html,
body {
	margin: 0;
	padding: 0;
	height: 100%;
	background: #f4f6f8;
}

file-manager {
	display: block;
	height: 100vh;
}

.features {
	padding: 64px 20px;
	background: #fff;
	text-align: center;
}

.features .container,
.fm-features .container,
.fm-faq .container {
	max-width: 1100px;
	margin: 0 auto;
}

.features h2 {
	margin: 0 0 10px;
	font-size: clamp(2rem, 4vw, 2.8rem);
}

.features h3 {
	margin: 0 0 16px;
	font-size: clamp(1.1rem, 2vw, 1.4rem);
	font-weight: 500;
	color: #475569;
}

.features p {
	max-width: 720px;
	margin: 0 auto 28px;
	color: #64748b;
	font-size: 1.05rem;
	line-height: 1.7;
}

.features .btn {
	width: auto;
	min-width: 180px;
}

.fm-features {
	padding: 64px 20px;
	background: #f4f6f8;
}

.fm-features h2 {
	margin: 0 0 32px;
	text-align: center;
}

.fm-cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 18px;
}

.fm-card {
	padding: 26px;
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: 16px;
	box-shadow: 0 4px 14px rgba(15, 23, 42, .05);
}

.fm-card-icon {
	display: inline-flex;
	width: 42px;
	height: 42px;
	margin-bottom: 16px;
	align-items: center;
	justify-content: center;
	color: #2563eb;
	background: #eff6ff;
	border-radius: 12px;
}

.fm-card-icon svg {
	width: 24px;
	height: 24px;
}

.fm-card h3 {
	margin: 0 0 8px;
	font-size: 1.05rem;
}

.fm-card p {
	margin: 0;
	color: #64748b;
	font-size: .95rem;
	line-height: 1.6;
}

.fm-faq {
	background: #fff;
}

.fm-faq-list {
	max-width: 800px;
	margin: 0 auto;
}

.fm-faq-item {
	margin-bottom: 10px;
	padding: 0 18px;
	background: #f8fafc;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
}

.fm-faq-item summary {
	padding: 16px 0;
	font-weight: 600;
	cursor: pointer;
}

.fm-faq-answer {
	padding-bottom: 16px;
	color: #64748b;
	line-height: 1.6;
}


.dbm-faq {
	width: 100%;
	max-width: 900px;
	margin: 45px auto 60px;
	padding: 0 20px;
	box-sizing: border-box;
}

.dbm-faq h2 {
	text-align: center;
	font-size: 30px;
	color: #0f172a;
	margin: 0 0 24px;
}

.dbm-faq-list {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.dbm-faq-item {
	border: 1px solid #dbeafe;
	border-radius: 14px;
	background: #fff;
	overflow: hidden;
	transition: border-color .2s ease, box-shadow .2s ease;
}

.dbm-faq-item[open] {
	border-color: #93c5fd;
	box-shadow: 0 10px 24px rgba(37, 99, 235, .08);
}

.dbm-faq-item summary {
	cursor: pointer;
	list-style: none;
	padding: 18px 22px;
	font-weight: 600;
	color: #0f172a;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
}

.dbm-faq-item summary::-webkit-details-marker {
	display: none;
}

.dbm-faq-item summary::after {
	content: "";
	flex: 0 0 10px;
	width: 10px;
	height: 10px;
	border-right: 2px solid #2563eb;
	border-bottom: 2px solid #2563eb;
	transform: rotate(45deg);
	transition: transform .2s ease;
}

.dbm-faq-item[open] summary::after {
	transform: rotate(-135deg);
}

.dbm-faq-answer {
	padding: 0 22px 18px;
	color: #64748b;
	line-height: 1.6;
}

.dbm-faq-answer p {
	margin: 0;
}