/* ======================================
   auth.css — ログイン / 登録 / ダッシュボード共通
   DESIGN.md（Warm Minimalism）準拠
   ====================================== */

:root {
  --color-bg: #FAFAF7;
  --color-bg-alt: #F2EFE9;
  --color-surface: #FFFFFF;
  --color-bg-dark: #1A1A1A;
  --color-text: #1A1A1A;
  --color-text-sub: #6B6B66;
  --color-text-mute: #A5A39C;
  --color-text-on-dark: #FAFAF7;
  --color-accent: #C77A52;
  --color-accent-dark: #9E5F3C;
  --color-accent-soft: #F4E6D9;
  --color-border: rgba(26, 26, 26, 0.08);
  --color-border-strong: rgba(26, 26, 26, 0.15);
  --radius-card: 16px;
  --radius-btn: 12px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ======================================
   ログイン / 新規登録 画面
   ====================================== */

.auth-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
}

.auth-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 56px 24px;
  gap: 24px;
}

.auth-card {
  width: 100%;
  max-width: 480px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 44px 48px 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
  align-items: center;
}
.auth-card--wide { max-width: 560px; }

.auth-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.auth-logo {
  height: 200px;
  width: auto;
  object-fit: contain;
  display: block;
}

.auth-eyebrow {
  margin: 0;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-sub);
}

.auth-title {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--color-text);
}

.auth-lead {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--color-text-sub);
}

/* プランタブ（新規登録） */
.auth-plan-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
  padding: 4px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-btn);
  margin-bottom: 4px;
}
.auth-plan-tab {
  padding: 12px 14px;
  background: transparent;
  border: none;
  border-radius: 8px;
  text-align: left;
  color: var(--color-text-sub);
  transition: all 0.2s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.auth-plan-tab.is-active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 0 1px 2px rgba(26,26,26,0.04);
}
.auth-plan-tab-title {
  font-size: 13px;
  font-weight: 600;
}
.auth-plan-tab-price {
  font-size: 12px;
  color: inherit;
  opacity: 0.75;
}
.auth-plan-tab-price small { font-size: 10px; opacity: 0.8; }

.auth-google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 14px 20px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s var(--ease);
}
.auth-google-btn:hover {
  background: rgba(26, 26, 26, 0.04);
  border-color: rgba(26, 26, 26, 0.3);
  transform: translateY(-1px);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  margin: 2px 0;
  color: var(--color-text-mute);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  text-align: left;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-field-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
}
.auth-field-label small { font-weight: 400; color: var(--color-text-mute); }

.auth-field input {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.auth-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-surface);
}
.auth-field input::placeholder { color: var(--color-text-mute); }

.auth-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12px;
  color: var(--color-text-sub);
  line-height: 1.55;
  margin-top: 4px;
}
.auth-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--color-accent);
}
.auth-check a { color: var(--color-text); border-bottom: 1px solid rgba(26,26,26,0.3); }

/* 横並び field */
.auth-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 520px) {
  .auth-field-row { grid-template-columns: 1fr; }
}

.auth-note {
  margin: -6px 0 0;
  font-size: 11px;
  color: var(--color-text-mute);
  line-height: 1.6;
}

/* 人数入力 */
.auth-field--seats .auth-seats-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 4px;
  width: fit-content;
}
.auth-seats-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-surface);
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  transition: background 0.2s, transform 0.1s;
}
.auth-seats-btn:hover { background: var(--color-accent-soft); }
.auth-seats-btn:active { transform: scale(0.95); }
.auth-field--seats input[type="number"] {
  width: 80px;
  text-align: center;
  background: transparent;
  border: none !important;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  padding: 0 !important;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  -moz-appearance: textfield;
}
.auth-field--seats input[type="number"]::-webkit-outer-spin-button,
.auth-field--seats input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.auth-seats-suffix {
  font-size: 14px;
  color: var(--color-text-sub);
  padding-right: 10px;
}

/* 料金サマリーBOX */
.auth-price-box {
  width: 100%;
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}
.auth-price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  color: var(--color-text-sub);
}
.auth-price-row b { color: var(--color-text); font-weight: 600; }
.auth-price-row--total {
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text);
}
.auth-price-row--total b {
  font-family: 'Noto Serif JP', serif;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}
.auth-price-note {
  margin: 4px 0 0;
  font-size: 11px;
  color: var(--color-text-mute);
  line-height: 1.55;
}

