/* ═══════════════════════════════════════════════════════════════════
   MARKS — css/modules/marks.css
   ═══════════════════════════════════════════════════════════════════
   Marks entry grid (with the custom 3-choice validation popup, never
   a native prompt), the marks database browser, and the phase tabs
   shared by both (Pre-Midterm / Post-Midterm / Annual). Accent color
   is the academics violet (Section 2.4).
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --academics-accent: #8b5cf6;
}

/* ── Toolbar shared by marks entry + database ── */
.marks-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 18px;
  background: var(--card-bg, rgba(255, 255, 255, 0.03));
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius, 10px);
  margin-bottom: 16px;
}

.marks-toolbar__select {
  min-width: 160px;
}

.marks-toolbar__spacer {
  flex: 1;
}

.marks-toolbar__info {
  font-size: 0.82rem;
  color: var(--card-text-muted, #94a3b8);
}
.marks-toolbar__info strong {
  color: var(--card-text, #e2e8f0);
}

/* ── Phase tabs (Pre-Midterm / Post-Midterm / Annual) ── */
.phase-tabs {
  display: flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  padding: 4px;
}

.phase-tab {
  padding: 7px 16px;
  border-radius: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--card-text-muted, #475569);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.phase-tab:hover {
  color: var(--card-text, #e2e8f0);
}

.phase-tab.active {
  background: var(--academics-accent);
  color: var(--text-inverse, #f1f5f9);
  box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

/* ── Assessment lock indicator ── */
.assessment-lock-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 99px;
}

.assessment-lock-badge.locked {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
}

.assessment-lock-badge.open {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}

.assessment-lock-badge svg {
  width: 11px;
  height: 11px;
}

/* ── Marks entry grid ── */
.marks-entry-wrap {
  overflow-x: auto;
  border-radius: var(--radius, 10px);
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.07));
}

.marks-entry-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.marks-entry-table thead th {
  background: rgba(139, 92, 246, 0.08);
  color: var(--card-text, #e2e8f0);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 10px 12px;
  text-align: left;
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid var(--card-border, rgba(255, 255, 255, 0.07));
}

.marks-entry-table thead th.col-num {
  text-align: center;
  width: 90px;
}

.marks-entry-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--card-border, rgba(255, 255, 255, 0.05));
  font-size: 0.85rem;
  color: var(--card-text, #e2e8f0);
}

.marks-entry-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.marks-entry-table td.student-name-cell {
  font-weight: 600;
  white-space: nowrap;
}

.marks-entry-table td.student-num-cell {
  color: var(--card-text-muted, #475569);
  font-size: 0.75rem;
}

.marks-input {
  width: 64px;
  padding: 6px 4px;
  text-align: center;
  border-radius: 6px;
  border: 1.5px solid var(--card-border, rgba(255, 255, 255, 0.09));
  background: rgba(255, 255, 255, 0.02);
  color: var(--card-text, #e2e8f0);
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transition: all 0.15s;
}

.marks-input:focus {
  outline: none;
  border-color: var(--academics-accent);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.marks-input.mark-pass {
  border-color: rgba(16, 185, 129, 0.4);
  color: var(--success);
}

.marks-input.mark-fail {
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--danger);
}

.marks-input.mark-borderline {
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--warning);
}

.marks-input.mark-empty {
  border-style: dashed;
}

.marks-input.mark-saving {
  opacity: 0.5;
  pointer-events: none;
}

/* ── 3-choice inline validation popup (replaces native prompt/confirm) ── */
.mark-validation-popup {
  position: absolute;
  z-index: 60;
  min-width: 220px;
  background: var(--dropdown-bg, #0f1f33);
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.09));
  border-radius: 10px;
  box-shadow: var(--shadow, 0 8px 32px rgba(0, 0, 0, 0.3));
  padding: 10px;
  animation: markPopupIn 0.15s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes markPopupIn {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.mark-validation-popup__msg {
  font-size: 0.75rem;
  color: var(--card-text-muted, #475569);
  margin-bottom: 8px;
  line-height: 1.4;
}

.mark-validation-popup__msg strong {
  color: var(--warning);
}

.mark-validation-popup__choices {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mark-validation-popup__choice {
  text-align: left;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  color: var(--card-text, #e2e8f0);
  background: rgba(255, 255, 255, 0.04);
}

.mark-validation-popup__choice:hover {
  background: rgba(139, 92, 246, 0.15);
}

.mark-validation-popup__choice.primary {
  background: var(--academics-accent);
  color: var(--text-inverse, #f1f5f9);
}

.mark-validation-popup__choice.primary:hover {
  background: #7c3aed;
}

.mark-validation-popup__choice.cancel {
  color: var(--card-text-muted, #475569);
}

/* ── Batch save bar (sticky bottom while entering marks) ── */
.marks-save-bar {
  position: sticky;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  background: var(--dropdown-bg, #0f1f33);
  border: 1px solid var(--card-border, rgba(255, 255, 255, 0.09));
  border-radius: var(--radius, 10px);
  margin-top: 12px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
}

.marks-save-bar__status {
  font-size: 0.8rem;
  color: var(--card-text-muted, #475569);
  display: flex;
  align-items: center;
  gap: 8px;
}

.marks-save-bar__status.dirty {
  color: var(--warning);
}

.marks-save-bar__status.saved {
  color: var(--success);
}

/* ── Marks database browser ── */
.marks-db-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.marks-db-table td.grade-cell {
  font-weight: 700;
  text-align: center;
}

.grade-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
}

.grade-pill.grade-a {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.grade-pill.grade-b {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-light, #60a5fa);
}

.grade-pill.grade-c {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.grade-pill.grade-d,
.grade-pill.grade-f {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

/* ── Subject color chips (from SUBJECT_COLOR_PALETTE, applied inline via style) ── */
.subject-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 99px;
}

.subject-chip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Statistics summary strip (per-subject averages atop the grid) ── */
.marks-stat-strip {
  display: flex;
  gap: 16px;
  padding: 10px 18px;
  overflow-x: auto;
}

.marks-stat-strip__item {
  text-align: center;
  min-width: 70px;
}

.marks-stat-strip__value {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--card-text, #e2e8f0);
}

.marks-stat-strip__label {
  font-size: 0.6rem;
  color: var(--card-text-muted, #475569);
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .marks-toolbar {
    padding: 10px 12px;
  }

  .marks-entry-table td,
  .marks-entry-table th {
    padding: 6px 8px;
    font-size: 0.75rem;
  }

  .marks-input {
    width: 48px;
    font-size: 0.75rem;
  }
}