:root {
	--bg: #f4f8ff;

	--primary: #135bec;
	--primary-dark: #0f4bbd;
	--text-main: #1c1c1e;
	--text-secondary: #6b7280;
	--bg-light: #f9fafb;
	--white: #ffffff;
	--border: #e5e7eb;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Lexend', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
	color: var(--text-main);
	/* background-color: var(--white); */
	line-height: 1.6;
	
	background:
	radial-gradient(circle at 90% -10%, rgba(19, 91, 236, 0.20), transparent 35%),
	radial-gradient(circle at 0% 20%, rgba(14, 165, 164, 0.15), transparent 30%),
	var(--bg);
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Header */
header {
	padding: 20px 0;
	position: sticky;
	top: 0;
	background: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(10px);
	z-index: 1000;
	border-bottom: 1px solid var(--border);
}

.nav-wrapper {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--text-main);
	display: flex;
	align-items: center;
	gap: 10px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary);
}

.btn {
	display: inline-block;
	padding: 12px 24px;
	border-radius: 12px;
	font-weight: 600;
	text-decoration: none;
	transition: all 0.3s ease;
	cursor: pointer;
	border: none;
	font-size: 1rem;
}

.btn-primary {
	background-color: var(--primary);
	color: var(--white) !important;
}

.btn-primary:hover {
	background-color: var(--primary-dark);
	transform: translateY(-1px);
}

.btn-outline {
	border: 2px solid var(--primary);
	color: var(--primary);
	background: transparent;
}

.btn-outline:hover {
	background-color: var(--primary);
	color: var(--white);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--text-main) !important;
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: var(--border);
}

/* Hero */
.hero {
	padding: 40px 0 30px;
	text-align: center;
	/* background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%); */
}

.hero h1 {
	font-size: 3.5rem;
	font-weight: 800;
	line-height: 1.1;
	margin-bottom: 25px;
	background: -webkit-linear-gradient(45deg, var(--text-main), var(--primary));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.product-description p {
	font-size: 1.25rem;
	color: var(--text-secondary);
	line-height: 1.5;
}

/* Features */
.features {
	padding: 40px 0;
	/* background-color: var(--white); */
}

.bg-light {
    background-color: var(--bg-light);
}

.section-header {
	text-align: center;
	margin-bottom: 60px;
}

.section-header h2 {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.section-header p {
	color: var(--text-secondary);
	font-size: 1.1rem;
}

.feature-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
	gap: 30px;
}

.feature-card {
	padding: 40px;
	border-radius: 24px;
	background: var(--bg-light);
	transition: all 0.3s ease;
	text-align: left;
    border: 1px solid transparent;
}

.feature-card:hover {
	transform: translateY(-5px);
    border-color: var(--border);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.feature-icon {
	background: var(--white);
	width: 56px;
	height: 56px;
	border-radius: 16px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 24px;
	box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	color: var(--primary);
}

.feature-card h3 {
	font-size: 1.4rem;
	font-weight: 700;
	margin-bottom: 12px;
    color: var(--text-main);
}

.feature-card p {
	color: var(--text-secondary);
    font-size: 0.95rem;
}

/* FAQ */
.faq {
	padding: 40px 0;
}

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

.accordion-item {
	border: none;
    border-bottom: 1px solid var(--border);
    background: transparent;
}

.accordion-header {
	width: 100%;
	padding: 24px 0;
	text-align: left;
	background: none;
	border: none;
	font-size: 1.15rem;
	font-weight: 600;
	display: flex;
	justify-content: space-between;
	align-items: center;
	cursor: pointer;
	transition: color 0.2s;
    color: var(--text-main);
}

.accordion-header:hover {
	color: var(--primary);
}

.accordion-icon {
	transition: transform 0.3s;
    color: var(--text-secondary);
}

.accordion-content {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.3s ease-out;
}

.accordion-content p {
	padding-bottom: 24px;
	color: var(--text-secondary);
    font-size: 1rem;
}

.accordion-item.active .accordion-icon {
	transform: rotate(180deg);
    color: var(--primary);
}

.accordion-item.active .accordion-content {
	max-height: 300px;
}

/* Footer */
footer {
	background-color: #111827;
	color: #9ca3af;
	padding: 40px 0 20px;
}

.footer-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 40px;
	margin-bottom: 60px;
}

.footer-col h4 {
	color: var(--white);
	margin-bottom: 24px;
	font-size: 1.1rem;
    font-weight: 600;
}

.footer-links {
	list-style: none;
}

.footer-links li {
	margin-bottom: 12px;
}

.footer-links a {
	color: #9ca3af;
	text-decoration: none;
	transition: color 0.2s;
    font-size: 0.95rem;
}

.footer-links a:hover {
	color: var(--white);
}

.social-icons {
	display: flex;
	gap: 20px;
}

.social-icons a {
	color: #9ca3af;
	font-size: 20px;
	text-decoration: none;
    transition: color 0.2s;
}

.social-icons a:hover {
    color: var(--white);
}

.copyright {
	text-align: center;
	padding-top: 40px;
	border-top: 1px solid #1f2937;
	font-size: 0.85rem;
}

/* Animations */
.logo-icon {
  fill: var(--primary);
  flex-shrink: 0;
}

.notch {
	transform-origin: 8px 8px;
	animation: rotate90 4s linear infinite;
}

@keyframes rotate90 {
	from { transform: rotate(0deg); }
	to   { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
	.hero h1 {
		font-size: 2.75rem;
	}
	
	.feature-grid {
        grid-template-columns: 1fr;
    }

	.nav-wrapper .btn-outline {
		display: none;
	}
}

/* Gallery */

.open-gallery-btn {
	padding: 14px 22px;
	border: none;
	border-radius: 14px;
	background: #2b6fff;
	color: white;
	font-size: 16px;
	cursor: pointer;
	transition:
		transform 0.2s ease,
		opacity 0.2s ease;
}

.open-gallery-btn:hover {
	transform: translateY(-2px);
	opacity: 0.9;
}

/* LIGHTBOX */
.lightbox {
	position: fixed;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(0,0,0,0.86);
	backdrop-filter: blur(8px);
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.25s ease;
	z-index: 9999;
}

.lightbox.open {
	opacity: 1;
	pointer-events: auto;
}

.lightbox img {
	max-width: 92vw;
	max-height: 92vh;
	border-radius: 18px;
	transform: scale(0.96);
	transition: transform 0.25s ease;
	box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox.open img {
	transform: scale(1);
}

.nav-btn,
.close-btn {
	position: absolute;
	width: 50px;
	height: 50px;
	border: none;
	border-radius: 50%;
	background: rgba(255,255,255,0.15);
	color: white;
	font-size: 24px;
	cursor: pointer;
	backdrop-filter: blur(6px);
}

.close-btn {
	top: 24px;
	right: 24px;
}

.prev-btn {
	left: 24px;
	top: 50%;
	transform: translateY(-50%);
}

.next-btn {
	right: 24px;
	top: 50%;
	transform: translateY(-50%);
}

.counter {
	position: absolute;
	bottom: 24px;
	background: rgba(255,255,255,0.12);
	padding: 10px 16px;
	border-radius: 999px;
	font-size: 14px;
	backdrop-filter: blur(6px);
}