/* ========== CSS Variables & Reset ========== */
:root {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-card: #222539;
  --bg-card-hover: #2a2e45;
  --bg-input: #181b28;
  --border-color: #2e3348;
  --border-focus: #6c5ce7;
  --text-primary: #e8e8f0;
  --text-secondary: #8b8fa8;
  --text-muted: #5a5e78;
  --accent: #6c5ce7;
  --accent-hover: #7e6ff0;
  --accent-glow: rgba(108, 92, 231, 0.25);
  --success: #00cec9;
  --success-bg: rgba(0, 206, 201, 0.12);
  --danger: #ff6b6b;
  --danger-bg: rgba(255, 107, 107, 0.12);
  --warning: #ffa502;
  --warning-bg: rgba(255, 165, 2, 0.12);
  --spicy-1: #00b894;
  --spicy-2: #0984e3;
  --spicy-3: #e17055;
  --spicy-4: #d63031;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  font-size: 15px;
  overflow-y: scroll;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ========== Utilities ========== */
.text-muted {
  color: var(--text-muted);
}
.text-success {
  color: var(--success);
}
.text-danger {
  color: var(--danger);
}

/* ========== Login Page ========== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(
      ellipse at 50% 0%,
      rgba(108, 92, 231, 0.15) 0%,
      transparent 60%
    ),
    var(--bg-primary);
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  animation: bounce 2s infinite;
}

.login-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a29bfe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* ========== Forms ========== */
.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.input-wrapper {
  position: relative;
}

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font);
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea {
  resize: vertical;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b8fa8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.btn-toggle-pw {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.btn-toggle-pw:hover {
  opacity: 1;
}

.error-message {
  margin-top: 0.75rem;
  padding: 0.6rem 0.8rem;
  background: var(--danger-bg);
  color: var(--danger);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: center;
}

.char-count {
  text-align: right;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.3rem;
  font-size: 0.95rem;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-card);
  color: var(--text-primary);
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-card-hover);
}
.btn:active {
  transform: scale(0.97);
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #ff5252;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

.btn-status {
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  border-radius: 20px;
  font-weight: 600;
}

.btn-status.active {
  background: var(--success-bg);
  color: var(--success);
  border-color: rgba(0, 206, 201, 0.3);
}

.btn-status.inactive {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: rgba(255, 107, 107, 0.3);
}

/* ========== App Header ========== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-logo {
  font-size: 1.5rem;
}

.app-header h1 {
  font-size: 1.2rem;
  font-weight: 600;
}

/* ========== Filter Bar (三栏第一栏) ========== */
.list-main {
  padding: 1.25rem 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.filter-bar {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.filter-select {
  min-width: 140px;
}

/* ========== Stats Bar (三栏第二栏) ========== */
.stats-bar {
  margin-top: 1rem;
}

.stats-bar-inner {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  font-size: 1rem;
}

.stats-bar-inner strong {
  color: var(--text-secondary);
}

/* ========== Table (三栏第三栏) ========== */
.card-table {
  margin-top: 1rem;
}

.table-container {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 0.8rem 1rem;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(46, 51, 72, 0.5);
  font-size: 0.95rem;
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background var(--transition);
}

.data-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.data-table tbody tr.row-inactive {
  opacity: 0.55;
}

.col-id {
  width: 70px;
}
.col-type {
  width: 130px;
}
.col-content {
  min-width: 250px;
}
.col-spicy {
  width: 100px;
  text-align: center;
}
.col-status {
  width: 90px;
  text-align: center;
}
.col-stats {
  width: 180px;
}
.col-actions {
  width: 140px;
  text-align: right;
}

/* 题目内容 - 完整显示，允许换行 */
.content-cell {
  max-width: 500px;
  word-wrap: break-word;
  word-break: break-all;
  white-space: normal;
  line-height: 1.5;
}

/* ========== 题目类型标签 ========== */
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.tag-type-1 {
  background: rgba(25, 118, 210, 0.15);
  color: #64b5f6;
}
.tag-type-2 {
  background: rgba(123, 31, 162, 0.15);
  color: #ce93d8;
}
.tag-type-3 {
  background: rgba(245, 124, 0, 0.15);
  color: #ffb74d;
}
.tag-type-4 {
  background: rgba(198, 40, 40, 0.15);
  color: #ef9a9a;
}
.tag-type-5 {
  background: rgba(56, 142, 60, 0.15);
  color: #81c784;
}
.tag-type-6 {
  background: rgba(194, 24, 91, 0.15);
  color: #f48fb1;
}

/* ========== 刺激度标签 ========== */
.spicy-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 600;
}
.spicy-1 {
  background: rgba(0, 184, 148, 0.15);
  color: var(--spicy-1);
}
.spicy-2 {
  background: rgba(9, 132, 227, 0.15);
  color: var(--spicy-2);
}
.spicy-3 {
  background: rgba(225, 112, 85, 0.15);
  color: var(--spicy-3);
}
.spicy-4 {
  background: rgba(214, 48, 49, 0.15);
  color: var(--spicy-4);
}