.auth-price-coupon-hint {
  margin: 8px 0 0;
  padding: 8px 12px;
  background: var(--color-surface);
  border: 1px dashed var(--color-border-strong);
  border-radius: 8px;
  font-size: 11px;
  color: var(--color-accent-dark);
  line-height: 1.55;
  font-weight: 500;
}

/* サブミットボタン（サブテキスト付き） */
.auth-submit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 14px 20px;
}
.auth-submit-sub {
  font-size: 12px;
  font-weight: 400;
  opacity: 0.7;
}

/* クーポン入力 */
.auth-coupon {
  display: flex;
  gap: 8px;
}
.auth-coupon input {
  flex: 1;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: 14px;
  color: var(--color-text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: border-color 0.2s;
}
.auth-coupon input:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-surface);
}
.auth-coupon input::placeholder { text-transform: none; color: var(--color-text-mute); letter-spacing: 0; }
.auth-coupon-btn {
  padding: 0 18px;
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border: none;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
}
.auth-coupon-btn:hover { background: #2D2D2D; }
.auth-coupon-btn:active { transform: scale(0.97); }
.auth-coupon-msg {
  margin: 6px 0 0;
  font-size: 12px;
  font-weight: 500;
  min-height: 1em;
}
.auth-coupon-msg.is-ok { color: #3B9A5F; }
.auth-coupon-msg.is-error { color: #C04B4B; }

.auth-submit {
  width: 100%;
  padding: 14px 20px;
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border: none;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  margin-top: 4px;
  transition: all 0.3s var(--ease);
}
.auth-submit:hover { background: #2D2D2D; transform: translateY(-1px); }

.auth-meta {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--color-text-sub);
}
.auth-meta a {
  color: var(--color-text);
  border-bottom: 1px solid rgba(26, 26, 26, 0.3);
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
  font-weight: 500;
}
.auth-meta a:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.auth-footer-text {
  max-width: 480px;
  font-size: 12px;
  color: var(--color-text-mute);
  text-align: center;
  line-height: 1.7;
  margin: 0;
}
.auth-footer-text a {
  color: var(--color-text-sub);
  border-bottom: 1px solid rgba(26, 26, 26, 0.2);
}

@media (max-width: 600px) {
  .auth-main { padding: 32px 20px; }
  .auth-card { padding: 32px 24px 28px; }
  .auth-logo { height: 140px; }
  .auth-title { font-size: 28px; }
}

/* ======================================
   ダッシュボード画面
   ====================================== */

.dash-body {
  min-height: 100vh;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
}

/* --- ヘッダー（スリム・ロゴ200px はみ出し） --- */
.dash-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--color-border);
  overflow: visible;
}

.dash-header-inner {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
  overflow: visible;
}

.dash-brand {
  display: inline-flex;
  align-items: center;
  height: 72px;
  text-decoration: none;
  color: var(--color-text);
  z-index: 2;
}
.dash-brand img {
  height: 200px;
  width: auto;
  display: block;
  /* ヘッダー72pxの上下中央に配置。200pxなので上下約64pxずつはみ出す */
  transform: translateY(0);
  margin: -64px 0;
  object-fit: contain;
}

.dash-header-spacer { flex: 1; }

.dash-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-right: 12px;
}
.dash-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.dash-nav a:hover { color: var(--color-accent); }
.dash-nav a.is-active { border-bottom-color: var(--color-text); }

.dash-user {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 16px 4px 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color 0.2s, transform 0.2s;
}
.dash-user:hover { border-color: var(--color-border-strong); transform: translateY(-1px); }
.dash-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}
.dash-user-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}
.dash-user-role {
  font-size: 10px;
  color: var(--color-accent-dark);
  margin-left: 2px;
  padding: 2px 8px;
  background: var(--color-accent-soft);
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* --- ヒーロー（コンパクト） --- */
.dash-hero {
  padding: 56px 40px 40px;
  border-bottom: 1px solid var(--color-border);
}
.dash-hero-inner {
  max-width: 1560px;
  margin: 0 auto;
}
.dash-hero-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 14px;
}
.dash-hero-title {
  margin: 0 0 16px;
  font-family: 'Noto Serif JP', serif;
  font-size: 44px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.dash-hero-title em {
  font-style: normal;
  color: var(--color-accent);
}
.dash-hero-lead {
  margin: 0;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text-sub);
  max-width: 640px;
}

