.container {
	max-width: 1000px;
	margin: 0 auto;
}

header {
	text-align: center;
	padding: 30px 0;
	margin-bottom: 30px;
}

header h1 {
	font-size: 2.8rem;
	background: linear-gradient(90deg, #4b6cb7 0%, #182848 100%);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	margin-bottom: 15px;
}

header p {
	font-size: 1.2rem;
	color: #555;
	max-width: 700px;
	margin: 0 auto;
	line-height: 1.6;
}

.upload-section {
	background: white;
	border-radius:0px;
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
	padding: 30px;
	margin-bottom: 18px;
	text-align: center;
}

.file-drop-area {
	border: 3px dashed #d1d5db;
	border-radius: 12px;
	padding: 40px 20px;
	margin: 20px 0;
	background-color: #f9fafb;
	transition: all 0.3s ease;
	position: relative;
}

.file-drop-area.active {
	border-color: #4b6cb7;
	background-color: #eef2ff;
}

.file-drop-area i {
	font-size: 3rem;
	color: #9ca3af;
	margin-bottom: 15px;
	display: block;
}

.file-drop-area h3 {
	color: #4b5563;
	margin-bottom: 15px;
}

.file-drop-area p {
	color: #6b7280;
	margin-bottom: 20px;
}

.file-input {
	display: none;
}

.browse-btn {
	background: #4b6cb7;
	color: white;
	padding: 12px 24px;
	border: none;
	border-radius: 8px;
	cursor: pointer;
	font-weight: 600;
	font-size: 1rem;
	transition: all 0.3s ease;
}

.browse-btn:hover {
	background: #3a5795;
	transform: translateY(-2px);
}

.file-info {
	margin-top: 20px;
	padding: 15px;
	background: #f3f4f6;
	border-radius: 8px;
	display: none;
}

.file-name {
	font-weight: 600;
	margin-bottom: 10px;
	color: #1f2937;
}

.file-size {
	color: #6b7280;
	font-size: 0.9rem;
}

.process-btn {
	background: #10b981;
	color: white;
	padding: 12px 24px;
	border: none;
	border-radius: 8px;
	cursor: pointer;
	font-weight: 600;
	font-size: 1rem;
	transition: all 0.3s ease;
	margin-top: 20px;
	display: none;
}

.process-btn:hover {
	background: #059669;
	transform: translateY(-2px);
}

.result-section {
	background: white;
	border-radius: 12px;
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
	padding: 30px;
	margin-bottom: 30px;
	display: none;
}

.result-section h2 {
	color: #182848;
	margin-bottom: 20px;
	padding-bottom: 15px;
	border-bottom: 2px solid #4b6cb7;
}

.content-box {
	background: #f9fafb;
	border-radius: 8px;
	padding: 20px;
	max-height: 400px;
	overflow-y: auto;
	line-height: 1.7;
	border: 1px solid #e5e7eb;
}

.content-box p {
	margin-bottom: 15px;
}

.content-box strong {
	color: #1f2937;
}

.instructions {
	background: white;
	border-radius: 12px;
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
	padding: 30px;
	margin-top: 30px;
}

.instructions h2 {
	color: #182848;
	margin-bottom: 20px;
}

.instructions ul {
	padding-left: 25px;
}

.instructions li {
	margin-bottom: 15px;
	line-height: 1.7;
}

.instructions code {
	background: #f1f5f9;
	padding: 2px 6px;
	border-radius: 4px;
	font-family: monospace;
}

footer {
	text-align: center;
	padding: 30px 0;
	color: #666;
	font-size: 1rem;
	margin-top: 40px;
}

.loading {
	display: none;
	text-align: center;
	padding: 20px;
}

.spinner {
	border: 4px solid rgba(0, 0, 0, 0.1);
	border-radius: 50%;
	border-top: 4px solid #4b6cb7;
	width: 40px;
	height: 40px;
	animation: spin 1s linear infinite;
	margin: 0 auto 20px;
}

@keyframes spin {
	0% { transform: rotate(0deg); }
	100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
	header h1 {
		font-size: 2.2rem;
	}
	
	.upload-section, .result-section, .instructions {
		padding: 20px;
	}
}