/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  color: #333;
  background: #f5f5f5;
  line-height: 1.6;
}

a {
  color: #1a73e8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== Home Page ===== */
.home-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 20px 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.home-header {
  text-align: center;
  margin-bottom: 40px;
}

.home-title {
  font-size: 48px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.home-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Search Box ===== */
.search-box {
  width: 100%;
  max-width: 640px;
  margin-bottom: 60px;
}

.search-box form {
  display: flex;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.search-box form:focus-within {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 14px 24px;
  font-size: 16px;
  background: transparent;
  color: #333;
}

.search-input::placeholder {
  color: #aaa;
}

.search-btn {
  border: none;
  background: #667eea;
  color: #fff;
  padding: 14px 28px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s;
}

.search-btn:hover {
  background: #5a6fd6;
}

/* ===== Card Grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  width: 100%;
  max-width: 960px;
}

@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: #333;
}

.card-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  text-decoration: none;
}

.card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-emoji {
  font-size: 28px;
}

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

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-subtitle {
  font-size: 13px;
  color: #999;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== Home Footer ===== */
.home-footer {
  margin-top: auto;
  padding-top: 40px;
}

.home-footer a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.home-footer a:hover {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

/* ===== Login Page ===== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f5f5;
}

.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.login-title {
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 24px;
  color: #333;
}

.login-error {
  background: #fef2f2;
  color: #dc2626;
  padding: 10px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  text-align: center;
}

.login-form .form-group {
  margin-bottom: 16px;
}

/* ===== Admin Layout ===== */
.admin-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-nav {
  display: flex;
  align-items: center;
  background: #1f2937;
  color: #fff;
  padding: 0 24px;
  height: 56px;
  gap: 24px;
}

.admin-nav-brand {
  font-size: 18px;
  font-weight: 700;
  margin-right: 16px;
}

.admin-nav-links {
  display: flex;
  gap: 4px;
}

.admin-nav-link {
  color: rgba(255, 255, 255, 0.7);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.admin-nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
}

.admin-nav-link.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.admin-nav-user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.admin-main {
  flex: 1;
  padding: 32px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 600;
  color: #111;
}

/* ===== Admin Table ===== */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.admin-table th,
.admin-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #eee;
  font-size: 14px;
}

.admin-table th {
  background: #f9fafb;
  font-weight: 600;
  color: #555;
}

.admin-table td a {
  color: #1a73e8;
  max-width: 200px;
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}

.admin-table td.actions {
  white-space: nowrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s, opacity 0.2s;
  text-decoration: none;
  line-height: 1.5;
}

.btn:hover {
  opacity: 0.9;
  text-decoration: none;
}

.btn-primary {
  background: #667eea;
  color: #fff;
}

.btn-primary:hover {
  background: #5a6fd6;
}

.btn-secondary {
  background: #e5e7eb;
  color: #374151;
}

.btn-secondary:hover {
  background: #d1d5db;
}

.btn-danger {
  background: #ef4444;
  color: #fff;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-block {
  display: block;
  width: 100%;
}

/* ===== Forms ===== */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #374151;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.2s;
  outline: none;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.form-group input[type="checkbox"] {
  margin-right: 6px;
  width: auto;
}

.input-readonly {
  background: #f3f4f6 !important;
  color: #6b7280;
  cursor: not-allowed;
}

.required {
  color: #ef4444;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.form-error {
  background: #fef2f2;
  color: #dc2626;
  padding: 10px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
}

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-success {
  background: #dcfce7;
  color: #16a34a;
}

.badge-secondary {
  background: #f3f4f6;
  color: #6b7280;
}

.form-success {
  background: #f0fdf4;
  color: #16a34a;
  padding: 10px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
}

/* ===== Home Page with Background ===== */
.home-container.has-background {
  position: relative;
  background: none;
}

.home-container.has-background::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  z-index: 0;
}

.home-container.has-background > * {
  position: relative;
  z-index: 1;
}

/* ===== Site Subtitle ===== */
.site-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 4px;
}

/* ===== Card Icon Image ===== */
.card-icon-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 4px;
}

/* ===== Upload Button ===== */
.upload-btn-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.upload-btn {
  display: inline-block;
  padding: 6px 14px;
  background: #667eea;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
  line-height: 1.5;
}

.upload-btn:hover {
  background: #5a6fd6;
}

.upload-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.upload-status {
  font-size: 13px;
  margin-left: 4px;
}

.upload-success {
  color: #16a34a;
}

.upload-error {
  color: #dc2626;
}

/* ===== Background Preview ===== */
.background-preview {
  margin-top: 10px;
}

.upload-preview-img {
  max-width: 320px;
  max-height: 180px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: block;
  margin-bottom: 6px;
}

.preview-link {
  font-size: 13px;
  color: #1a73e8;
}

/* ===== Form Section Title ===== */
.form-section-title {
  font-size: 18px;
  font-weight: 600;
  color: #374151;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e7eb;
}

.form-section-title:first-of-type {
  margin-top: 0;
}

/* ===== Badges — danger variant ===== */
.badge-danger {
  background: #fef2f2;
  color: #dc2626;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding: 12px 0;
}

.pagination-info {
  font-size: 14px;
  color: #6b7280;
}

/* ===== User-Agent cell truncation ===== */
.ua-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: #9ca3af;
}

/* ===== Code style ===== */
code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "Cascadia Code", "Fira Code", "Consolas", monospace;
  font-size: 13px;
}

/* ===== Admin nav responsive ===== */
@media (max-width: 900px) {
  .admin-nav {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 16px;
    gap: 8px;
  }
  .admin-nav-links {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
    gap: 2px;
  }
  .admin-nav-link {
    padding: 4px 10px;
    font-size: 13px;
  }
}

/* ===== Whitelist Notice ===== */
.whitelist-notice {
  background: #fef3c7;
  color: #92400e;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  border: 1px solid #fbbf24;
}

.whitelist-notice.notice-info {
  background: #eff6ff;
  color: #1e40af;
  border-color: #93c5fd;
}

/* ===== Stats Grid ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: #6b7280;
}

/* ===== Badge Variants ===== */
.badge-primary {
  background: #eff6ff;
  color: #2563eb;
}

.badge-warning {
  background: #fffbeb;
  color: #d97706;
}

/* ===== Detail Cell ===== */
.detail-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

/* ===== Filter Form ===== */
.filter-form {
  background: #fff;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.filter-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-group label {
  font-size: 13px;
  font-weight: 500;
  color: #374151;
}

.filter-group input[type="text"],
.filter-group select {
  padding: 6px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  outline: none;
  min-width: 160px;
}

.filter-group input:focus,
.filter-group select:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.filter-actions-group {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}