body {
	font-family: 'Noto Sans KR', sans-serif;
	background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
	min-height: 100vh;
}

.container {
	width: 80%;
	max-width: 1200px;
}

@media (max-width: 768px) {
	.container {
		width: 95%;
	}
}

.main-card {
	background: white;
	border-radius: 20px;
	box-shadow: 0 20px 40px rgba(0,0,0,0.1);
	padding: 30px;
	margin-bottom: 30px;
}

.page-title {
	text-align: center;
	color: #333;
	font-weight: 700;
	margin-bottom: 40px;
	font-size: 2.5em;
}

.preset-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	gap: 20px;
	margin-bottom: 40px;
}

.preset-item {
	background: #f8f9ff;
	border: 2px solid #e1e5f7;
	border-radius: 15px;
	padding: 20px;
	text-align: center;
	cursor: pointer;
	transition: all 0.3s ease;
	position: relative;
}

.preset-item:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 25px rgba(0,0,0,0.15);
	border-color: #667eea;
}

.preset-item.active {
	background: #667eea;
	color: white;
	border-color: #667eea;
}

.preset-icon {
	font-size: 3em;
	margin-bottom: 10px;
	display: block;
}

.preset-time {
	font-size: 0.9em;
	color: #666;
	font-weight: 500;
	margin-bottom: 5px;
}

.preset-item.active .preset-time {
	color: #fff;
}

.preset-label {
	font-size: 1.1em;
	font-weight: 600;
}

.timer-section {
	text-align: center;
	margin: 40px 0;
}

.circular-timer {
	width: 300px;
	height: 300px;
	margin: 0 auto 30px;
	position: relative;
}

.circular-timer svg {
	width: 100%;
	height: 100%;
	transform: rotate(-90deg);
}

.circular-timer .background-circle {
	fill: none;
	stroke: #e1e5f7;
	stroke-width: 8;
}

.circular-timer .progress-circle {
	fill: none;
	stroke: #667eea;
	stroke-width: 8;
	stroke-linecap: round;
	transition: stroke-dashoffset 1s linear;
}

.timer-display {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	font-size: 2.5em;
	font-weight: 700;
	color: #333;
}

.manual-timer {
	background: #f8f9ff;
	border-radius: 15px;
	padding: 30px;
	margin-bottom: 30px;
}

.time-inputs {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 10px;
	margin-bottom: 20px;
	flex-wrap: wrap;
}

.time-input {
	width: 80px;
	height: 50px;
	text-align: center;
	font-size: 1.5em;
	font-weight: 600;
	border: 2px solid #e1e5f7;
	border-radius: 10px;
	background: white;
}

.time-input:focus {
	border-color: #667eea;
	outline: none;
}

.control-buttons {
	text-align: center;
	margin-top: 20px;
}

.btn-custom {
	padding: 12px 30px;
	margin: 0 10px;
	border-radius: 25px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 1px;
	transition: all 0.3s ease;
	border: none;
}

.btn-start {
	background: #28a745;
	color: white;
}

.btn-start:hover {
	background: #218838;
	transform: translateY(-2px);
}

.btn-stop {
	background: #dc3545;
	color: white;
}

.btn-stop:hover {
	background: #c82333;
	transform: translateY(-2px);
}

.btn-reset {
	background: #6c757d;
	color: white;
}

.btn-reset:hover {
	background: #5a6268;
	transform: translateY(-2px);
}

.status-indicator {
	margin: 20px 0;
	padding: 15px;
	border-radius: 10px;
	font-weight: 600;
	text-align: center;
}

.status-running {
	background: #d4edda;
	color: #155724;
	border: 1px solid #c3e6cb;
}

.status-paused {
	background: #f8d7da;
	color: #721c24;
	border: 1px solid #f5c6cb;
}

.status-completed {
	background: #fff3cd;
	color: #856404;
	border: 1px solid #ffeaa7;
}

.alarm-animation {
	animation: pulse 0.5s infinite alternate;
}

@keyframes pulse {
	from { transform: scale(1); }
	to { transform: scale(1.05); }
}

.notification {
	position: fixed;
	top: 20px;
	right: 20px;
	background: #28a745;
	color: white;
	padding: 15px 20px;
	border-radius: 10px;
	box-shadow: 0 5px 15px rgba(0,0,0,0.2);
	z-index: 1000;
	transform: translateX(400px);
	transition: transform 0.3s ease;
}

.notification.show {
	transform: translateX(0);
}