:root {
  --bg-primary: #0b0f17;
  --bg-surface: #121824;
  --bg-elevated: #1a2234;
  --bg-hover: #222d44;
  --border-color: #26334d;
  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Modal Overlay (Login) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 15, 23, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 32px;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.login-header {
  text-align: center;
  margin-bottom: 24px;
}

.logo-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.login-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
}

.login-header p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 4px;
}

/* Top Navbar */
.navbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  background: var(--accent-primary);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.brand-title {
  font-weight: 700;
  font-size: 15px;
  display: block;
}

.brand-sub {
  color: var(--text-muted);
  font-size: 11px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-pill strong {
  color: var(--accent-cyan);
}

.patch-pill strong {
  color: var(--accent-green);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
}

/* Main Layout */
.main-layout {
  display: flex;
  min-height: calc(100vh - 65px);
}

.sidebar {
  width: 260px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 12px;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  width: 100%;
}

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

.nav-item.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  font-weight: 600;
  border-left: 3px solid var(--accent-primary);
}

.server-info-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-md);
  font-size: 11px;
}

.server-label {
  color: var(--text-muted);
  margin-bottom: 2px;
}

.server-val {
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 4px;
}

.server-url code {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
}

/* Content Area */
.content-area {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h2 {
  font-size: 22px;
  font-weight: 700;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 4px;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  font-size: 28px;
  background: var(--bg-elevated);
  padding: 12px;
  border-radius: var(--radius-md);
}

.stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 12px;
  margin-top: 2px;
}

/* 2 Column Grid */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 1024px) {
  .grid-2col {
    grid-template-columns: 1fr;
  }
}

/* Panel Card */
.panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.panel-header h3 {
  font-size: 15px;
  font-weight: 600;
}

.panel-sub-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-md);
  margin-bottom: 12px;
}

.panel-sub-box h4 {
  font-size: 13px;
  margin-bottom: 8px;
}

/* Form Styles */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 12px;
}

label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="url"],
input[type="file"],
select,
textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: var(--font-family);
  outline: none;
  transition: border-color 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent-primary);
}

textarea.code-editor {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  white-space: pre;
  tab-size: 2;
}

.form-checkbox label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-main);
  cursor: pointer;
  margin-bottom: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
}

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

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

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

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

.btn-outline {
  background: transparent;
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
}

.btn-outline-sm {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
}

.btn-outline-sm:hover {
  background: var(--bg-elevated);
  color: var(--text-main);
}

.btn-block {
  width: 100%;
}

/* Alerts */
.alert {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 12px;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

/* Logs & Tables */
.log-table-wrap {
  overflow-x: auto;
  max-height: 280px;
}

.log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.log-table th,
.log-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.log-table th {
  color: var(--text-muted);
  font-weight: 600;
}

/* Release and Patch Cards */
.releases-list, .patches-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 520px;
  overflow-y: auto;
}

.item-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 14px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.item-card.is-active {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
}

.item-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.item-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-main);
}

.badge {
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-active {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-mandatory {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.item-changelog {
  color: var(--text-secondary);
  font-size: 12px;
  white-space: pre-line;
}

.item-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

/* JSON Response Box */
.json-response-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #38bdf8;
  max-height: 400px;
  overflow: auto;
  white-space: pre;
}

.quick-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }