/* Shared screen helpers (forms, lists, detail, account) — tokens + components. */

/* ---- generic form card ---- */
.form-card { max-width: 640px; }
.form-card__title { font-size: var(--text-3xl); font-weight: var(--weight-extrabold); color: var(--ink); }
.form-card__step { font-size: var(--text-md); color: var(--grey-500); margin-top: 4px; margin-bottom: var(--space-7); }
.field-block { margin-bottom: var(--space-5); }
.field-stack { display: flex; flex-direction: column; gap: 7px; margin-bottom: var(--space-5); }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
textarea.field { resize: vertical; min-height: 96px; font-family: inherit; }
.form-actions { margin-top: var(--space-6); }
.back-link { margin-bottom: var(--space-5); }

/* list lead cell (avatar + name/meta) + inactive row */
.list__lead { display: flex; align-items: center; gap: 12px; min-width: 0; }
.list__name { display: block; }
a.list__name { text-decoration: none; color: var(--ink); }
a.list__name:hover { color: var(--teal-600); }
.list__meta { display: block; }
.list__row.is-inactive { opacity: .5; }
a.list__row { text-decoration: none; color: var(--ink); }

/* toggle switch (Group lesson / Deactivate) */
.toggle-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  background: var(--field-bg); border: 1px solid var(--field-border); border-radius: var(--radius-md);
  padding: 16px 18px; cursor: pointer; }
.toggle-row__title { display: block; font-size: var(--text-md); font-weight: var(--weight-bold); color: var(--ink); }
.toggle-row__sub { display: block; font-size: var(--text-sm); color: var(--grey-500); margin-top: 2px; }
.toggle-row--danger .toggle-row__title { color: var(--danger); }
.switch { position: relative; width: 46px; height: 26px; flex: none; }
.switch__input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.switch__slider { position: absolute; inset: 0; border-radius: var(--radius-pill); background: var(--field-border); transition: background .15s; }
.switch__slider::before { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: var(--shadow-chip); transition: transform .15s; }
.switch__input:checked ~ .switch__slider { background: var(--teal-600); }
.switch__input:checked ~ .switch__slider::before { transform: translateX(20px); }
.toggle-row--danger .switch__input:checked ~ .switch__slider { background: var(--danger); }

/* ---- list / table columns (applied to .list__head + .list__row) ---- */
.cols-students { grid-template-columns: 2.6fr 1fr 1fr 1fr; }
.cols-payments { grid-template-columns: 2.4fr 1fr 1fr 1.2fr 44px; }
.cols-groups   { grid-template-columns: 1.4fr 2fr auto; }
.cols-homework { grid-template-columns: 0.9fr 1.9fr 0.9fr auto 44px; }
.file-link { display: inline-flex; align-items: center; gap: 6px; color: var(--teal-600);
  text-decoration: none; font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.file-link:hover { text-decoration: underline; }
.a-quiet { color: var(--teal-600); text-decoration: none; }
.a-quiet:hover { text-decoration: underline; }
.pub-badge { border: none; cursor: pointer; }
.list__cell--right { text-align: right; }
.list__actions { display: inline-flex; gap: 8px; justify-content: flex-end; align-items: center; }
.row-action { color: var(--grey-600); border: none; background: transparent; cursor: pointer; text-decoration: none; }
.row-action:hover { color: var(--teal-600); background: var(--field-bg); }
.row-action svg { width: 18px; height: 18px; }
.row-action--danger { color: var(--danger); }
.row-action--danger:hover { color: var(--danger); background: var(--danger-bg); }
.list__actions form { display: inline-flex; }

/* ---- student detail ---- */
.detail-grid { display: grid; grid-template-columns: 300px 1fr; gap: var(--space-5); align-items: start; }
.detail-side { background: var(--surface); border-radius: var(--radius-3xl); box-shadow: var(--shadow-card); padding: var(--space-7); }
.detail-side__name { font-size: var(--text-2xl); font-weight: var(--weight-extrabold); color: var(--ink); margin-top: var(--space-3); }
.detail-side__balance { font-size: var(--text-lg); font-weight: var(--weight-bold); margin-top: 4px; }
.detail-side__link { display: inline-block; color: var(--lavender); font-weight: var(--weight-semibold); text-decoration: none; margin: var(--space-4) 0; }
.detail-side__link:hover { text-decoration: underline; }
.detail-side hr { border: none; border-top: 1px solid var(--line); margin: var(--space-4) 0; }
.detail-meta { font-size: var(--text-sm); color: var(--grey-600); line-height: 1.9; }
.detail-meta b { color: var(--ink); font-weight: var(--weight-semibold); }
.detail-edit { display: inline-block; margin-top: var(--space-4); color: var(--teal-600); font-weight: var(--weight-semibold); text-decoration: none; }
.detail-pane { background: var(--surface); border-radius: var(--radius-3xl); box-shadow: var(--shadow-card); padding: var(--space-7); }
.detail-tabs { margin-bottom: var(--space-5); }
.detail-tabs .tab { text-decoration: none; }
.skill-add .btn { flex: none; }
.drow { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-top: 1px solid var(--line); }
.drow:first-of-type { border-top: none; }
.drow__date { font-size: var(--text-md); color: var(--grey-600); }
.drow__val { font-size: var(--text-md); font-weight: var(--weight-semibold); color: var(--ink); }
.drow__method { color: var(--grey-500); font-weight: var(--weight-regular); font-size: var(--text-sm); }

/* skills */
.skill-add { display: flex; gap: 10px; margin-bottom: var(--space-5); align-items: stretch; }
.skill-add .field { flex: 1 1 auto; width: auto; min-width: 0; }
.skill-add .btn { flex: 0 0 auto; }
.skill-row { display: flex; align-items: center; justify-content: space-between; padding: 11px 0; border-top: 1px solid var(--line); }
.skill-row:first-of-type { border-top: none; }
.skill-row__name { font-size: var(--text-md); font-weight: var(--weight-semibold); color: var(--ink); }
.skill-row--done .skill-row__name { color: var(--success); }
.skill-icon { width: 28px; height: 28px; border-radius: var(--radius-pill); display: grid; place-items: center;
  border: none; cursor: pointer; text-decoration: none; }
.skill-icon svg { width: 15px; height: 15px; }
.skill-icon--confirm { background: var(--teal-tint); color: var(--teal-600); }
.skill-icon--del { background: var(--danger-bg); color: var(--danger); }
.skill-row__actions { display: inline-flex; gap: 8px; }

/* ---- account / settings ---- */
.acct-card { margin-bottom: var(--space-5); }
.acct-card__title { font-size: var(--text-xl); font-weight: var(--weight-extrabold); color: var(--ink); margin-bottom: var(--space-4); }
.cfg-row { display: grid; grid-template-columns: 1.2fr 1.6fr auto; align-items: center; gap: var(--space-3);
  padding: 11px 0; border-top: 1px solid var(--line); }
.cfg-row:first-of-type { border-top: none; }
.cfg-row__label { font-size: var(--text-md); color: var(--grey-600); }
.cfg-row__val { font-size: var(--text-md); font-weight: var(--weight-semibold); color: var(--ink); }
.acct-link { display: block; color: var(--teal-600); font-weight: var(--weight-semibold); text-decoration: none; padding: 6px 0; }
.acct-link:hover { text-decoration: underline; }
.acct-logout { color: var(--danger); font-weight: var(--weight-bold); text-decoration: none; }
.acct-danger { display: inline-block; margin-top: var(--space-4); font-size: var(--text-sm); color: var(--grey-400); text-decoration: none; }

/* file dropzone (add homework) */
.dropzone { border: 2px dashed var(--field-border); border-radius: var(--radius-md);
  padding: var(--space-6); text-align: center; color: var(--grey-500); background: var(--field-bg); }
.dropzone input { display: block; margin: var(--space-2) auto 0; }