/* --- メイン（2カラム） --- */
.dash-main {
  max-width: 1560px;
  margin: 0 auto;
  padding: 48px 40px 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}

.dash-content { min-width: 0; }

/* --- ツール別タブ --- */
.dash-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px;
  background: var(--color-bg-alt);
  border-radius: 14px;
  margin-bottom: 20px;
}
.dash-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
  transition: all 0.2s var(--ease);
}
.dash-tab:hover { color: var(--color-text); }
.dash-tab.is-active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 0 1px 2px rgba(26,26,26,0.04);
}
.dash-tab-icon {
  font-size: 14px;
  color: var(--color-accent);
}
.dash-tab-count {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-mute);
  background: rgba(26,26,26,0.06);
  padding: 2px 7px;
  border-radius: 999px;
}
.dash-tab.is-active .dash-tab-count {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

/* --- 難易度チップ + 検索 --- */
.dash-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.dash-chips {
  display: inline-flex;
  gap: 6px;
  flex-wrap: wrap;
}
.dash-chip {
  padding: 7px 14px;
  background: var(--color-surface);
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}
.dash-chip:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.dash-chip.is-active {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border-color: var(--color-bg-dark);
}
.dash-search {
  flex: 1;
  min-width: 220px;
  position: relative;
}
.dash-search svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-mute);
  pointer-events: none;
}
.dash-search input {
  width: 100%;
  padding: 11px 16px 11px 44px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  transition: border-color 0.2s;
}
.dash-search input:focus { outline: none; border-color: var(--color-accent); }

/* --- 講座グリッド --- */
.dash-course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.dash-course {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.3s;
  text-decoration: none;
  color: var(--color-text);
}
.dash-course:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-strong);
}
.dash-course-thumb {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.dash-course-thumb-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.dash-course-thumb-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 24px;
  font-weight: 700;
  color: #1A1A1A;
  text-align: center;
  line-height: 1.2;
  padding: 0 12px;
  letter-spacing: -0.01em;
}
.dash-course-thumb-icon {
  font-size: 52px;
  line-height: 1;
}
.dash-course--literacy .dash-course-thumb { background: #E8DCC8; }
.dash-course--gemini .dash-course-thumb { background: #F4E6D9; }
.dash-course--workspace .dash-course-thumb { background: #EDE1D2; }
.dash-course--notebook .dash-course-thumb { background: #E8D7C3; }
.dash-course--claude .dash-course-thumb { background: #DEC8AE; }

.dash-course-badge--must {
  background: var(--color-accent);
  color: #FFFFFF;
}

.dash-course-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  font-size: 11px;
  font-weight: 500;
  border-radius: 999px;
}
.dash-course-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dash-course-name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.45;
}
.dash-course-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-mute);
}
.dash-course-meta .sep { color: var(--color-border-strong); }

/* 講座カード内の進捗バー */
.dash-course-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}
.dash-course-progress-bar {
  flex: 1;
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 999px;
  overflow: hidden;
}
.dash-course-progress-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.dash-course-progress-text {
  font-size: 11px;
  color: var(--color-text-sub);
  font-weight: 500;
  white-space: nowrap;
}
.dash-course[data-progress="0"] .dash-course-progress-bar span,
.dash-course-progress[data-progress="0"] .dash-course-progress-bar span { background: var(--color-border-strong); }

/* --- 右カラム --- */
.dash-rightcol {
  position: sticky;
  top: 96px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 続きから受講 */
.dash-resume {
  display: flex;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 14px;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.3s var(--ease), border-color 0.2s;
}
.dash-resume:hover { transform: translateY(-2px); border-color: var(--color-border-strong); }
.dash-resume-thumb {
  flex-shrink: 0;
  width: 96px;
  height: 96px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.dash-resume-thumb-icon {
  font-size: 36px;
  color: #1A1A1A;
}
.dash-resume-play {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(26,26,26,0.85);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  padding-left: 2px;
}
.dash-resume-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.dash-resume-label {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0;
}
.dash-resume-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dash-resume-lesson {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-sub);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dash-resume-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.dash-resume-progress-bar {
  flex: 1;
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 999px;
  overflow: hidden;
}
.dash-resume-progress-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.dash-resume-progress > span:last-child {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-sub);
}

