/* ============================================================
   COMPONENTS — the shared design-system primitives every later
   phase builds pages out of. Locked in Phase 1 so nothing here
   needs to change once Setup/Dashboard/Students/etc. are built.
   ============================================================ */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  border-radius: var(--radius-sm); border: 1px solid transparent;
  padding: 10px 16px; font-size: 13.5px; font-weight: 700;
  transition: background .15s, border-color .15s, box-shadow .15s, transform .1s var(--ease-spring);
}
.btn .icon { width: 15px; height: 15px; }
.btn:active { transform: scale(.97); }
.btn--primary { background: var(--gradient-brand); color: #fff; box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--color-primary) 55%, transparent); }
.btn--primary:hover { filter: brightness(1.05); }
.btn--secondary { background: var(--color-surface); color: var(--color-ink); border-color: var(--color-border-strong); }
.btn--secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn--ghost { background: transparent; color: var(--color-ink-soft); }
.btn--ghost:hover { background: var(--color-surface-alt); color: var(--color-ink); }
.btn--danger { background: var(--color-danger-tint); color: var(--color-danger); }
.btn--danger:hover { background: var(--color-danger); color: #fff; }
.btn--sm { padding: 7px 12px; font-size: 12.5px; }
.btn--lg { padding: 13px 22px; font-size: 15px; }
.btn--block { width: 100%; justify-content: center; }
.btn--icon { width: 38px; height: 38px; padding: 0; justify-content: center; border-radius: var(--radius-sm); background: var(--color-surface); border: 1px solid var(--color-border-strong); color: var(--color-ink-soft); }
.btn--icon:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ---------- Form controls ---------- */
.select-control, input[type=text], input[type=tel], input[type=number], input[type=search],
input[type=time], input[type=date], select, textarea {
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  padding: 11px 14px; background: var(--color-surface); width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
.select-control:focus, input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 14%, transparent);
}
label { font-size: 12.5px; font-weight: 700; color: var(--color-ink-soft); display: block; margin: var(--space-3) 0 var(--space-1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }

/* ---------- Panels / cards ---------- */
.panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-5) var(--space-6); box-shadow: var(--shadow-2); }
.panel--glass { background: color-mix(in srgb, var(--color-surface) 70%, transparent); backdrop-filter: blur(var(--glass-blur)); }
.panel__header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-4); flex-wrap: wrap; }
.panel__header h2, .panel__header h3 { font-size: 16.5px; }
.panel__eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--color-ink-faint); display: block; margin-bottom: 2px; }

.card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  padding: var(--space-5); box-shadow: var(--shadow-1);
  transition: transform .15s var(--ease-spring), box-shadow .15s, border-color .15s;
}
.card--interactive { cursor: pointer; }
.card--interactive:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: var(--color-primary); }

/* ---------- Chips / pills / tabs ---------- */
.chip { display: inline-flex; align-items: center; gap: 4px; padding: 4px 11px; border-radius: var(--radius-pill); font-size: 11px; font-weight: 700; }
.chip--good { background: var(--color-info-tint); color: var(--color-info); }
.chip--excellent { background: var(--color-success-tint); color: var(--color-success); }
.chip--warn { background: var(--color-warning-tint); color: color-mix(in srgb, var(--color-warning) 60%, black); }
.chip--danger { background: var(--color-danger-tint); color: var(--color-danger); }

.pill-tabs { display: flex; flex-wrap: wrap; gap: 4px; background: var(--color-surface-alt); border-radius: var(--radius-pill); padding: 4px; width: fit-content; max-width: 100%; }
.pill-tab { background: none; border: none; padding: 8px 16px; font-weight: 700; font-size: 13px; color: var(--color-ink-soft); border-radius: var(--radius-pill); transition: background .15s, color .15s; white-space: nowrap; flex-shrink: 0; }
.pill-tab:hover { color: var(--color-ink); }
.pill-tab.is-active { color: #fff; background: var(--gradient-brand); box-shadow: var(--shadow-1); }

/* ---------- Empty states ---------- */
.empty-state { text-align: center; padding: var(--space-7) var(--space-4); color: var(--color-ink-soft); }
.empty-state--inline { padding: var(--space-2) 0; text-align: right; }
.empty-state__text { font-size: 13.5px; max-width: 320px; margin: 0 auto; }

/* ---------- Modals ---------- */
.modal { border: none; border-radius: var(--radius-xl); padding: 0; width: min(520px, 92vw); box-shadow: var(--shadow-3); background: var(--color-surface); color: var(--color-ink); }
.modal::backdrop { background: rgba(10,20,22,.5); backdrop-filter: blur(2px); }
.modal__form { display: flex; flex-direction: column; }
.modal__header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border); }
.modal__header h2 { font-size: 17px; }
.modal__close { width: 32px; height: 32px; border-radius: 50%; background: var(--color-surface-alt); border: none; color: var(--color-ink-soft); display: grid; place-items: center; }
.modal__close:hover { background: var(--color-danger-tint); color: var(--color-danger); }
.modal__body { padding: var(--space-5) var(--space-6); display: flex; flex-direction: column; gap: 2px; max-height: 65vh; overflow-y: auto; }
.modal__body textarea { min-height: 90px; resize: vertical; }
.modal__footer { display: flex; justify-content: flex-end; gap: var(--space-3); padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); }

/* ---------- Dashboard: stat cards, schedule list, tasks ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-4); margin-bottom: var(--space-6); }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-5); box-shadow: var(--shadow-2); }
.stat-card__icon { width: 42px; height: 42px; border-radius: var(--radius-md); display: grid; place-items: center; background: var(--stat-tint, var(--color-primary-tint)); color: var(--stat-color, var(--color-primary)); margin-bottom: var(--space-3); }
.stat-card__value { font-size: 26px; font-weight: 700; }
.stat-card__label { color: var(--color-ink-soft); font-size: 12.5px; margin-top: 2px; }
.stat-card--a { --stat-color: var(--color-primary); --stat-tint: var(--color-primary-tint); }
.stat-card--b { --stat-color: var(--color-info); --stat-tint: var(--color-info-tint); }
.stat-card--c { --stat-color: var(--color-warning); --stat-tint: var(--color-warning-tint); }
.stat-card--d { --stat-color: var(--color-danger); --stat-tint: var(--color-danger-tint); }

.dashboard-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--space-5); }
@media (max-width: 900px) { .dashboard-grid { grid-template-columns: 1fr; } .stat-grid { grid-template-columns: repeat(2,1fr); } }

.today-schedule { display: flex; flex-direction: column; gap: var(--space-2); }
.today-schedule__item { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: var(--color-surface-alt); border: 1px solid var(--color-border); }
.today-schedule__item--clickable { cursor: pointer; transition: transform .15s var(--ease-spring), border-color .15s, background .15s; }
.today-schedule__item--clickable:hover { transform: translateX(-2px); border-color: var(--color-primary); background: var(--color-primary-tint); }
.today-schedule__item--clickable:focus-visible { outline: 2px solid var(--color-primary-dark); outline-offset: 2px; }
.today-schedule__period { width: 30px; height: 30px; border-radius: 50%; background: var(--color-primary); color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.today-schedule__name { font-weight: 700; font-size: 14px; }
.today-schedule__meta { font-size: 11px; color: var(--color-ink-faint); }

.task-list { display: flex; flex-direction: column; gap: var(--space-2); }
.task-item { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-2) 0; border-bottom: 1px dashed var(--color-border); font-size: 13.5px; }
.task-item:last-child { border-bottom: none; }
.task-item input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--color-primary); }
.task-item.is-done span { text-decoration: line-through; color: var(--color-ink-faint); }

/* ---------- Reports (Phase 13) ---------- */
.report-preview { min-height: 260px; }

.report-letterhead { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-bottom: var(--space-4); margin-bottom: var(--space-4); border-bottom: 2px solid var(--color-primary); }
.report-letterhead__school { font-weight: 700; font-size: 16px; }
.report-letterhead__meta { font-size: 12px; color: var(--color-ink-soft); margin-top: 2px; }
.report-letterhead__badge { font-size: 11px; font-weight: 700; color: var(--color-primary); background: var(--color-primary-tint); padding: 6px 14px; border-radius: var(--radius-pill); white-space: nowrap; }

