/* ── bookchallenge styles ───────────────────────────────────────────────────
   Page-specific styles for the Book Challenge experience.
   shared.css (loaded first) provides design tokens, the reset, base body /
   link styles, and the shared navbar; this file only adds the layout and
   components unique to this page.
   ──────────────────────────────────────────────────────────────────────────── */

:root {
  --danger:  #e05c6e;  /* Destructive-action red (delete buttons) */
  --success: #4caf82;  /* Progress-bar fill / positive status     */
  --warn:    #e0b25c;  /* Status banner warning colour             */
}

/* ── Layout ─────────────────────────────────────────────────────────────────── */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.nav-back {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-back:hover { color: var(--text); }

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1.5rem 4rem;
  gap: 2rem;
}
.page-header { text-align: center; }
.page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 0.4rem;
}
.page-header p { color: var(--text-muted); font-size: 1rem; }
.accent { color: var(--accent-lt); }

/* ── Status banner (Firebase connection / config state) ────────────────────── */
.banner {
  width: 100%;
  max-width: 900px;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  text-align: center;
  display: none;
}
.banner.visible { display: block; }
.banner.info {
  background: rgba(124,106,247,.12);
  border: 1px solid rgba(124,106,247,.3);
  color: var(--accent-lt);
}
.banner.warn {
  background: rgba(224,178,92,.12);
  border: 1px solid rgba(224,178,92,.35);
  color: var(--warn);
}
.banner.error {
  background: rgba(224,92,110,.12);
  border: 1px solid rgba(224,92,110,.35);
  color: var(--danger);
}

/* ── Panels (shared look with other experiences) ───────────────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  width: 100%;
  max-width: 900px;
}
#log-panel { max-width: 1100px; }
.panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-lt);
  margin-bottom: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.badge {
  background: rgba(124,106,247,.2);
  border: 1px solid rgba(124,106,247,.35);
  border-radius: 20px;
  font-size: 0.72rem;
  padding: 0.1rem 0.55rem;
  color: var(--accent-lt);
  font-weight: 700;
}
.panel-note {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 1rem;
}
.toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1.1rem;
  cursor: pointer;
}
.toggle-row input { cursor: pointer; }

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.log-entry-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: flex-end;
  margin-bottom: 1.25rem;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1 1 160px;
  min-width: 140px;
}
.form-field-sm { flex: 0 1 120px; min-width: 100px; }
.form-field-wide { flex: 2 1 220px; }
.form-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}
.form-input {
  padding: 0.55rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
  font-family: inherit;
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: var(--text-muted); }
select.form-input { cursor: pointer; }

#reader-submit, #log-entry-submit { flex: 0 0 auto; white-space: nowrap; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  border: none;
  font-family: inherit;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-lt); color: #fff; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-icon {
  width: 1.8rem;
  height: 1.8rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 8px;
}
.btn-icon.btn-icon-danger:hover { border-color: var(--danger); color: var(--danger); background: rgba(224,92,110,.12); }

/* ── Scoreboard ─────────────────────────────────────────────────────────────── */
#scoreboard-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.score-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--border);
}
.score-row:last-child { border-bottom: none; padding-bottom: 0; }
.score-row-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}
.score-rank {
  color: var(--text-muted);
  font-weight: 700;
  margin-right: 0.4rem;
}
.score-name { font-weight: 700; }
.score-goal {
  color: var(--text-muted);
  font-size: 0.82rem;
  white-space: nowrap;
}
.score-metric {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.score-metric-label {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.78rem;
}
.score-metric-label .metric-name { font-weight: 700; color: var(--text); }
.progress-track {
  width: 100%;
  height: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-lt));
  border-radius: 20px 0 0 20px;
  transition: width 0.3s ease;
}
.progress-fill.adjusted { background: linear-gradient(90deg, var(--accent), var(--success)); }
.progress-fill.complete { border-radius: 20px; }

/* ── Table (shared look with other experiences) ────────────────────────────── */
.table-scroll { width: 100%; overflow-x: auto; }
.log-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.log-table th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 700;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.log-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.log-table tbody tr:hover { background: rgba(255,255,255,.03); }
.log-table tbody tr:last-child td { border-bottom: none; }
.col-actions { width: 1%; text-align: right; white-space: nowrap; }
.cell-name { font-weight: 700; color: var(--text); }
.cell-pill {
  display: inline-block;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0.1rem 0.55rem;
  font-size: 0.78rem;
  color: var(--accent-lt);
  font-weight: 700;
  white-space: nowrap;
}
.cell-date { color: var(--text-muted); font-size: 0.8rem; white-space: nowrap; }

/* ── Empty state ────────────────────────────────────────────────────────────── */
.empty-state {
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.empty-icon { font-size: 2rem; margin-bottom: 0.5rem; }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  main { padding: 2rem 1rem 3rem; }
  .panel { padding: 1.25rem 1.25rem; }
  .form-field, .form-field-sm, .form-field-wide { flex: 1 1 100%; min-width: 0; }
  #reader-submit, #log-entry-submit { width: 100%; }

  .log-table thead { display: none; }
  .log-table, .log-table tbody, .log-table tr, .log-table td { display: block; width: 100%; }
  .log-table tr {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.9rem;
    background: var(--surface2);
  }
  .log-table td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.4rem 0;
    border-bottom: 1px dashed var(--border);
    text-align: right;
  }
  .log-table td:last-child { border-bottom: none; }
  .log-table td::before {
    content: attr(data-label);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    font-weight: 700;
    text-align: left;
  }
  .log-table td.col-actions { justify-content: flex-end; }
  .log-table td.col-actions::before { content: none; }
}