/* ============================================================
   students-mgmt.css — 生徒管理 v2 専用スタイル
   - 強制PW変更モーダル
   - SNS 一括管理カード
   - SNS エディタモーダル
   - 管理者用 全生徒 SNS 一覧
   ============================================================ */

/* ────────────────────────────────────────
   強制 PW 変更モーダル（フルスクリーン）
   ──────────────────────────────────────── */
.force-pw-overlay {
  position: fixed;
  inset: 0;
  z-index: 9500;
  display: grid;
  place-items: center;
  padding: 24px;
  background: oklch(15% 0.018 275 / 0.85);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
  opacity: 0;
  transition: opacity 250ms ease;
}
.force-pw-overlay--visible { opacity: 1; }

.force-pw-card {
  width: 100%;
  max-width: 460px;
  padding: clamp(28px, 5vw, 40px);
  border-radius: 24px;
  background: var(--color-surface-raised, #fff);
  box-shadow: 0 30px 60px oklch(54% 0.23 275 / 0.4);
  text-align: center;
  transform: translateY(12px);
  transition: transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
}
.force-pw-overlay--visible .force-pw-card { transform: translateY(0); }

.force-pw-card__icon {
  font-size: 44px;
  line-height: 1;
  margin-bottom: 12px;
}
.force-pw-card__title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.005em;
}
.force-pw-card__lead {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}
.force-pw-card__hint {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: oklch(96% 0.005 280);
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.6;
  text-align: left;
}
.force-pw-card__signout {
  display: inline-block;
  margin-top: 14px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 12px;
  text-decoration: underline;
  cursor: pointer;
}
@media (prefers-color-scheme: dark) {
  .force-pw-card { background: oklch(20% 0.02 275); }
  .force-pw-card__hint { background: oklch(26% 0.02 280); }
}

/* ────────────────────────────────────────
   SNS 一括管理カード（生徒プロフィール内）
   ──────────────────────────────────────── */
.sns-card__hint {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}
.sns-card__loading,
.sns-card__empty {
  padding: 28px 16px;
  border: 1px dashed var(--color-border-strong, oklch(82% 0.015 275));
  border-radius: 14px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
}
.sns-card__empty-hint { font-size: 12px; opacity: 0.85; }

.sns-row {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 12px;
  padding: 12px;
  border-radius: 14px;
  background: oklch(98% 0.005 280);
  border: 1px solid var(--color-border, oklch(91% 0.012 275));
  margin-bottom: 8px;
  align-items: start;
}
.sns-row--primary {
  border-color: var(--color-border-brand, oklch(82% 0.06 275));
  background: oklch(98% 0.02 275);
}
.sns-row__icon {
  font-size: 22px;
  line-height: 1;
  text-align: center;
}
.sns-row__main { min-width: 0; }
.sns-row__top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.sns-row__platform {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary-dark, #3730a3);
  letter-spacing: 0.02em;
}
.sns-row__scope,
.sns-row__primary {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.sns-row__scope {
  background: oklch(94% 0.005 280);
  color: var(--color-text-muted);
}
.sns-row__primary {
  background: var(--gradient-brand, linear-gradient(135deg, #4f46e5, #14b8a6));
  color: #fff;
}
.sns-row__handle {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 13px;
  word-break: break-all;
}
.sns-row__link {
  display: inline-block;
  margin-top: 2px;
  font-size: 11px;
  color: var(--color-primary, #4f46e5);
  text-decoration: none;
  word-break: break-all;
}
.sns-row__link:hover { text-decoration: underline; }
.sns-row__notes {
  margin-top: 4px;
  font-size: 11px;
  color: var(--color-text-muted);
}
.sns-row__actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
@media (max-width: 480px) {
  .sns-row {
    grid-template-columns: 32px 1fr;
  }
  .sns-row__actions {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: flex-end;
  }
}
@media (prefers-color-scheme: dark) {
  .sns-row { background: oklch(22% 0.02 280); }
  .sns-row--primary { background: oklch(26% 0.05 275); }
  .sns-row__scope { background: oklch(28% 0.02 280); }
}

/* ────────────────────────────────────────
   SNS エディタ（モーダル）
   ──────────────────────────────────────── */
.sns-editor-overlay {
  position: fixed;
  inset: 0;
  z-index: 9300;
  display: grid;
  place-items: center;
  padding: 16px;
  background: oklch(15% 0.018 275 / 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 220ms ease;
}
.sns-editor-overlay--visible { opacity: 1; }

.sns-editor {
  width: 100%;
  max-width: 460px;
  background: var(--color-surface-raised, #fff);
  border-radius: 22px;
  box-shadow: 0 24px 48px oklch(0% 0 0 / 0.3);
  overflow: hidden;
}
.sns-editor__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border, oklch(91% 0.012 275));
}
.sns-editor__title { margin: 0; font-size: 16px; font-weight: 700; }
.sns-editor__close {
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
}
.sns-editor__close:hover { background: oklch(95% 0.005 280); }
.sns-editor__form { padding: 20px; }
@media (prefers-color-scheme: dark) {
  .sns-editor { background: oklch(20% 0.02 275); }
  .sns-editor__close:hover { background: oklch(28% 0.02 280); }
}

/* ────────────────────────────────────────
   管理者用 全生徒 SNS 一覧
   ──────────────────────────────────────── */
.sns-admin__filter {
  margin-bottom: 16px;
}
.sns-admin__search {
  max-width: 360px;
}
.sns-admin__card {
  border: 1px solid var(--color-border, oklch(91% 0.012 275));
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 12px;
  background: var(--color-surface-raised, #fff);
}
.sns-admin__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.sns-admin__name {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
}
.sns-admin__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.sns-admin__count {
  flex-shrink: 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gradient-brand-soft, oklch(94% 0.04 275));
  color: var(--color-primary-dark, #3730a3);
  font-size: 12px;
  font-weight: 700;
}
.sns-admin__rows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sns-admin__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 8px 10px;
  border-radius: 10px;
  background: oklch(98% 0.005 280);
  font-size: 13px;
}
.sns-admin__icon { font-size: 18px; }
.sns-admin__platform {
  font-weight: 700;
  font-size: 12px;
  color: var(--color-primary-dark, #3730a3);
  min-width: 80px;
}
.sns-admin__handle {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 12px;
  word-break: break-all;
}
.sns-admin__link {
  font-size: 12px;
  color: var(--color-primary, #4f46e5);
  text-decoration: none;
  white-space: nowrap;
}
.sns-admin__link:hover { text-decoration: underline; }
.sns-admin__nolink {
  font-size: 11px;
  color: var(--color-text-muted);
  font-style: italic;
}
.sns-admin__primary-tag,
.sns-admin__group-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 999px;
}
.sns-admin__primary-tag {
  background: var(--gradient-brand, linear-gradient(135deg, #4f46e5, #14b8a6));
  color: #fff;
}
.sns-admin__group-tag {
  background: oklch(94% 0.005 280);
  color: var(--color-text-muted);
}
.sns-admin__notes {
  flex-basis: 100%;
  font-size: 11px;
  color: var(--color-text-muted);
  padding-left: 26px;
}
.sns-admin__empty {
  text-align: center;
  padding: 32px;
  color: var(--color-text-muted);
}
@media (prefers-color-scheme: dark) {
  .sns-admin__card { background: oklch(22% 0.02 280); }
  .sns-admin__row { background: oklch(26% 0.02 280); }
  .sns-admin__group-tag { background: oklch(28% 0.02 280); }
}