/* ========== CSS Variables ========== */
:root {
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-elevated: #222222;
  --bg-hover: #2a2a2a;
  --border: #2d2d2d;
  --border-focus: #555;
  --text: #e8e8e8;
  --text-secondary: #888;
  --text-muted: #555;
  --accent: #4f8ff7;
  --accent-hover: #3d7de5;
  --danger: #e55353;
  --danger-hover: #d33;
  --success: #3ecf8e;
  --warning: #f5a623;
  --sidebar-width: 220px;
  --sidebar-collapsed: 56px;
  --topbar-height: 56px;
  --radius: 8px;
  --radius-sm: 4px;
}

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

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

.auth-screen {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at top, rgba(79, 143, 247, 0.18), transparent 30%),
    linear-gradient(180deg, #111315 0%, #0b0c0d 100%);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: rgba(26, 26, 26, 0.96);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.auth-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.auth-submit {
  width: 100%;
  margin-top: 8px;
}

#app {
  display: flex;
  min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width 0.2s ease;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar-header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.logo-icon {
  font-size: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.logo-text {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.collapse-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 16px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.collapse-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto;
}

.nav-group {
  margin-bottom: 16px;
}

.nav-group-title {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 4px 12px;
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  font-size: 13px;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent);
  color: #fff;
}

.nav-icon {
  font-size: 16px;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.nav-label {
  white-space: nowrap;
  overflow: hidden;
}

/* ========== Main Content ========== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left 0.2s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed);
}

.topbar {
  height: var(--topbar-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-title {
  font-size: 16px;
  font-weight: 600;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.online {
  background: var(--success);
}

.page-content {
  flex: 1;
  padding: 24px;
}

/* ========== Toolbar ========== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ========== Buttons ========== */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

.btn-icon {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.btn-icon.danger:hover {
  background: rgba(229, 83, 83, 0.15);
  color: var(--danger);
}

/* ========== Server Cards ========== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
}

.server-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s;
}

.server-card:hover {
  border-color: var(--border-focus);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.server-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.server-status.active {
  background: var(--success);
}

.card-actions {
  display: flex;
  gap: 2px;
}

.card-body {
  padding: 0 16px 12px;
}

.info-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 4px 0;
  font-size: 13px;
}

.info-label {
  color: var(--text-muted);
  min-width: 60px;
  flex-shrink: 0;
}

.info-value {
  color: var(--text-secondary);
  word-break: break-all;
}

.mono {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

/* ========== Table ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table th,
.data-table td {
  padding: 10px 16px;
  text-align: left;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

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

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.data-table code {
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* ========== Badge ========== */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.badge-success {
  background: rgba(62, 207, 142, 0.15);
  color: var(--success);
}

.badge-muted {
  background: rgba(136, 136, 136, 0.15);
  color: var(--text-muted);
}

/* ========== Permission Grid ========== */
.perm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.perm-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s;
}

.perm-card:has(input:checked) {
  border-color: var(--accent);
  background: rgba(79, 143, 247, 0.05);
}

.perm-label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
}

.perm-label input[type="checkbox"] {
  display: none;
}

.perm-check {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.perm-label input:checked ~ .perm-check {
  background: var(--accent);
  border-color: var(--accent);
}

.perm-label input:checked ~ .perm-check::after {
  content: '✓';
  color: #fff;
  font-size: 12px;
  font-weight: bold;
}

.perm-info {
  flex: 1;
}

.perm-name {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}

.perm-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 15px;
  font-weight: 600;
}

.modal-close {
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

/* ========== Form ========== */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-input,
.form-select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.15s;
}

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

textarea.form-input {
  resize: vertical;
  min-height: 60px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group {
  flex: 1;
}

.form-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 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%23888' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

/* ========== Toast ========== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  z-index: 300;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
  }
}

.toast-success {
  background: rgba(62, 207, 142, 0.15);
  color: var(--success);
  border: 1px solid rgba(62, 207, 142, 0.3);
}

.toast-error {
  background: rgba(229, 83, 83, 0.15);
  color: var(--danger);
  border: 1px solid rgba(229, 83, 83, 0.3);
}

.toast-info {
  background: rgba(79, 143, 247, 0.15);
  color: var(--accent);
  border: 1px solid rgba(79, 143, 247, 0.3);
}

/* ========== Empty State ========== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 48px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.empty-state p {
  font-size: 14px;
  margin-bottom: 16px;
}

/* ========== Pagination ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
  padding: 12px 0;
}

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

/* ========== Extra Badge Colors ========== */
.badge-info {
  background: rgba(79, 143, 247, 0.15);
  color: var(--accent);
}

.badge-danger {
  background: rgba(229, 83, 83, 0.15);
  color: var(--danger);
}

.badge-warning {
  background: rgba(245, 166, 35, 0.15);
  color: var(--warning);
}

.danger-text {
  color: var(--danger) !important;
}

.inline-select {
  width: auto;
  min-width: 160px;
}

/* ========== Stats Grid ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}
.stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.stat-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== Pagination ========== */
.pagination {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}

/* ========== Small select ========== */
.form-select-sm {
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  min-width: 100px;
}

/* ========== Utilities ========== */
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 12px; }