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

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-secondary: #64748b;
  --primary: #0ea5e9;
  --primary-hover: #0284c7;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal.active { display: flex; }

.auth-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.auth-header { text-align: center; margin-bottom: 2rem; }
.auth-header .logo { margin-bottom: 1rem; }
.auth-header h1 { font-size: 1.5rem; font-weight: 700; }
.auth-header .subtitle { color: var(--text-secondary); font-size: 0.875rem; margin-top: 0.25rem; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.8125rem; font-weight: 600; margin-bottom: 0.375rem; color: var(--text-secondary); }
.form-group input, .form-group select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  transition: border-color 0.2s;
  background: var(--surface);
  color: var(--text);
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.auth-note { font-size: 0.75rem; color: var(--text-secondary); text-align: center; margin-top: 1rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--border); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover:not(:disabled) { background: var(--danger-hover); }
.btn-ghost { background: transparent; color: var(--text-secondary); padding: 0.5rem; }
.btn-ghost:hover { color: var(--text); background: var(--bg); }
.btn-full { width: 100%; justify-content: center; padding: 0.75rem; }
.btn-sm { padding: 0.375rem 0.625rem; font-size: 0.75rem; }

/* Navbar */
.deploy-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #0f172a, #1e3a5f);
  color: #e2e8f0;
  font-size: 0.8125rem;
}
.deploy-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  background: #f59e0b;
  color: #0f172a;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.8125rem;
  text-decoration: none;
  transition: background 0.2s;
}
.deploy-link:hover { background: #fbbf24; }

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-left { display: flex; align-items: center; gap: 1rem; }
.nav-right { display: flex; align-items: center; gap: 0.75rem; }

.logo-small {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  color: var(--text);
}
.logo-small:hover { color: var(--primary); }

.breadcrumb { display: flex; align-items: center; gap: 0.25rem; font-size: 0.8125rem; color: var(--text-secondary); }
.breadcrumb a { color: var(--primary); text-decoration: none; cursor: pointer; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 0.25rem; }

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box .search-icon {
  position: absolute;
  left: 0.75rem;
  color: var(--text-secondary);
  pointer-events: none;
}
.search-box input {
  padding: 0.5rem 0.75rem 0.5rem 2.25rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.8125rem;
  width: 280px;
  transition: border-color 0.2s, width 0.3s;
  background: var(--bg);
}
.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  width: 360px;
  background: var(--surface);
}

/* Main Content */
.main-content { padding: 1.5rem; max-width: 1400px; margin: 0 auto; }

/* Dashboard Cards */
.dashboard-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.dash-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.dash-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dash-card-icon.blue { background: #e0f2fe; color: #0284c7; }
.dash-card-icon.green { background: #dcfce7; color: #16a34a; }
.dash-card-icon.purple { background: #f3e8ff; color: #9333ea; }
.dash-card-icon.orange { background: #ffedd5; color: #ea580c; }
.dash-card-info { display: flex; flex-direction: column; }
.dash-card-value { font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
.dash-card-label { font-size: 0.8125rem; color: var(--text-secondary); }

/* Sections */
.section { margin-bottom: 1.5rem; }
.section-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.section-title { font-size: 1.125rem; font-weight: 700; }
.badge {
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
}

/* Tier Grid */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
}
.tier-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}
.tier-card-name { font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.25rem; }
.tier-card-count { font-size: 1.25rem; font-weight: 700; }
.tier-card-size { font-size: 0.8125rem; color: var(--text-secondary); }

/* Table */
.table-container {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow-x: auto;
  box-shadow: var(--shadow);
}
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
}
.data-table tbody tr { transition: background 0.15s; }
.data-table tbody tr:hover { background: #f1f5f9; }
.data-table tbody tr:last-child td { border-bottom: none; }
.checkbox-col { width: 40px; }

.bucket-name-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--primary);
  font-weight: 500;
}
.bucket-name-cell:hover { text-decoration: underline; }

.object-name-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--primary);
  font-weight: 500;
}
.object-name-cell:hover { text-decoration: underline; }

.action-cell { display: flex; gap: 0.375rem; }

/* Bucket View Header */
.bucket-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}
.bucket-info-cards { display: flex; gap: 0.75rem; }
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.info-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.info-value { font-size: 1.25rem; font-weight: 700; }
.bucket-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Object Detail */
.object-detail-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 2rem;
  box-shadow: var(--shadow);
  max-width: 700px;
}
.object-detail-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.object-title { font-size: 1.25rem; font-weight: 700; word-break: break-all; }
.object-key { font-size: 0.8125rem; color: var(--text-secondary); word-break: break-all; }

.object-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1.25rem;
  background: var(--bg);
  border-radius: 8px;
}
.meta-item { display: flex; flex-direction: column; }
.meta-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.meta-value { font-size: 0.9375rem; font-weight: 600; margin-top: 0.25rem; }

.object-detail-actions { display: flex; flex-direction: column; gap: 1rem; }
.tier-change {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.tier-change label { font-size: 0.875rem; font-weight: 600; }
.tier-change select {
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  background: var(--surface);
}
.action-buttons { display: flex; gap: 0.5rem; }

/* Toast */
.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 2000; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: white;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Loading */
.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: blur(2px);
  z-index: 900;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}
.loading-overlay.active { display: flex; }
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Confirm Dialog */
.confirm-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 2rem;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}
.confirm-card h3 { margin-bottom: 0.5rem; }
.confirm-card p { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 1.5rem; }
.confirm-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }

/* Search Section */
.search-section { margin-top: 1.5rem; position: relative; }
.search-box-large {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box-large .search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-secondary);
  pointer-events: none;
}
.search-box-large input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 3rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 1rem;
  background: var(--surface);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-box-large input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}
.search-results {
  margin-top: 0.5rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: none;
  max-height: 400px;
  overflow-y: auto;
}
.search-results.active { display: block; }
.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: #f1f5f9; }
.search-result-name { font-weight: 500; color: var(--primary); }
.search-result-date { font-size: 0.8125rem; color: var(--text-secondary); margin-left: auto; }
.search-hint { padding: 1rem; text-align: center; color: var(--text-secondary); font-size: 0.875rem; }

/* Pagination */
.pagination-controls { text-align: center; padding: 1rem; }

/* Create / Inline Forms */
.create-section { margin-top: 1.5rem; }
.inline-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.75rem 0;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex-wrap: wrap;
}
.inline-form input, .inline-form select {
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  background: var(--surface);
}
.inline-form input:focus, .inline-form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}
.inline-form input { flex: 1; min-width: 200px; }

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  margin-bottom: 1rem;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(14, 165, 233, 0.05);
}
.drop-zone-content { pointer-events: none; }
.drop-zone-content p {
  margin-top: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* IT Timeline */
.it-timeline {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.it-timeline-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #1e40af;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.it-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid #dbeafe;
  font-size: 0.875rem;
}
.it-step:last-child { border-bottom: none; }
.it-step-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.it-step-dot.active { background: #22c55e; }
.it-step-dot.upcoming { background: #94a3b8; }
.it-step-dot.past { background: #0ea5e9; }
.it-step-tier { font-weight: 600; min-width: 180px; }
.it-step-date { color: #64748b; }

/* Upload file list */
.upload-file-list {
  max-height: 160px;
  overflow-y: auto;
  background: var(--bg);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.upload-file-item {
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
}
.upload-file-item:last-child { border-bottom: none; }

/* Responsive */
@media (max-width: 768px) {
  .navbar { flex-direction: column; gap: 0.5rem; }
  .search-box input { width: 100%; }
  .search-box input:focus { width: 100%; }
  .bucket-header { flex-direction: column; align-items: flex-start; }
  .object-meta-grid { grid-template-columns: 1fr; }
  .dashboard-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .dashboard-cards { grid-template-columns: 1fr; }
  .main-content { padding: 1rem; }
}