/* Kiwi Analysis Platform — Admin UI Styles */

:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-primary: #2d7d46;
  --color-primary-dark: #1f5a31;
  --color-primary-light: #e8f5e9;
  --color-danger: #c62828;
  --color-danger-light: #ffebee;
  --color-warning: #f9a825;
  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-border: #dee2e6;
  --color-success: #2d7d46;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.12);
  --max-width: 1200px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

/* Loading */
.loading {
  text-align: center;
  padding: 4rem;
  color: var(--color-text-muted);
}

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.login-box {
  background: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
}

.login-box h1 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  color: var(--color-primary-dark);
}

.login-box p {
  margin: 0 0 1.5rem;
  color: var(--color-text-muted);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  text-decoration: none;
}

.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #a31e1e; }

.btn-secondary { background: var(--color-border); color: var(--color-text); }
.btn-secondary:hover { background: #ced4da; }

.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.875rem; }

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

.error-text {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Navbar */
.navbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-primary-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
}

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title {
  margin: 0 0 1rem;
  font-size: 1.125rem;
  font-weight: 600;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-card .stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Table */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #fafafa;
}

tr:hover td { background: #f8f9fa; }

td.actions {
  white-space: nowrap;
}

/* Status badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success { background: var(--color-primary-light); color: var(--color-primary-dark); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-warning { background: #fff8e1; color: #f57f17; }

/* Filters */
.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.filters .form-group {
  margin-bottom: 0;
  min-width: 160px;
}

.filters .form-group input,
.filters .form-group select {
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.pagination button {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius);
  cursor: pointer;
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Image preview */
.image-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.image-preview-box {
  text-align: center;
}

.image-preview-box img {
  max-width: 100%;
  max-height: 500px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: zoom-in;
}

.image-preview-box .caption {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
}

.modal-content img {
  max-width: 100%;
  max-height: 85vh;
  display: block;
}

/* Measurement detail */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.detail-item {
  background: #fafafa;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
}

.detail-item .label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.detail-item .value {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 0.125rem;
}

/* Alert messages */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}

.alert-success { background: var(--color-primary-light); color: var(--color-primary-dark); }
.alert-danger { background: var(--color-danger-light); color: var(--color-danger); }

/* Responsive */
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .image-preview-grid { grid-template-columns: 1fr; }
  .navbar-inner { flex-wrap: wrap; height: auto; padding: 0.75rem 0; }
  .navbar-nav { gap: 1rem; }
  .filters { flex-direction: column; }
  .filters .form-group { min-width: 100%; }
}