/* AIチューター */
.dash-tutor {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-card);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.dash-tutor-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.dash-tutor-badge {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
}
.dash-tutor-title {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 18px;
  font-weight: 500;
}
.dash-tutor-sub {
  margin: 0;
  font-size: 11px;
  color: rgba(250, 250, 247, 0.55);
  letter-spacing: 0.12em;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
}
.dash-tutor-bubble {
  background: rgba(250, 250, 247, 0.08);
  border: 1px solid rgba(250, 250, 247, 0.12);
  border-radius: 12px;
  padding: 13px 15px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(250, 250, 247, 0.88);
}
.dash-tutor-input {
  position: relative;
}
.dash-tutor-input textarea {
  width: 100%;
  min-height: 80px;
  padding: 12px 14px 44px;
  background: rgba(250, 250, 247, 0.06);
  border: 1px solid rgba(250, 250, 247, 0.12);
  border-radius: 10px;
  font-family: inherit;
  font-size: 13px;
  color: #FAFAF7;
  resize: vertical;
  transition: border-color 0.2s;
}
.dash-tutor-input textarea:focus { outline: none; border-color: var(--color-accent); }
.dash-tutor-input textarea::placeholder { color: rgba(250, 250, 247, 0.4); }
.dash-tutor-send {
  position: absolute;
  bottom: 10px;
  right: 10px;
  padding: 6px 14px;
  background: var(--color-accent);
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}
.dash-tutor-send:hover { background: var(--color-accent-dark); transform: translateY(-1px); }

/* 進捗サマリー */
.dash-progress {
  background: var(--color-bg-alt);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dash-progress-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-sub);
  font-weight: 600;
}
.dash-progress-value {
  font-family: 'Noto Serif JP', serif;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.dash-progress-value small {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-left: 4px;
}
.dash-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(26, 26, 26, 0.08);
  border-radius: 999px;
  overflow: hidden;
}
.dash-progress-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.dash-progress-meta {
  font-size: 12px;
  color: var(--color-text-sub);
  display: flex;
  justify-content: space-between;
}

/* 最新情報 */
.dash-news {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dash-news-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.dash-news-title {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
}
.dash-news-month {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  font-weight: 600;
}
.dash-news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.dash-news-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: color 0.2s;
}
.dash-news-item:last-child { border-bottom: none; }
.dash-news-item:hover { color: var(--color-accent); }
.dash-news-date {
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--color-text-mute);
  min-width: 40px;
  padding-top: 2px;
}
.dash-news-tag {
  display: inline-block;
  padding: 1px 8px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  margin-right: 6px;
}
.dash-news-text {
  font-size: 13px;
  line-height: 1.55;
  color: inherit;
}
.dash-news-more {
  margin-top: 2px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-sub);
  border-bottom: 1px solid rgba(26, 26, 26, 0.3);
  align-self: flex-start;
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.dash-news-more:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* --- レスポンシブ --- */
@media (max-width: 1100px) {
  .dash-main { grid-template-columns: 1fr; gap: 32px; padding: 40px 32px 80px; }
  .dash-rightcol {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .dash-resume, .dash-tutor, .dash-progress, .dash-news { grid-column: span 1; }
  .dash-tutor { grid-column: 1 / -1; }
  .dash-news { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .dash-header-inner { padding: 0 16px; gap: 12px; }
  .dash-brand img { height: 120px; margin: -24px 0; }
  .dash-nav { display: none; }
  .dash-user-role { display: none; }
  .dash-user-name { display: none; }
  .dash-hero { padding: 36px 20px 32px; }
  .dash-hero-title { font-size: 30px; }
  .dash-main { padding: 28px 20px 64px; }
  .dash-rightcol { grid-template-columns: 1fr; }
  .dash-tabs { padding: 6px; }
  .dash-tab { padding: 8px 12px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ==========================================================
   管理画面 (admin.html)
   ========================================================== */

.admin-main {
  max-width: 1560px;
  margin: 0 auto;
  padding: 40px 40px 96px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* KPI カード */
.admin-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.admin-kpi {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.admin-kpi-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-sub);
}
.admin-kpi-value {
  font-family: 'Noto Serif JP', serif;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.1;
}
.admin-kpi-value small {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-left: 4px;
}
.admin-kpi-meta {
  font-size: 12px;
  color: var(--color-text-mute);
}
.admin-kpi-bar {
  width: 100%;
  height: 6px;
  background: var(--color-bg-alt);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 2px;
}
.admin-kpi-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}

/* メイン2カラム */
.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}
.admin-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.admin-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.admin-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.admin-card-title {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
}
.admin-card-title em {
  font-style: normal;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-sub);
  margin-left: 10px;
}
.admin-card-sub {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-mute);
}
.admin-card-actions { display: flex; gap: 10px; }
.admin-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  border-bottom: 1px solid rgba(26,26,26,0.3);
  padding-bottom: 1px;
}
.admin-link:hover { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.admin-btn {
  padding: 9px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.admin-btn--primary {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
}
.admin-btn--primary:hover { background: #2D2D2D; transform: translateY(-1px); }
.admin-btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.admin-btn--ghost:hover { background: rgba(26,26,26,0.04); }

.admin-members-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

/* テーブル */
.admin-table-wrap {
  overflow-x: auto;
  margin: 0 -24px -22px;
  padding: 0 24px 22px;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.admin-table thead th {
  text-align: left;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-mute);
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}
.admin-table tbody td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table tbody tr:hover { background: rgba(26,26,26,0.02); }

.admin-member {
  display: flex;
  align-items: center;
  gap: 12px;
}
.admin-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
.admin-member-name { margin: 0; font-size: 14px; font-weight: 600; color: var(--color-text); }
.admin-member-mail { margin: 2px 0 0; font-size: 12px; color: var(--color-text-mute); }

.admin-progress {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-progress-bar {
  flex: 1;
  min-width: 80px;
  height: 5px;
  background: var(--color-bg-alt);
  border-radius: 999px;
  overflow: hidden;
}
.admin-progress-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.admin-progress > span {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-sub);
  min-width: 32px;
  text-align: right;
}

.admin-status {
  font-size: 8px;
  margin-right: 4px;
  vertical-align: middle;
}
.admin-status--ok { color: #4CAF50; }
.admin-status--warn { color: #E0A84E; }
.admin-status--off { color: var(--color-text-mute); }

.admin-row-btn {
  padding: 6px 14px;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s;
}
.admin-row-btn:hover { border-color: var(--color-text); background: rgba(26,26,26,0.04); }

/* 人気講座ランキング */
.admin-rank {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.admin-rank li {
  display: flex;
  align-items: center;
  gap: 14px;
}
.admin-rank-num {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 24px;
}
.admin-rank-body { flex: 1; }
.admin-rank-name {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

/* プラン情報 */
.admin-plan { gap: 12px; }
.admin-plan-name {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-sub);
  font-weight: 500;
}
.admin-plan-value {
  font-family: 'Noto Serif JP', serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.admin-plan-value small {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-sub);
  margin-left: 2px;
}
.admin-plan-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}
.admin-plan-list li { display: flex; justify-content: space-between; color: var(--color-text-sub); }
.admin-plan-list li b { color: var(--color-text); font-weight: 600; }
.admin-plan-link {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-sub);
  border-bottom: 1px solid rgba(26,26,26,0.2);
  align-self: center;
  padding-bottom: 1px;
  margin-top: 2px;
}

/* アクティビティ */
.admin-activity {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.admin-activity li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}
.admin-activity li:last-child { border-bottom: none; }
.admin-activity-time {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--color-text-mute);
  min-width: 90px;
}
.admin-activity-text { color: var(--color-text); line-height: 1.55; }
.admin-activity-text b { color: var(--color-text); font-weight: 600; }

@media (max-width: 1100px) {
  .admin-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .admin-main { padding: 28px 20px 72px; }
  .admin-card { padding: 20px 20px 18px; }
  .admin-table-wrap { margin: 0 -20px -18px; padding: 0 20px 18px; }
}

/* ==========================================================
   講座詳細 (course-detail.html)
   ========================================================== */

.cd-breadcrumb {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.cd-breadcrumb-inner {
  max-width: 1560px;
  margin: 0 auto;
  padding: 16px 40px;
  font-size: 13px;
  color: var(--color-text-sub);
}
.cd-breadcrumb-inner a {
  color: var(--color-text-sub);
  transition: color 0.2s;
}
.cd-breadcrumb-inner a:hover { color: var(--color-accent); }
.cd-sep { color: var(--color-text-mute); margin: 0 8px; }

.cd-main {
  max-width: 1560px;
  margin: 0 auto;
  padding: 32px 40px 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: start;
}
.cd-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Vimeoプレイヤー枠 */
.cd-player {
  background: var(--color-bg-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.cd-player-inner {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
}
.cd-player-inner iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.cd-player-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--color-text-on-dark);
  background: linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 100%);
}
.cd-player-placeholder p {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 18px;
  font-weight: 500;
}
.cd-player-placeholder small {
  font-size: 12px;
  color: rgba(250, 250, 247, 0.5);
}
.cd-play-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(250, 250, 247, 0.1);
  border: 1px solid rgba(250, 250, 247, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  padding-left: 6px;
  color: var(--color-text-on-dark);
  margin-bottom: 8px;
}

/* レッスン情報 */
.cd-lesson-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.cd-lesson-head { display: flex; flex-direction: column; gap: 8px; }
.cd-lesson-num {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.cd-lesson-title {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--color-text);
}
.cd-lesson-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-sub);
}
.cd-lesson-meta .sep { color: var(--color-border-strong); }
.cd-lesson-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-sub);
}
.cd-lesson-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.cd-btn {
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s var(--ease);
}
.cd-btn--primary {
  background: var(--color-accent);
  color: #FFFFFF;
}
.cd-btn--primary:hover { background: var(--color-accent-dark); transform: translateY(-1px); }
.cd-btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.cd-btn--ghost:hover { background: rgba(26,26,26,0.04); }

/* AIチューター（講座詳細版） */
.cd-tutor {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cd-tutor-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.cd-tutor-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cd-tutor-chip {
  padding: 8px 14px;
  background: rgba(250, 250, 247, 0.06);
  border: 1px solid rgba(250, 250, 247, 0.16);
  color: var(--color-text-on-dark);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s;
}
.cd-tutor-chip:hover {
  background: rgba(250, 250, 247, 0.12);
  border-color: var(--color-accent);
}
.cd-tutor .dash-tutor-input textarea { min-height: 90px; }

/* 関連教材 */
.cd-section-title {
  margin: 0 0 16px;
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
}
.cd-related {
  display: flex;
  flex-direction: column;
}
.cd-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.cd-related-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s var(--ease), border-color 0.2s;
}
.cd-related-item:hover { transform: translateY(-2px); border-color: var(--color-border-strong); }
.cd-related-tag {
  align-self: flex-start;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: 4px;
}
.cd-related-item p {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
}

/* レッスン一覧 (右カラム) */
.cd-lessons {
  position: sticky;
  top: 96px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.cd-lessons-course {
  margin: 0;
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--color-text);
}
.cd-lessons-subtitle {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--color-text-sub);
}
.cd-lessons-progress {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: var(--color-bg-alt);
  border-radius: 12px;
}
.cd-lessons-progress-bar {
  width: 100%;
  height: 5px;
  background: rgba(26,26,26,0.08);
  border-radius: 999px;
  overflow: hidden;
}
.cd-lessons-progress-bar span {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.cd-lessons-progress-text {
  font-size: 12px;
  color: var(--color-text-sub);
}
.cd-lessons-progress-text b {
  color: var(--color-text);
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}

.cd-lesson-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cd-lesson-item {
  display: flex;
  gap: 14px;
  padding: 12px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  align-items: flex-start;
}
.cd-lesson-item:hover { background: rgba(26,26,26,0.03); }
.cd-lesson-mark {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-mute);
  border: 1.5px solid var(--color-border-strong);
  background: var(--color-surface);
  margin-top: 2px;
}
.cd-lesson-item.is-done .cd-lesson-mark {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #FFFFFF;
}
.cd-lesson-item.is-current {
  background: var(--color-accent-soft);
}
.cd-lesson-item.is-current .cd-lesson-mark {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #FFFFFF;
  padding-left: 2px;
}
.cd-lesson-item > div { flex: 1; min-width: 0; }
.cd-lesson-item-num {
  margin: 0 0 2px;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-mute);
}
.cd-lesson-item.is-current .cd-lesson-item-num { color: var(--color-accent-dark); }
.cd-lesson-item-title {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}
.cd-lesson-item.is-done .cd-lesson-item-title { color: var(--color-text-sub); }
.cd-lesson-item-time {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--color-text-mute);
}

