:root {
    --bg-dark: #0f111a;
    --bg-panel: #1a1d27;
    --bg-card: #232736;
    --border-color: #2f354a;

    --text-main: #e2e8f0;
    --text-muted: #94a3b8;

    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Utilities */
.text-primary {
    color: var(--primary);
}

.text-success {
    color: var(--success);
}

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

.text-warning {
    color: var(--warning);
}

.w-full {
    width: 100%;
}

/* Navbar */
.navbar {
    height: 60px;
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand h1 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.live-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-card);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--success);
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

/* Layout */
.app-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Left Panel: Editor */
.editor-panel {
    width: 45%;
    min-width: 400px;
    border-right: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    display: flex;
    flex-direction: column;
}

.panel-header {
    height: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.strategy-dropdown {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
}

.editor-container {
    flex: 1;
    position: relative;
}

.code-editor {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-color: #1e1e1e;
    /* VSCode dark */
    color: #d4d4d4;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.5;
    padding: 1rem;
    border: none;
    resize: none;
    outline: none;
}

.actions {
    padding: 1rem;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #2c3245;
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--bg-panel);
}

.btn-text {
    background: transparent;
    color: var(--text-muted);
    border: none;
    font-size: 0.8rem;
    cursor: pointer;
}

.btn-text:hover {
    color: var(--text-main);
}


/* Right Panel: Dashboard */
.dashboard-panel {
    flex: 1;
    background-color: var(--bg-dark);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Config Grid */
.server-config .config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 1rem;
    padding: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-group input {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
}

/* Chart Area */
.chart-card {
    flex: 1;
    min-height: 250px;
}

.metrics-bar {
    display: flex;
    padding: 1rem 1.25rem;
    gap: 2rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.1);
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.chart-container {
    padding: 1rem;
    flex: 1;
    position: relative;
    height: 200px;
}

/* Logs Area */
.logs-card {
    height: 250px;
}

.logs-container {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    background: var(--bg-dark);
}

.log-entry {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    word-break: break-all;
}

.log-entry.system {
    color: var(--text-muted);
    font-style: italic;
}

.log-entry.success {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.log-entry.error {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}