/* ========== 统计数据展示 ========== */
.stats-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.stat-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ========== 操作按钮 ========== */
.action-cell {
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
}

.table-empty,
.table-loading {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ========== Spinner ========== */
.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 0.75rem;
}

/* ========== Pagination ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding: 0.5rem 0;
}

.pagination-info {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pagination-pages {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0 0.5rem;
}

.page-size-label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-right: 0.5rem;
}

.page-size-select {
  width: auto;
  min-width: 60px;
  padding: 0.3rem 1.5rem 0.3rem 0.5rem;
  font-size: 0.85rem;
}

.page-jump-label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-right: 0.5rem;
  white-space: nowrap;
}

input.page-jump-input {
  width: 60px;
  padding: 0.3rem 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  -moz-appearance: textfield;
  appearance: textfield;
}

input.page-jump-input::-webkit-outer-spin-button,
input.page-jump-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.version-info {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 1.5rem 0 1rem;
  grid-column: 1 / -1;
}

/* ========== Editor ========== */
.editor-main {
  padding: 1.25rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.editor-form {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.25rem;
  align-items: start;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 0;
}

.card + .card {
  margin-top: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.label-optional {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Info grid */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.info-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  font-size: 0.95rem;
  font-weight: 500;
}

/* Tags input */
.tags-input-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  min-height: 42px;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
  cursor: text;
}

.tags-input-wrapper:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent);
  border-radius: 4px;
  font-size: 0.85rem;
  animation: fadeIn 0.2s ease;
}

.tag-remove {
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--transition);
  font-size: 0.9rem;
  line-height: 1;
}
.tag-remove:hover {
  opacity: 1;
}

.tags-input {
  flex: 1;
  min-width: 100px;
  border: none !important;
  background: transparent !important;
  padding: 0.2rem !important;
  box-shadow: none !important;
  font-size: 0.9rem;
}

/* ========== Switch 开关（替代 toggle） ========== */
.switch-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-color);
  transition: 0.3s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-muted);
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: #fff;
}

/* ========== Audit list ========== */
.audit-list {
  max-height: 400px;
  overflow-y: auto;
}

.audit-item {
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(46, 51, 72, 0.3);
}

.audit-item:last-child {
  border-bottom: none;
}

.audit-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.audit-action {
  font-weight: 600;
  font-size: 0.85rem;
}

.audit-action.create {
  color: var(--success);
}
.audit-action.update {
  color: var(--accent);
}
.audit-action.deactivate {
  color: var(--danger);
}
.audit-action.activate {
  color: var(--warning);
}

.audit-time {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.audit-ip {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* 审计日志变更对比 */
.audit-diff {
  margin-top: 0.4rem;
  padding: 0.5rem 0.6rem;
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.diff-item {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 0.25rem;
  flex-wrap: wrap;
  line-height: 1.5;
}

.diff-item:last-child {
  margin-bottom: 0;
}

.diff-field {
  color: var(--text-secondary);
  font-weight: 600;
  min-width: 60px;
}

.diff-field::after {
  content: "：";
}

.diff-old {
  color: var(--danger);
  text-decoration: line-through;
  opacity: 0.8;
  word-break: break-all;
}

.diff-arrow {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.diff-new {
  color: var(--success);
  font-weight: 500;
  word-break: break-all;
}

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
  backdrop-filter: blur(4px);
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  max-width: 400px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.3s ease;
}

.modal-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.modal-card p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ========== Toast ========== */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 0.75rem 1.3rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation:
    slideInRight 0.3s ease,
    fadeOut 0.3s ease 2.7s forwards;
  max-width: 360px;
}

.toast-success {
  background: var(--success);
  color: #fff;
}

.toast-error {
  background: var(--danger);
  color: #fff;
}

.toast-info {
  background: var(--accent);
  color: #fff;
}

/* ========== Animations ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* ========== Responsive ========== */
@media (max-width: 860px) {
  .editor-form {
    grid-template-columns: 1fr;
  }
  .filter-bar {
    flex-direction: column;
  }
  .filter-select {
    min-width: auto;
    width: 100%;
  }
  .data-table {
    font-size: 0.85rem;
  }
  .col-stats {
    display: none;
  }
}

@media (max-width: 600px) {
  .login-card {
    padding: 1.5rem;
  }
  .list-main,
  .editor-main {
    padding: 0.75rem;
  }
  .col-type {
    display: none;
  }
  .pagination {
    flex-direction: column;
    gap: 0.5rem;
  }
  .stats-bar-inner {
    flex-direction: column;
    gap: 8px;
  }
}