity: 0.6; }
.pill:hover { color: var(--accent); border-color: var(--accent); }
.pill.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.pill:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Main ────────────────────────────────────────── */
main { max-width: 1100px; margin: 0 auto; padding: 16px 20px 40px; }

.state-error {
  display: none; border: 1px solid #fecaca; background: #fff5f5;
  border-radius: 8px; padding: 12px 16px; margin-bottom: 16px;
  font-size: 13px; color: #dc2626;
}
.state-empty {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 80px 0; gap: 10px; text-align: center;
}
.state-empty-icon { font-size: 32px; opacity: 0.25; }
.state-empty p { font-size: 13px; color: var(--text-3); }
.state-empty strong { color: var(--text-2); }

/* ── All-read ─────────────────────────────────────── */
.state-allread {
  flex-direction: column; align-items: center;
  justify-content: center; padding: 80px 0; gap: 12px; text-align: center;
}
.allread-icon { position: relative; width: 80px; height: 80px; margin-bottom: 8px; }
.allread-check {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 38px; font-weight: 600; color: var(--accent);
  background: var(--accent-bg); border-radius: 50%;
  animation: checkBounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.allread-ring {
  position: absolute; inset: -6px;
  border-radius: 50%; border: 2px solid var(--accent);
  opacity: 0; animation: ringExpand 1.4s 0.5s ease-out infinite;
}
.allread-ring-2 { animation-delay: 0.95s; }
.allread-title { font-size: 22px; font-weight: 600; color: var(--text); animation: fadeUp 0.5s 0.3s ease both; }
.allread-sub   { font-size: 13px; color: var(--text-3); animation: fadeUp 0.5s 0.45s ease both; }

@keyframes checkBounceIn { from { opacity: 0; transform: scale(0.2); } to { opacity: 1; transform: scale(1); } }
@keyframes ringExpand { from { transform: scale(1); opacity: 0.65; } to { transform: scale(1.9); opacity: 0; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes spin   { to { transform: rotate(360deg); } }

/* ── Feed list ───────────────────────────────────── */
#articles-grid { display: none; }
#articles-grid.visible { display: block; }

/* Date group */
.date-group { margin-bottom: 4px; }
.date-header {
  font-size: 10px; font-weight: 800; letter-spacing: 0.08em;
  color: var(--text); text-transform: uppercase;
  padding: 16px 0 8px;
  display: flex; align-items: baseline; gap: 10px;
}
.date-hr { flex: 1; height: 1px; background: var(--border); }
.day-read-btn {
  flex-shrink: 0; background: none; border: none;
  font-family: inherit; font-size: 10px; font-weight: 500;
  color: var(--text-3); cursor: pointer; padding: 0;
  letter-spacing: 0.04em; text-transform: uppercase;
  opacity: 0; transition: opacity 0.15s, color 0.12s;
}
.date-header:hover .day-read-btn { opacity: 1; }
.day-read-btn:hover { color: var(--accent); }
.day-read-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.day-open-btn {
  flex-shrink: 0; background: none; border: none;
  font-family: inherit; font-size: 10px; font-weight: 500;
  color: var(--text-3); cursor: pointer; padding: 0;
  letter-spacing: 0.04em; text-transform: uppercase;
  opacity: 0; transition: opacity 0.15s, color 0.12s;
}
.date-header:hover .day-open-btn { opacity: 1; }
.day-open-btn:hover { color: var(--accent); }

/* Read states */
.feed-row.read { opacity: 0.35; pointer-events: none; transition: opacity 0.3s; }
.feed-row.read .row-title { text-decoration: line-through; color: var(--text-3); pointer-events: auto; }
.feed-row.shown-read { opacity: 0.65; }
.feed-row.shown-read .row-title { text-decoration: line-through; color: var(--text-3); }
.badge-read { font-size: 10px; color: var(--text-3); flex-shrink: 0; white-space: nowrap; }

/* List container — pure list, no card */
.feed-list { border-top: 1px solid var(--sep); }

/* ── Mode A: two-line row ─────────────────────────── */
.feed-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--sep);
  cursor: pointer;
  transition: background 0.1s;
  animation: fadeIn 0.15s ease both;
}
.feed-row:last-child { border-bottom: none; }
.feed-row:hover { background: var(--hover); }