@media (max-width: 1100px) {
  .cd-main { grid-template-columns: 1fr; gap: 24px; padding: 28px 32px 80px; }
  .cd-lessons {
    position: static;
    max-height: none;
  }
}
@media (max-width: 640px) {
  .cd-breadcrumb-inner { padding: 14px 20px; font-size: 12px; }
  .cd-main { padding: 24px 20px 64px; }
  .cd-lesson-title { font-size: 26px; }
  .cd-lesson-actions { flex-direction: column; }
  .cd-btn { width: 100%; justify-content: center; }
}

/* ==========================================================
   運営管理 (super-admin.html)
   ========================================================== */

.sa-header { background: rgba(26, 26, 26, 0.03); }

.sa-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-left: 4px;
}

/* トレンド表示 */
.sa-trend {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 500;
}
.sa-trend--up { color: #3B9A5F; }
.sa-trend--down { color: #C04B4B; }
.sa-trend--ok { color: var(--color-accent-dark); }

/* 棒グラフ */
.sa-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  height: 200px;
  padding: 8px 4px 0;
  margin-top: 4px;
}
.sa-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
  justify-content: flex-end;
}
.sa-bar span {
  width: 100%;
  max-width: 48px;
  background: var(--color-bg-alt);
  border-radius: 6px 6px 0 0;
  transition: background 0.3s;
}
.sa-bar.is-current span {
  background: var(--color-accent);
}
.sa-bar small {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--color-text-mute);
  letter-spacing: 0.02em;
}
.sa-bar b {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: var(--color-text-sub);
  font-weight: 600;
}
.sa-bar.is-current b { color: var(--color-accent-dark); }

/* アラート */
.sa-alerts-count {
  background: var(--color-accent);
  color: #FFFFFF;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
}
.sa-alert-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sa-alert {
  display: flex;
  gap: 12px;
  padding: 14px 14px;
  border-radius: 12px;
  background: var(--color-bg-alt);
}
.sa-alert-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
}
.sa-alert--warn .sa-alert-icon { background: #E0A84E; }
.sa-alert--info .sa-alert-icon { background: var(--color-accent); }
.sa-alert--ok .sa-alert-icon { background: #3B9A5F; }
.sa-alert-title {
  margin: 0 0 3px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}
.sa-alert-text {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-sub);
  line-height: 1.55;
}

/* 状態ラベル */
.sa-status {
  font-size: 8px;
  margin-right: 4px;
  vertical-align: middle;
}
.sa-status--active { color: #3B9A5F; }
.sa-status--new { color: var(--color-accent); }
.sa-status--risk { color: #E0A84E; }
.sa-status--pending { color: var(--color-text-mute); }

/* コンテンツリスト */
.sa-content-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.sa-content-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}
.sa-content-list li:last-child { border-bottom: none; padding-bottom: 0; }
.sa-content-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.sa-content-body { flex: 1; min-width: 0; }
.sa-content-name {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.sa-content-meta {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--color-text-sub);
}
.sa-content-footer {
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-sub);
}
.sa-content-footer b { color: var(--color-text); font-weight: 600; }

/* 外部連携リンク */
.sa-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sa-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.2s var(--ease);
}
.sa-link:hover {
  border-color: var(--color-border-strong);
  background: var(--color-bg-alt);
  transform: translateY(-1px);
}
.sa-link-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.sa-link-body { flex: 1; min-width: 0; }
.sa-link-name { margin: 0; font-size: 14px; font-weight: 600; color: var(--color-text); }
.sa-link-meta { margin: 2px 0 0; font-size: 12px; color: var(--color-text-sub); }
.sa-link-arrow { color: var(--color-text-mute); font-size: 18px; }
.sa-link:hover .sa-link-arrow { color: var(--color-accent); }

/* KPI: MRR ブレイクダウン */
.sa-kpi-mrr { gap: 12px; }
.sa-kpi-source {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.sa-kpi-synced {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  color: #3B9A5F;
  letter-spacing: 0.08em;
}
.sa-kpi-breakdown {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  background: var(--color-bg-alt);
  border-radius: 10px;
  font-size: 12px;
  color: var(--color-text-sub);
}
.sa-kpi-breakdown > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.sa-kpi-breakdown b {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}
.sa-kpi-divider {
  height: 1px;
  background: var(--color-border);
  padding: 0 !important;
  margin: 2px 0;
}
.sa-kpi-free { color: var(--color-accent) !important; }