/* checkbox list (groups / presence) */
.check-list { display: flex; flex-direction: column; gap: 4px; max-height: 320px; overflow: auto;
  border: 1px solid var(--field-border); border-radius: var(--radius-md); padding: var(--space-3); }
.check-list label { display: flex; align-items: center; gap: 10px; padding: 7px 8px; border-radius: var(--radius-sm);
  font-size: var(--text-md); color: var(--ink); cursor: pointer; }
.check-list label:hover { background: var(--field-bg); }

/* live-search typeahead (select[data-typeahead] enhancement) */
.ta { position: relative; }
.ta__menu { position: absolute; top: calc(100% + 4px); left: 0; right: 0; z-index: 30; margin: 0;
  padding: 6px; list-style: none; background: var(--surface); border: 1px solid var(--field-border);
  border-radius: var(--radius-md); box-shadow: var(--shadow-modal); max-height: 244px; overflow: auto; }
.ta__opt { padding: 10px 12px; border-radius: var(--radius-sm); font-size: var(--text-md);
  color: var(--ink); cursor: pointer; }
.ta__opt:hover, .ta__opt.is-active { background: var(--field-bg); }

/* whole-row click affordance */
.clickable-row { cursor: pointer; }

/* group member management */
.member-list { display: flex; flex-direction: column; border: 1px solid var(--field-border);
  border-radius: var(--radius-md); overflow: hidden; }
.member-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: 11px 14px; border-top: 1px solid var(--field-border); }
.member-row:first-child { border-top: none; }
.member-row__name { font-size: var(--text-md); color: var(--ink); font-weight: var(--weight-medium); }
.member-row form { margin: 0; }
.member-empty { padding: 14px; font-size: var(--text-md); color: var(--grey-500); }

/* search embedded in a column header (Students / Payments "STUDENT" column) */
.colhead-search { display: flex; align-items: center; gap: 16px; }
.col-search { position: relative; flex: 0 1 230px; min-width: 130px; }
.col-search input { width: 100%; text-transform: none; letter-spacing: normal;
  padding: 7px 12px 7px 32px; border-radius: var(--radius-pill); border: 1px solid var(--field-border);
  background: var(--field-bg); color: var(--ink); font-family: inherit; font-size: var(--text-sm);
  font-weight: var(--weight-medium); }
.col-search input::placeholder { color: var(--grey-400); font-weight: var(--weight-medium); }
.col-search input:focus { outline: none; border-color: var(--teal-600); background: #fff; }
.col-search svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; color: var(--grey-500); pointer-events: none; }

/* list toolbar (search) */
.list-toolbar { display: flex; justify-content: flex-end; align-items: center; gap: var(--space-3);
  padding: 0 var(--space-2) var(--space-3); }
.list-search { position: relative; width: 280px; max-width: 100%; }
.list-search input { width: 100%; padding: 10px 14px 10px 38px; border-radius: var(--radius-pill);
  border: 1px solid var(--field-border); background: var(--field-bg); font-family: inherit;
  font-size: var(--text-md); color: var(--ink); }
.list-search input:focus { outline: none; border-color: var(--teal-600); background: #fff; }
.list-search svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; color: var(--grey-500); pointer-events: none; }

/* pagination */
.pager { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  flex-wrap: wrap; padding: var(--space-4) var(--space-2) var(--space-2); }
.pager__count { font-size: var(--text-sm); color: var(--grey-500); }
.pager__nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.pager__btn { min-width: 34px; height: 34px; padding: 0 9px; border-radius: var(--radius-md);
  border: 1px solid var(--field-border); background: #fff; color: var(--ink); cursor: pointer;
  font-family: inherit; font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.pager__btn:hover:not(:disabled) { border-color: var(--teal-600); color: var(--teal-600); }
.pager__btn.is-active { background: var(--teal-600); border-color: var(--teal-600); color: #fff; }
.pager__btn:disabled { opacity: .4; cursor: default; }
.pager__gap { padding: 0 4px; color: var(--grey-500); }

@media (max-width: 860px) {
  .detail-grid { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
}