:root {
    --bg: #0f172a; /* Deep Slate */
    --card-bg: #1e293b;
    --text: #f8fafc;
    --accent: #38bdf8; /* Sky Blue */
    --border: #334155;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font);
    margin: 0;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

.controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 1rem;
}

input, select, button {
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text);
}

button {
    background: var(--accent);
    color: var(--bg);
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.2s;
}

button:hover { opacity: 0.8; }

.dashboard {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.swimlane {
    border-bottom: 1px solid var(--border);
    padding-bottom: 2rem;
}

.kanban-board {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 1rem 0;
}

.column {
    flex: 1;
    min-width: 250px;
    background: rgba(255, 255, 255, 0.02);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.task-list {
    min-height: 200px;
}

.task-card {
    background: var(--card-bg);
    padding: 1rem;
    margin: 0.5rem 0;
    border-radius: 4px;
    border-left: 4px solid var(--accent);
    cursor: grab;
    transition: transform 0.1s;
}

.task-card:active { cursor: grabbing; }

.task-card .note {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-top: 5px;
}