.report-student-section { margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1.5px dashed var(--color-border); }
.report-student-section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

@media print {
  .sidebar, .app-header, .toolbar, .toast-container { display: none !important; }
  .main-content { padding: 0; max-width: none; }
  .report-preview { box-shadow: none; border: none; padding: 0; }
  .report-student-section { break-inside: avoid; break-after: page; border-bottom: none; padding-bottom: 0; }
  .report-student-section:last-child { break-after: auto; }
  .report-letterhead { break-after: avoid; }
  @page { margin: 16mm; }
}

/* ---------- Planning (Phase 12): weekly schedule grid + annual budgeting rows ---------- */
.schedule-grid { display: grid; grid-template-columns: 90px repeat(5, 1fr); gap: 6px; }
.schedule-grid .cell { background: var(--color-surface-alt); border-radius: var(--radius-sm); padding: 8px; min-height: 44px; display: flex; align-items: center; justify-content: center; text-align: center; font-size: 11.5px; }
.schedule-grid .cell--head { background: var(--color-primary-tint); color: var(--color-primary-dark); font-weight: 700; }
.schedule-grid select { padding: 6px; font-size: 11.5px; }
@media (max-width: 900px) { .schedule-grid { grid-template-columns: 70px repeat(5, minmax(80px,1fr)); font-size: 11px; overflow-x: auto; } }

.plan-grid { display: grid; gap: var(--space-3); }
.plan-row { display: grid; grid-template-columns: 120px 1fr; gap: var(--space-3); align-items: start; padding: var(--space-3); border-radius: var(--radius-md); background: var(--color-surface-alt); }
.plan-row__subject { font-weight: 700; font-size: 13px; padding-top: 8px; }

/* ---------- Progress (Phase 11) ---------- */
.progress-chart { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding-top: var(--space-3); }
.progress-chart__bar { flex: 1; border-radius: 6px 6px 0 0; min-height: 4px; }
.progress-chart__labels { display: flex; gap: 6px; margin-top: var(--space-2); }
.progress-chart__labels span { flex: 1; text-align: center; font-size: 10.5px; color: var(--color-ink-faint); }

/* ---------- Discipline Log (Phase 9) — timeline cards, not a table ---------- */
.discipline-entry { border-inline-start: 4px solid var(--color-border-strong); }
.discipline-entry--positive { border-inline-start-color: var(--color-success); }
.discipline-entry--warning { border-inline-start-color: var(--color-danger); }

/* ---------- Science Laboratory (Phase 8) ---------- */
.lab-card { display: block; }
.lab-card__title { font-weight: 700; font-size: 14.5px; }
.lab-card__date { font-size: 11.5px; color: var(--color-ink-faint); font-family: var(--font-mono); margin-top: 1px; }
.lab-card__desc { font-size: 13px; color: var(--color-ink-soft); margin-top: var(--space-2); line-height: 1.8; }
.image-thumbs { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-2); }
.image-thumbs img { width: 72px; height: 72px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--color-border); }

/* ---------- Lessons & Evaluation (Phase 6) ---------- */
.subject-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: var(--space-4); }
.subject-card { display: flex; flex-direction: column; gap: var(--space-2); }
.subject-card__icon { width: 42px; height: 42px; border-radius: var(--radius-md); display: grid; place-items: center; background: var(--subject-tint, var(--color-primary-tint)); color: var(--subject-color, var(--color-primary)); }
.subject-card__name { font-weight: 700; font-size: 14.5px; }
.subject-card__meta { font-size: 12px; color: var(--color-ink-soft); }

.level-btn {
  width: 32px; height: 32px; border-radius: var(--radius-xs); border: 1px solid var(--color-border-strong); background: var(--color-surface-alt);
  font-size: 11px; font-weight: 700; color: var(--color-ink-soft); transition: background .15s, color .15s, border-color .15s, transform .15s var(--ease-spring);
}
.level-btn:hover { transform: translateY(-1px); }
.level-btn[data-level="excellent"].is-active { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.level-btn[data-level="good"].is-active { background: var(--color-info); border-color: var(--color-info); color: #fff; }
.level-btn[data-level="acceptable"].is-active { background: var(--color-warning); border-color: var(--color-warning); color: #fff; }
.level-btn[data-level="needs-improvement"].is-active { background: var(--color-danger); border-color: var(--color-danger); color: #fff; }

