:root {
    --primary: #00f2ff;
    --danger: #ff4757;
    --warning: #ffa502;
    --bg: #121212;
    --card: #1e1e1e;
}

body {
    background-color: var(--bg);
    color: white;
    font-family: 'Inter', sans-serif;
    display: flex;
    justify-content: center;
    padding-top: 50px;
    margin: 0;
}

.todo-app {
    background: var(--card);
    width: 450px;
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

header p { color: #666; font-size: 0.9rem; margin-bottom: 25px; }

/* Control Panel */
.scheduler-controls { display: flex; flex-direction: column; gap: 12px; margin-bottom: 25px; }

#taskInput, input, select {
    background: #252525;
    border: 1px solid #333;
    color: white;
    outline: none;
    border-radius: 8px;
}

#taskInput { padding: 15px; font-size: 1rem; }
.logic-row { display: flex; gap: 8px; align-items: flex-end; }
.input-group { display: flex; flex-direction: column; gap: 5px; flex: 1; }
.input-group label { font-size: 8px; text-transform: uppercase; color: var(--primary); font-weight: bold; }
.input-group input, .input-group select { padding: 8px; font-size: 0.75rem; }

.add-btn {
    background: var(--primary);
    border: none;
    height: 35px;
    padding: 0 15px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
}

/* Task Cards */
ul { list-style: none; padding: 0; }

.task-item {
    background: #252525;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: 0.2s ease;
    border-left: 5px solid transparent;
}

.task-item:hover { transform: translateX(5px); background: #2d2d2d; }

/* Priority Colors */
.priority-high { border-left-color: var(--danger); }
.priority-medium { border-left-color: var(--warning); }
.priority-low { border-left-color: #444; }

.priority-tag {
    font-size: 9px;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 4px;
    margin-right: 10px;
    font-weight: bold;
}

.tag-high { background: rgba(255, 71, 87, 0.2); color: var(--danger); }
.tag-medium { background: rgba(255, 165, 2, 0.2); color: var(--warning); }
.tag-low { background: rgba(255, 255, 255, 0.1); color: #888; }

.task-item.completed { opacity: 0.3; text-decoration: line-through; filter: grayscale(1); }
.task-item.overdue { animation: pulse 2s infinite; }

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 71, 87, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(255, 71, 87, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 71, 87, 0); }
}

.deadline-badge { font-family: 'Courier New', monospace; font-size: 11px; color: var(--primary); margin-top: 6px; display: inline-block; }
.delete-btn { color: #444; font-size: 18px; transition: 0.2s; padding: 5px; }
.delete-btn:hover { color: var(--danger); transform: scale(1.2); }

.footer { display: flex; justify-content: space-between; margin-top: 20px; font-size: 0.8rem; color: #555; }
.clear-btn { background: none; border: 1px solid #333; color: #555; padding: 4px 10px; border-radius: 6px; cursor: pointer; }
.clear-btn:hover { color: white; border-color: white; }