* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;
    background: #f5f5f5;
    padding: 20px;
}
.container {
    max-width: 900px;
    margin: 0 auto;
}
h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 24px;
}
.form-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}
.form-group {
    margin-bottom: 12px;
}
label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    color: #555;
    font-size: 14px;
}
input[type="text"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}
textarea {
    resize: vertical;
    min-height: 60px;
}
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}
.btn-primary {
    background: #007bff;
    color: white;
}
.btn-primary:hover {
    background: #0056b3;
}
.btn-success {
    background: #28a745;
    color: white;
    padding: 6px 12px;
    font-size: 12px;
}
.btn-warning {
    background: #ffc107;
    color: #333;
    padding: 6px 12px;
    font-size: 12px;
}
.btn-secondary {
    background: #6c757d;
    color: white;
    padding: 6px 12px;
    font-size: 12px;
}
.btn-success:hover {
    background: #218838;
}
.btn-warning:hover {
    background: #e0a800;
}
.btn-secondary:hover {
    background: #5a6268;
}
.task-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.task-card {
    background: white;
    padding: 16px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #007bff;
}
.task-card.completed {
    opacity: 0.7;
    border-left-color: #28a745;
}
.task-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 8px;
}
.task-title {
    font-weight: 600;
    font-size: 16px;
    color: #333;
    flex: 1;
}
.task-timer {
    font-family: monospace;
    font-size: 18px;
    font-weight: bold;
    color: #007bff;
    margin-left: 12px;
}
.task-timer.active {
    color: #28a745;
}
.task-description {
    color: #666;
    font-size: 14px;
    margin-bottom: 12px;
    white-space: pre-wrap;
}
.task-meta {
    display: flex;
    gap: 8px;
    font-size: 12px;
    color: #999;
    margin-bottom: 12px;
}
.task-status {
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
    font-size: 11px;
    text-transform: uppercase;
}
.status-not-started {
    background: #e9ecef;
    color: #495057;
}
.status-active {
    background: #d4edda;
    color: #155724;
}
.status-paused {
    background: #fff3cd;
    color: #856404;
}
.status-completed {
    background: #d1ecf1;
    color: #0c5460;
}
.task-actions {
    display: flex;
    gap: 8px;
}
.section-title {
    font-size: 18px;
    font-weight: 600;
    color: #666;
    margin: 24px 0 12px 0;
}