/* ---------- Data tables (Attendance now, Evaluations/Homework later) ---------- */
.eval-table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-1); }
.eval-table { width: 100%; min-width: 520px; }
.eval-table th, .eval-table td { padding: 12px 14px; text-align: center; border-bottom: 1px solid var(--color-border); font-size: 13px; }
.eval-table th { background: var(--color-surface-alt); font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em; color: var(--color-ink-soft); }
.eval-table td:first-child, .eval-table th:first-child { text-align: right; }
.eval-table tbody tr:hover { background: var(--color-surface-alt); }
.eval-table tbody tr:last-child td { border-bottom: none; }
.eval-table__student { display: flex; align-items: center; gap: 8px; }

.attendance-select { display: flex; gap: 4px; justify-content: center; flex-wrap: wrap; }
.chip-btn { padding: 7px 12px; border-radius: var(--radius-pill); border: 1px solid var(--color-border-strong); background: var(--color-surface-alt); font-size: 12px; font-weight: 700; color: var(--color-ink-soft); transition: background .15s, color .15s, border-color .15s; }
.chip-btn.is-active[data-att="present"] { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.chip-btn.is-active[data-att="absent"]  { background: var(--color-danger);  border-color: var(--color-danger);  color: #fff; }
.chip-btn.is-active[data-att="late"]    { background: var(--color-warning); border-color: var(--color-warning); color: #fff; }
.chip-btn.is-active[data-att="left"]    { background: var(--color-plum);    border-color: var(--color-plum);    color: #fff; }
.chip-btn.is-active[data-hw="completed"]     { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.chip-btn.is-active[data-hw="partial"]       { background: var(--color-warning); border-color: var(--color-warning); color: #fff; }
.chip-btn.is-active[data-hw="not-completed"] { background: var(--color-danger);  border-color: var(--color-danger);  color: #fff; }

.inline-input { width: 90px; text-align: center; padding: 6px 8px; margin: 0 auto; }

.date-trigger { display: inline-flex; align-items: center; gap: var(--space-2); background: var(--color-surface); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: 10px 15px; font-weight: 700; font-size: 13.5px; }
.date-trigger .icon { width: 15px; height: 15px; color: var(--color-primary); }

/* ---------- Students (Phase 4) ---------- */
.student-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: var(--space-4); }
.student-card { display: flex; flex-direction: column; gap: var(--space-2); }
.student-card__top { display: flex; align-items: center; gap: var(--space-3); }
.student-card__avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--gradient-brand); color: #fff; display: grid; place-items: center; font-weight: 700; flex-shrink: 0; }
.student-card__name { font-weight: 700; font-size: 14px; }
.student-card__group { font-size: 11.5px; color: var(--color-ink-faint); }
.student-card__id { font-family: var(--font-mono); font-size: 11.5px; color: var(--color-ink-soft); background: var(--color-surface-alt); border-radius: var(--radius-sm); padding: 6px 10px; }

/* ---------- Setup page (Phase 2) ---------- */
.setup-card { max-width: 440px; width: 100%; }
.theme-swatch-row { display: flex; gap: var(--space-3); margin-top: var(--space-2); }
.theme-swatch {
  width: 44px; height: 44px; border-radius: 50%; border: 2px solid transparent;
  padding: 4px; background: var(--color-surface-alt);
  transition: border-color .15s, transform .15s var(--ease-spring);
}
.theme-swatch:hover { transform: scale(1.06); }
.theme-swatch.is-active { border-color: var(--color-ink); }
.theme-swatch__dot { display: block; width: 100%; height: 100%; border-radius: 50%; }

/* ---------- Toasts ---------- */
.toast-container { position: fixed; bottom: var(--space-6); left: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); z-index: 1000; }
.toast { background: var(--color-ink); color: #fff; padding: 12px 18px; border-radius: var(--radius-md); font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow-3); animation: toast-in .25s var(--ease-spring); }
.toast--success { background: var(--color-success); }
.toast--error { background: var(--color-danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }