/* 管理后台 · 与前台「菜趣」同一套视觉 */
:root {
  --ink: #1c1917;
  --ink-soft: #44403c;
  --muted: #78716c;
  --line: rgba(28, 25, 23, 0.08);
  --cream: #faf7f2;
  --paper: rgba(255, 253, 248, 0.96);
  --terracotta: #c45c3e;
  --terracotta-deep: #9a3d2a;
  --olive: #3f5d4a;
  --olive-light: #e8f0ea;
  --gold: #b8956c;
  --gold-light: #f3ead8;
  --danger: #b91c1c;
  --danger-bg: #fff1f2;
  --shadow-sm: 0 2px 8px rgba(28, 25, 23, 0.06);
  --shadow-md: 0 12px 40px rgba(28, 25, 23, 0.1);
  --shadow-lg: 0 24px 60px rgba(28, 25, 23, 0.14);
  --radius-lg: 20px;
  --radius-md: 14px;
  --font-ui: "Noto Sans SC", system-ui, sans-serif;
  --font-serif: "Noto Serif SC", Georgia, serif;
  --font-display: "ZCOOL XiaoWei", var(--font-serif);
}

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

.admin-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  font-size: 15px;
  color: var(--ink);
  line-height: 1.6;
  background: var(--cream);
}

.hidden {
  display: none !important;
}

/* ----- 背景（与前台一致） ----- */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.page-bg__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(196, 92, 62, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(63, 93, 74, 0.08), transparent),
    linear-gradient(180deg, #fdfbf7 0%, #f5ebe3 55%, #efe4d8 100%);
}

.page-bg__grain {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.page-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent 75%);
  opacity: 0.45;
}

.page-bg__orb {
  position: absolute;
  width: min(42vw, 240px);
  height: min(42vw, 240px);
  max-width: 240px;
  max-height: 240px;
  border-radius: 50%;
  filter: blur(1px);
}

.page-bg__orb--a {
  top: -5%;
  right: -6%;
  background: radial-gradient(circle at 35% 35%, rgba(232, 165, 152, 0.5), rgba(244, 212, 168, 0.2) 55%, transparent 70%);
  opacity: 0.8;
}

.page-bg__orb--b {
  bottom: 8%;
  left: -8%;
  background: radial-gradient(circle at 60% 40%, rgba(125, 155, 131, 0.38), rgba(196, 212, 200, 0.15) 60%, transparent 72%);
  opacity: 0.65;
}

/* ----- 登录 ----- */
.login-layer {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
}

.login-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: 2rem 1.75rem 1.75rem;
  background: var(--paper);
  border: 1px solid rgba(28, 25, 23, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.login-card__ribbon {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--terracotta), var(--gold), var(--olive));
}

.login-card__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
}

.login-card__mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--terracotta), #e07a5f);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  flex-shrink: 0;
}

.login-card__en {
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  color: var(--muted);
  font-weight: 600;
}

.login-card__title {
  margin: 0.15rem 0 0;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 400;
  letter-spacing: 0.2em;
}

.login-card__sub {
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-form__field {
  display: block;
  text-align: left;
}

.login-form__label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--olive);
  margin-bottom: 0.4rem;
}

.login-form input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(28, 25, 23, 0.12);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-form input:focus {
  outline: none;
  border-color: rgba(196, 92, 62, 0.45);
  box-shadow: 0 0 0 3px rgba(196, 92, 62, 0.12);
}

.login-card__back {
  display: inline-block;
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.login-card__back:hover {
  color: var(--terracotta);
}

.msg-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0;
  text-align: center;
}

/* ----- 主按钮（前台同款气质） ----- */
.btn-admin-primary {
  position: relative;
  cursor: pointer;
  border: none;
  width: 100%;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  background: linear-gradient(145deg, #d66b4f 0%, var(--terracotta-deep) 100%);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  box-shadow:
    0 4px 0 #6d2e20,
    0 10px 28px rgba(196, 92, 62, 0.35);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-admin-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow:
    0 4px 0 #6d2e20,
    0 14px 36px rgba(196, 92, 62, 0.42);
}

.btn-admin-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-admin-primary--inline {
  width: auto;
  padding: 0.55rem 1.35rem;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  box-shadow:
    0 3px 0 #6d2e20,
    0 8px 22px rgba(196, 92, 62, 0.32);
}

.btn-admin-primary__shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.18) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: shine-admin 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes shine-admin {
  0%,
  85%,
  100% {
    transform: translateX(-100%);
  }
  92% {
    transform: translateX(100%);
  }
}

.btn-admin-ghost {
  padding: 0.5rem 1rem;
  border: 1px solid rgba(28, 25, 23, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-admin-ghost:hover {
  background: var(--cream);
  border-color: rgba(28, 25, 23, 0.18);
}

/* ----- 应用壳 ----- */
.app-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1120px;
  margin: 0 auto;
  width: 100%;
  padding: 1rem 1.25rem;
  backdrop-filter: blur(14px);
  background: rgba(250, 247, 242, 0.82);
  border-bottom: 1px solid rgba(28, 25, 23, 0.06);
}

.admin-topnav__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.admin-topnav__mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--terracotta), #e07a5f);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.admin-topnav__en {
  margin: 0;
  font-size: 0.58rem;
  letter-spacing: 0.24em;
  color: var(--muted);
  font-weight: 600;
}

.admin-topnav__zh {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.2em;
}

.admin-topnav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.admin-topnav__hint {
  font-size: 0.8rem;
  color: var(--muted);
}

.admin-main {
  flex: 1;
  max-width: 1120px;
  margin: 0 auto;
  width: 100%;
  padding: 1.25rem 1.25rem 2.5rem;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-bottom: 1.25rem;
}

.admin-link-front {
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}

.admin-link-front:hover {
  background: rgba(28, 25, 23, 0.05);
  color: var(--terracotta);
}

.admin-table-card {
  position: relative;
  background: var(--paper);
  border: 1px solid rgba(28, 25, 23, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.admin-table-card__ribbon {
  height: 4px;
  background: linear-gradient(90deg, var(--terracotta), var(--gold), var(--olive));
}

.table-wrap {
  overflow: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(28, 25, 23, 0.07);
}

.data-table th {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--olive);
  text-transform: uppercase;
  background: rgba(232, 240, 234, 0.45);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.6);
}

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

.row-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.row-actions button {
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: rgba(196, 92, 62, 0.1);
  color: var(--terracotta-deep);
  transition: background 0.2s;
}

.row-actions button:hover {
  background: rgba(196, 92, 62, 0.18);
}

.row-actions button.danger {
  background: var(--danger-bg);
  color: var(--danger);
}

.row-actions button.danger:hover {
  background: #ffe4e6;
}

/* ----- 弹窗 ----- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 25, 23, 0.45);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow: auto;
  background: var(--paper);
  border: 1px solid rgba(28, 25, 23, 0.08);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.35rem;
  box-shadow: var(--shadow-lg);
}

.modal-card__ribbon {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--terracotta), var(--gold), var(--olive));
}

.modal-card__title {
  margin: 0.35rem 0 1.1rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.12em;
}

.modal-field {
  display: block;
  margin-bottom: 1rem;
}

.modal-field__label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--olive);
  margin-bottom: 0.35rem;
}

.modal-field input,
.modal-field textarea {
  display: block;
  width: 100%;
  margin-top: 0;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(28, 25, 23, 0.12);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.modal-field textarea {
  resize: vertical;
  min-height: 5rem;
}

.modal-field input:focus,
.modal-field textarea:focus {
  outline: none;
  border-color: rgba(196, 92, 62, 0.4);
  box-shadow: 0 0 0 3px rgba(196, 92, 62, 0.1);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
  margin-top: 1.15rem;
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .admin-topnav {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-topnav__actions {
    width: 100%;
    justify-content: space-between;
  }
}