.row-line1 {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  margin-bottom: 3px;
}
.row-title {
  font-size: 14px; font-weight: 600; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  text-decoration: none; transition: color 0.12s; flex: 1; min-width: 0;
}
.row-title:hover { color: var(--accent); }
.row-score {
  flex-shrink: 0; font-size: 12px; font-weight: 700; white-space: nowrap;
  position: relative; cursor: default;
}
.row-score.hi { color: var(--accent); }
.row-score.lo { color: var(--text-3); }

/* Score tooltip */
.row-score[data-tooltip]:hover::after,
.compact-score[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute; top: 50%; transform: translateY(-50%);
  left: calc(100% + 10px);
  background: var(--text); color: #fff; font-size: 11px; font-weight: 400;
  letter-spacing: 0; text-transform: none; white-space: nowrap;
  border-radius: 6px; padding: 5px 10px; pointer-events: none; z-index: 30;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
}
.row-score[data-tooltip]:hover::before,
.compact-score[data-tooltip]:hover::before {
  content: '';
  position: absolute; top: 50%; transform: translateY(-50%);
  left: calc(100% + 6px);
  border: 4px solid transparent; border-right-color: var(--text);
  pointer-events: none; z-index: 30;
}

.row-line2 {
  font-size: 12px; color: var(--text-3);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.row-topic-tag { color: var(--accent); }

.row-actions {
  display: flex; gap: 4px; flex-shrink: 0; align-items: center;
}
.row-lu, .row-bookmark {
  display: inline-block; background: none; border: none;
  font-family: inherit; font-size: 11px; color: var(--text-3);
  cursor: pointer; padding: 2px 6px; border-radius: 4px;
  transition: color 0.12s, background 0.12s;
}
.row-lu:hover { color: #059669; background: #ecfdf5; }
.row-bookmark.bookmarked { color: #f59e0b; }
.row-bookmark:hover { color: #f59e0b; }
.row-bookmark:focus-visible, .row-lu:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Expanded detail (mode A) */
.feed-row-detail {
  display: none; padding: 4px 0 10px;
  font-size: 12px; color: var(--text-2); line-height: 1.6;
}
.feed-row-detail.open { display: block; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.tag-kw {
  font-size: 10px; color: var(--text-3);
  background: var(--sep); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 6px;
}

/* Keyboard focused row */
.feed-row.focused,
.compact-row.focused { background: var(--accent-bg); outline: 2px solid var(--accent); outline-offset: -2px; }

/* ── Mode C: compact expandable rows ─────────────── */
.compact-row {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--sep);
  cursor: pointer;
  transition: background 0.1s;
  animation: fadeIn 0.15s ease both;
}
.compact-row:hover { background: var(--hover); }
.compact-row.compact-expanded {
  border-left: 2px solid var(--accent);
  padding-left: 8px;
  background: var(--hover);
}

.compact-score {
  flex-shrink: 0; width: 18px; text-align: right;
  font-size: 10px; font-weight: 700;
  position: relative; cursor: default;
}
.compact-score.hi { color: var(--accent); }
.compact-score.lo { color: var(--text-3); }

.compact-feed {
  flex-shrink: 0; max-width: 110px;
  font-size: 10px; color: var(--text-3);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.compact-title {
  flex: 1; font-size: 13px; font-weight: 500; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
  text-decoration: none;
}
.compact-title:hover { color: var(--accent); }

.compact-time {
  flex-shrink: 0; font-size: 11px; color: var(--text-3); white-space: nowrap;
}

.compact-detail {
  display: none;
  padding: 4px 0 8px 26px;
  border-bottom: 1px solid var(--sep);
}
.compact-detail.open { display: block; animation: fadeIn 0.1s ease both; }
.compact-meta { font-size: 10px; color: var(--text-3); margin-bottom: 6px; }
.compact-actions { display: flex; gap: 6px; align-items: center; }
.btn-sm {
  font-family: inherit; font-size: 10px; font-weight: 500;
  border-radius: 4px; padding: 2px 8px; border: none; cursor: pointer;
  transition: background 0.1s; text-decoration: none; display: inline-flex; align-items: center;
}
.btn-sm-primary { background: var(--accent); color: #fff; }
.btn-sm-primary:hover { background: #4d8990; }
.btn-sm-ghost { background: #fff; color: var(--text-2); border: 1px solid var(--border); }
.btn-sm-ghost:hover { color: var(--text); }

/* Load more */
.load-more { display: none; justify-content: center; margin-top: 16px; }
.load-more.visible { display: flex; }

/* ── Toast ───────────────────────────────────────── */
#toast {
  position: fixed; top: 14px; right: 14px; z-index: 50;
  display: flex; align-items: center; gap: 9px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 9px; padding: 10px 14px;
  font-size: 12px; color: var(--text-2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
  max-width: 280px;
  transition: opacity 0.2s, transform 0.2s;
}
#toast.hidden { opacity: 0; transform: translateY(-6px); pointer-events: none; }
#toast.ok  { border-color: #a7f3d0; color: #059669; }
#toast.err { border-color: #fecaca; color: #dc2626; }
.spinner {
  flex-shrink: 0; width: 13px; height: 13px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}

/* ── Command Palette ─────────────────────────────── */
.palette-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 80px;
}
.palette-modal {
  background: #111; color: #fff;
  border-radius: 10px; width: 100%; max-width: 480px;
  overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.palette-search-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid #1f2937;
}
.palette-key-hint {
  font-size: 11px; color: #6b7280; flex-shrink: 0;
  background: #1f2937; border-radius: 4px; padding: 2px 6px;
}
.palette-input {
  flex: 1; background: transparent; border: none; outline: none;
  font-family: inherit; font-size: 13px; color: #fff; caret-color: #fff;
}
.palette-input::placeholder { color: #6b7280; }
.palette-list { padding: 4px 0; max-height: 320px; overflow-y: auto; }
.palette-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; cursor: pointer; font-size: 13px; color: #d1d5db;
  transition: background 0.08s; gap: 8px;
}
.palette-item:hover, .palette-item.focused { background: #1f2937; color: #fff; }
.palette-item-label { flex: 1; }
.palette-shortcut {
  font-size: 11px; color: #6b7280;
  background: #1f2937; border-radius: 4px; padding: 1px 6px; flex-shrink: 0;
}
.palette-item.focused .palette-shortcut { background: #374151; }

/* ── Modals (scoring + password) ─────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, 0.45);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal {
  background: var(--card); border-radius: 12px;
  width: 100%; max-width: 680px; max-height: 85vh;
  display: flex; flex-direction: column;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.modal-header h2 { font-size: 15px; font-weight: 600; }
.modal-close { padding: 4px 8px !important; }
.modal-body {
  overflow-y: auto; padding: 12px 20px; flex: 1;
  display: flex; flex-direction: column; gap: 8px;
}
.modal-footer {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-top: 1px solid var(--border); flex-shrink: 0;
}
.topic-row {
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; display: flex; flex-direction: column; gap: 6px;
  background: var(--bg);
}
.topic-row-header { display: flex; align-items: center; gap: 8px; }
.topic-name {
  flex: 1; background: var(--card); border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 9px; font-family: inherit; font-size: 13px; font-weight: 500;
  color: var(--text); outline: none;
}
.topic-name:focus { border-color: var(--accent); }
.topic-name:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.topic-weight {
  width: 70px; background: var(--card); border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 9px; font-family: inherit; font-size: 13px;
  color: var(--text); outline: none; text-align: center;
}
.topic-weight:focus { border-color: var(--accent); }
.topic-weight:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.topic-remove { padding: 4px 8px !important; color: var(--text-3) !important; flex-shrink: 0; }
.topic-remove:hover { color: #dc2626 !important; border-color: #fca5a5 !important; }
.topic-keywords {
  width: 100%; resize: vertical; min-height: 80px; max-height: 200px;
  background: var(--card); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 9px; font-family: 'Space Grotesk', monospace; font-size: 12px;
  color: var(--text-2); outline: none; line-height: 1.6;
}
.topic-keywords:focus { border-color: var(--accent); }
.topic-keywords:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.topic-keywords-label { font-size: 11px; color: var(--text-3); margin-bottom: 2px; }

/* ── Skip link ───────────────────────────────────── */
.skip-link {
  position: absolute; top: -100%; left: 16px;
  background: var(--accent); color: #fff;
  padding: 8px 16px; border-radius: 0 0 8px 8px;
  font-size: 13px; font-weight: 500; text-decoration: none;
  z-index: 999; transition: top 0.15s;
}
.skip-link:focus { top: 0; }

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 640px) {
  .header-row-1 { gap: 6px; }
  .header-row-2 { gap: 6px; flex-wrap: wrap; }
  .filter-sep { display: none; }
}

@media (max-width: 768px) {
  .pill { padding: 6px 12px; min-height: 44px; display: inline-flex; align-items: center; }
  .row-lu, .row-bookmark { padding: 10px 8px; min-width: 44px; min-height: 44px; }
  .btn { padding: 10px 16px; min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}