.sa-badge-free {
  display: inline-block;
  padding: 2px 8px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  margin-left: 4px;
  letter-spacing: 0.02em;
}

@media (max-width: 640px) {
  .sa-badge { display: none; }
  .sa-chart { height: 160px; gap: 6px; }
  .sa-bar small, .sa-bar b { font-size: 10px; }
}

/* ============================================================
   認証メール送信完了画面 (signup後の待機画面)
   ============================================================ */
.auth-sent {
  text-align: center;
  padding: 16px 0 8px;
}
.auth-sent__icon {
  width: 96px;
  height: 96px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-sent__title {
  font-family: 'Noto Serif JP', serif;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin: 0 0 16px;
  line-height: 1.4;
}
.auth-sent__lead {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.8;
  margin: 0 0 32px;
}
.auth-sent__lead b {
  color: var(--color-accent-dark);
  font-weight: 600;
  display: inline-block;
  word-break: break-all;
}
.auth-sent__steps {
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 0 0 24px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-sent__step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.auth-sent__step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-sent__step p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  padding-top: 4px;
}
.auth-sent__step p b {
  font-weight: 600;
  color: var(--color-accent-dark);
}
.auth-sent__note {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.7;
  margin: 0 0 24px;
  padding: 14px 16px;
  background: rgba(199, 122, 82, 0.04);
  border-left: 3px solid var(--color-accent);
  border-radius: 4px;
  text-align: left;
}
.auth-sent__note a {
  color: var(--color-accent-dark);
  font-weight: 600;
}
.auth-sent__back {
  background: none;
  border: none;
  color: var(--color-text-sub);
  font-size: 13px;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.2s;
}
.auth-sent__back:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

@media (max-width: 640px) {
  .auth-sent__title { font-size: 22px; }
  .auth-sent__icon { width: 80px; height: 80px; margin-bottom: 20px; }
  .auth-sent__steps { padding: 16px 18px; }
}

/* ============================================================
   Googleメインボタン（強調版）/ メール登録折りたたみ
   ============================================================ */
.auth-google-btn--main {
  height: 60px;
  font-size: 16px;
  font-weight: 600;
  background: var(--color-text);
  color: #fff;
  border: 1px solid var(--color-text);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(26, 26, 26, 0.12);
  transition: all 0.2s ease;
  margin-top: 8px;
}
.auth-google-btn--main:hover {
  background: #000;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(26, 26, 26, 0.18);
}
.auth-google-btn--main svg {
  background: #fff;
  border-radius: 50%;
  padding: 2px;
  width: 28px;
  height: 28px;
}
.auth-note--center {
  text-align: center;
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-sub);
}

/* メール登録 折りたたみ */
.auth-email-toggle {
  margin-top: 4px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}
.auth-email-toggle summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-sub);
  border-radius: 8px;
  transition: all 0.2s;
  user-select: none;
}
.auth-email-toggle summary::-webkit-details-marker { display: none; }
.auth-email-toggle summary:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}
.auth-email-toggle__arrow {
  display: inline-block;
  font-size: 12px;
  transition: transform 0.2s;
}
.auth-email-toggle[open] .auth-email-toggle__arrow {
  transform: rotate(180deg);
}
.auth-email-toggle__body {
  margin-top: 16px;
  padding: 20px;
  background: var(--color-bg-alt);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* セカンダリsubmit（メール登録の中） */
.auth-submit--secondary {
  background: #fff;
  color: var(--color-text);
  border: 1.5px solid var(--color-border-strong);
}
.auth-submit--secondary:hover {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

/* ============================================================
   メール登録セクション（常時表示・Microsoft 365企業向け）
   ============================================================ */
.auth-email-section {
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-email-section__title {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--color-text);
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.auth-email-section__title b {
  font-weight: 600;
  font-size: 15px;
}
.auth-email-section__title small {
  font-size: 11.5px;
  color: var(--color-text-sub);
  font-weight: 400;
}
@media (max-width: 640px) {
  .auth-email-section { padding: 20px 16px; }
  .auth-email-section__title small { display: block; width: 100%; margin-top: 2px; }
}