:root {
    --bg-primary:    #0a0a0a;
    --bg-panel:      #0f0f0f;
    --bg-panel-dark: #080808;
    --border-dim:    #1a4a4a;
    --accent:        #00ffff;
    --border-bright: var(--accent);
    --text-primary:  #cccccc;
    --text-dim:      #555555;
    --text-accent:   var(--accent);
    --text-warning:  #ff6600;
    --font-mono:     'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-size:     13px;
    --panel-gap:     1px;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size);
    line-height: 1.4;
    height: 100vh;
    overflow: hidden;
}

/* DAW layout — header / (sidebar + main) / transport */
.app-shell {
    display: grid;
    grid-template-rows: 40px 1fr 48px;
    grid-template-columns: 280px 1fr;
    grid-template-areas:
        "header    header"
        "sidebar   main"
        "transport transport";
    height: 100vh;
    gap: var(--panel-gap);
}

.header {
    grid-area: header;
    background: var(--bg-panel-dark);
    border-bottom: 1px solid var(--border-dim);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 16px;
}

.header-title {
    color: var(--text-accent);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-dim);
    overflow: hidden;
    gap: var(--panel-gap);
}

.panel {
    border: 1px solid var(--border-dim);
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    background: var(--bg-panel-dark);
    border-bottom: 1px solid var(--border-dim);
    padding: 6px 12px;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--text-accent);
    text-transform: uppercase;
    flex-shrink: 0;
}

.panel-content {
    flex: 1;
    padding: 8px 12px;
    overflow-y: auto;
    min-height: 0;
}

/* Scrollbar — terminal feel */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-dim); }

.main-area {
    grid-area: main;
    background: var(--bg-panel-dark);
    border: 1px solid var(--border-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 14px;
    letter-spacing: 0.1em;
}

.transport-bar {
    grid-area: transport;
    background: var(--bg-panel-dark);
    border-top: 1px solid var(--border-dim);
    display: flex;
    align-items: center;
    padding: 0 16px;
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 0.08em;
}

/* Status dot */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
    flex-shrink: 0;
}
.status-dot.connected { background: #00ff88; }
.status-dot.error     { background: #ff3333; }

/* Text helpers */
.text-dim    { color: var(--text-dim); }
.text-accent { color: var(--text-accent); }

/* Device list rows */
.device-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--bg-panel-dark);
    gap: 8px;
}
.device-row:last-child {
    border-bottom: none;
}

.device-row-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

/* Form elements */
input, select, button {
    background: var(--bg-panel);
    border: 1px solid var(--border-dim);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size);
    padding: 4px 8px;
    outline: none;
}

button:hover {
    border-color: var(--border-bright);
    color: var(--text-accent);
    cursor: pointer;
}

/* Device form */
.device-form {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px 12px;
    border-top: 1px solid var(--border-dim);
}

.device-form button[type="submit"] {
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Device remove button */
.device-remove {
    background: none;
    border: none;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 16px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    flex-shrink: 0;
}

.device-remove:hover {
    color: #ff3333;
    border: none;
}