/* ゆわね美術館 — 管理画面
   admin.museum.yuwane.com
   ---------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400&family=IBM+Plex+Mono:wght@300;400&family=Noto+Sans+JP:wght@300;400&display=swap');

:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #767676;
  --border: #d8d8d8;
  --light: #f6f6f6;
  --light2: #eeeeee;
  --on: #1a7a3c;
  --on-bg: #e8f5ed;
  --off: #9a9a9a;
  --off-bg: #f0f0f0;
  --err: #c0392b;
  --err-bg: #fdf0ee;

  --serif: 'Noto Serif JP', serif;
  --sans: 'Noto Sans JP', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  background: var(--light);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}


/* ── HEADER ── */

.adm-header {
  background: var(--fg);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 52px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.adm-header-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.adm-brand-ja {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--bg);
}

.adm-brand-sep {
  color: rgba(255, 255, 255, 0.3);
  font-weight: 300;
}

.adm-brand-role {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.55);
}

.adm-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.adm-nav a {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.7);
  padding: 0 1.1rem;
  height: 52px;
  display: flex;
  align-items: center;
  transition: color 0.15s, background 0.15s;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.adm-nav a:hover,
.adm-nav a.active {
  color: var(--bg);
  background: rgba(255, 255, 255, 0.08);
}

.adm-logout {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.45) !important;
}


/* ── MAIN ── */

.adm-main {
  flex: 1;
  padding: 2.5rem 2rem;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

.adm-page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.adm-page-title {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
  color: var(--fg);
}

.adm-page-count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.back-link {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  transition: color 0.15s;
}

.back-link:hover {
  color: var(--fg);
}


/* ── TABLE ── */

.adm-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg);
  border: 1px solid var(--border);
}

.adm-table th {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-family: var(--mono);
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  background: var(--light);
}

.adm-table td {
  font-size: 13px;
  font-weight: 300;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--light2);
  vertical-align: middle;
  letter-spacing: 0.04em;
  color: var(--fg);
}

.adm-table tr:last-child td {
  border-bottom: none;
}

.adm-table tbody tr:hover td {
  background: var(--light);
}

.col-date {
  width: 7rem;
}

.col-status {
  width: 6rem;
  text-align: center;
}

.col-action {
  width: 9rem;
  text-align: right;
}

.cell-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.has-image {
  color: var(--muted);
  font-size: 10px;
  flex-shrink: 0;
}

time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}


/* ── TOGGLE BUTTON ── */

.toggle-btn {
  border: none;
  border-radius: 2rem;
  padding: 0.3rem 0.85rem;
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: opacity 0.15s;
}

.toggle-btn.on {
  background: var(--on-bg);
  color: var(--on);
}

.toggle-btn.off {
  background: var(--off-bg);
  color: var(--off);
}

.toggle-btn:hover {
  opacity: 0.75;
}


/* ── ROW ACTION BUTTONS ── */

.btn-edit,
.btn-delete {
  font-size: 12px;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
  margin-left: 0.4rem;
  display: inline-block;
  color: var(--fg);
}

.btn-edit:hover {
  border-color: var(--fg);
}

.btn-delete {
  color: var(--err);
  border-color: transparent;
}

.btn-delete:hover {
  border-color: var(--err);
}


/* ── PRIMARY BUTTON ── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  background: var(--fg);
  color: var(--bg);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.1em;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
  font-family: var(--sans);
}

.btn-primary:hover {
  opacity: 0.75;
}

.btn-cancel {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.25rem;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.15s;
}

.btn-cancel:hover {
  color: var(--fg);
}


/* ── FORM ── */

.adm-form {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2rem 2rem 2.5rem;
  max-width: 680px;
}

.form-field {
  margin-bottom: 1.75rem;
}

.form-field label {
  display: block;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--fg) !important;
  margin-bottom: 0.5rem;
}

.req {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--err);
  margin-left: 0.4rem;
}

.form-field input[type="text"],
.form-field input[type="password"],
.form-field input[type="email"],
.form-field input[type="number"],
.form-field textarea,
.form-field select {
  display: block;
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-size: 14px;
  font-family: var(--sans);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
  box-sizing: border-box;
}

.form-field input[type="text"]:focus,
.form-field input[type="password"]:focus,
.form-field input[type="email"]:focus,
.form-field input[type="number"]:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--fg);
}

.form-field textarea {
  resize: vertical;
  line-height: 1.8;
}

.form-field input[type="file"] {
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 300;
  color: var(--muted);
  display: block;
  padding: 0.5rem 0;
}

.field-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-top: 0.4rem;
}

.form-field-inline label {
  display: inline-flex;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 13px;
  font-weight: 300;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.current-image img {
  display: block;
  margin-top: 0.5rem;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--light2);
  margin-top: 0.5rem;
}


/* ── ERRORS ── */

.adm-errors {
  background: var(--err-bg);
  border: 1px solid #f0a09a;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 680px;
}

.adm-errors p {
  font-size: 13px;
  color: var(--err);
  letter-spacing: 0.04em;
  line-height: 1.8;
}


/* ── EMPTY STATE ── */

.adm-empty {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 4rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.06em;
  display: flex;
  flex-direction: column;
  align-items: center;
}


/* ── LOGIN PAGE ── */

.login-page {
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-wrap {
  width: 100%;
  max-width: 360px;
  padding: 1rem;
}

.login-brand {
  text-align: center;
  margin-bottom: 2.5rem;
}

.login-brand-ja {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--fg);
  margin-bottom: 0.4rem;
}

.login-brand-en {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--muted);
}

.login-form {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2rem;
}

.login-form .form-field {
  margin-bottom: 1.25rem;
}

.login-form .form-field input {
  width: 100%;
  box-sizing: border-box;
}

.login-form .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 1.75rem;
}

.login-error {
  font-size: 12px;
  color: var(--err);
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  text-align: center;
  padding: 0.75rem 1rem;
  background: var(--err-bg);
  border: 1px solid #f0a09a;
}

/* オートフィル時の虹色背景・文字色をリセット */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--fg);
  -webkit-box-shadow: 0 0 0px 1000px var(--bg) inset;
  transition: background-color 5000s ease-in-out 0s;
}


/* ── FOOTER ── */

.adm-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  background: var(--bg);
  flex-shrink: 0;
}

.adm-footer a {
  color: var(--muted);
  transition: color 0.15s;
}

.adm-footer a:hover {
  color: var(--fg);
}


/* ── RESPONSIVE ── */

@media (max-width: 600px) {
  .adm-main {
    padding: 1.5rem 1.25rem;
  }

  .adm-header {
    padding: 0 1.25rem;
  }

  .adm-page-head {
    flex-direction: column;
    gap: 1rem;
  }

  .adm-form {
    padding: 1.5rem;
  }

  .col-date {
    display: none;
  }

  .adm-footer {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
}