/* ==========================================================================
   SOLV — Official Product Website Stylesheet
   Minimalist Monochrome Dark Aesthetic
   ========================================================================== */

:root {
	--bg-primary: #09090b;
	--bg-secondary: #121216;
	--bg-card: rgba(255, 255, 255, 0.03);
	--bg-card-hover: rgba(255, 255, 255, 0.06);
	--border-subtle: rgba(255, 255, 255, 0.08);
	--border-hover: rgba(255, 255, 255, 0.2);
	--text-primary: #ffffff;
	--text-secondary: #a1a1aa;
	--text-muted: #71717a;
	--accent-white: #ffffff;
	--accent-dark: #09090b;
	--glow-color: rgba(255, 255, 255, 0.08);
	--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
	--radius-sm: 8px;
	--radius-md: 14px;
	--radius-lg: 20px;
	--radius-full: 9999px;
	--transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
	background-color: var(--bg-primary);
	color: var(--text-primary);
	font-family: var(--font-sans);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

body {
	min-height: 100vh;
	line-height: 1.6;
	overflow-x: hidden;
	position: relative;
	background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.05) 0%, transparent 60%),
	            var(--bg-primary);
}

/* Background grid pattern */
.bg-grid {
	position: fixed;
	inset: 0;
	background-image: linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
	                  linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
	background-size: 48px 48px;
	pointer-events: none;
	z-index: 0;
	mask-image: radial-gradient(ellipse at 50% 20%, black 40%, transparent 80%);
	-webkit-mask-image: radial-gradient(ellipse at 50% 20%, black 40%, transparent 80%);
}

.container {
	width: 100%;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 24px;
	position: relative;
	z-index: 1;
}

/* ─── Navigation ─────────────────────────────────────────────────────────── */
.navbar {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: 72px;
	z-index: 100;
	background: rgba(9, 9, 11, 0.7);
	backdrop-filter: blur(20px);
	-webkit-backdrop-filter: blur(20px);
	border-bottom: 1px solid var(--border-subtle);
	transition: var(--transition);
}

.navbar .container {
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.nav-brand {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
	color: var(--text-primary);
}

.nav-brand-icon {
	height: 30px;
	width: auto;
}

.nav-brand-logo {
	height: 22px;
	width: auto;
}

.nav-links {
	display: flex;
	align-items: center;
	gap: 32px;
	list-style: none;
}

.nav-links a {
	color: var(--text-secondary);
	text-decoration: none;
	font-size: 14px;
	font-weight: 500;
	transition: var(--transition);
}

.nav-links a:hover {
	color: var(--text-primary);
}

.nav-actions {
	display: flex;
	align-items: center;
	gap: 12px;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	font-size: 14px;
	font-weight: 600;
	padding: 10px 20px;
	border-radius: var(--radius-sm);
	text-decoration: none;
	cursor: pointer;
	transition: var(--transition);
	border: 1px solid transparent;
	white-space: nowrap;
}

.btn-primary {
	background: var(--accent-white);
	color: var(--accent-dark);
	box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
	background: #f4f4f5;
	transform: translateY(-1px);
	box-shadow: 0 6px 24px rgba(255, 255, 255, 0.25);
}

.btn-secondary {
	background: rgba(255, 255, 255, 0.05);
	color: var(--text-primary);
	border: 1px solid var(--border-subtle);
	backdrop-filter: blur(10px);
}

.btn-secondary:hover {
	background: rgba(255, 255, 255, 0.1);
	border-color: var(--border-hover);
	transform: translateY(-1px);
}

.btn-lg {
	padding: 14px 28px;
	font-size: 15px;
	border-radius: var(--radius-md);
}

/* ─── Hero Section ───────────────────────────────────────────────────────── */
.hero {
	padding: 160px 0 90px;
	text-align: center;
	position: relative;
}

.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 6px 14px;
	border-radius: var(--radius-full);
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid var(--border-subtle);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--text-secondary);
	margin-bottom: 28px;
	backdrop-filter: blur(8px);
}

.hero-badge-pill {
	background: rgba(255, 255, 255, 0.15);
	color: #fff;
	padding: 2px 8px;
	border-radius: var(--radius-full);
	font-size: 11px;
	font-weight: 700;
}

.hero-title {
	font-size: clamp(38px, 6vw, 68px);
	font-weight: 800;
	letter-spacing: -0.03em;
	line-height: 1.1;
	max-width: 900px;
	margin: 0 auto 24px;
	background: linear-gradient(180deg, #ffffff 30%, #a1a1aa 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

.hero-subtitle {
	font-size: clamp(16px, 2vw, 19px);
	color: var(--text-secondary);
	max-width: 660px;
	margin: 0 auto 36px;
	line-height: 1.6;
}

.hero-cta {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 16px;
	margin-bottom: 32px;
}

.cta-group {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 14px;
	flex-wrap: wrap;
}

.platform-note {
	font-size: 13px;
	color: var(--text-muted);
}

.platform-note a {
	color: var(--text-secondary);
	text-decoration: underline;
	text-underline-offset: 3px;
}

.platform-note a:hover {
	color: var(--text-primary);
}

.hero-highlights {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 28px;
	flex-wrap: wrap;
	margin-top: 36px;
	padding-top: 24px;
	border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.highlight-item {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 13px;
	color: var(--text-secondary);
	font-weight: 500;
}

.highlight-icon {
	width: 16px;
	height: 16px;
	color: var(--text-primary);
}

/* ─── Interactive App Mockup ─────────────────────────────────────────────── */
.mockup-wrapper {
	margin-top: 48px;
	perspective: 1200px;
}

.app-window {
	background: #101014;
	border: 1px solid var(--border-hover);
	border-radius: var(--radius-lg);
	box-shadow: 0 25px 80px -15px rgba(0, 0, 0, 0.8),
	            0 0 0 1px rgba(255, 255, 255, 0.06);
	overflow: hidden;
	transition: var(--transition);
	text-align: left;
}

.window-header {
	height: 48px;
	background: #141419;
	border-bottom: 1px solid var(--border-subtle);
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 16px;
}

.window-controls {
	display: flex;
	align-items: center;
	gap: 8px;
}

.control-dot {
	width: 11px;
	height: 11px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.15);
}

.window-title {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 12px;
	font-weight: 600;
	color: var(--text-secondary);
}

.window-actions {
	display: flex;
	align-items: center;
	gap: 8px;
}

.badge-export {
	font-size: 11px;
	background: #fff;
	color: #000;
	font-weight: 700;
	padding: 4px 10px;
	border-radius: var(--radius-sm);
}

/* Live Viewport */
.app-viewport {
	height: 420px;
	position: relative;
	background-image: url('assets/preview-bg.jpg');
	background-size: cover;
	background-position: center;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}

.viewport-overlay {
	position: absolute;
	inset: 0;
	background: radial-gradient(circle at center, transparent 40%, rgba(0, 0, 0, 0.6) 100%);
}

.mockup-inner-screen {
	width: 78%;
	height: 74%;
	background: #18181f;
	border-radius: 10px;
	box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
	border: 1px solid rgba(255, 255, 255, 0.12);
	position: relative;
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.mockup-code-bar {
	height: 32px;
	background: #121217;
	border-bottom: 1px solid rgba(255, 255, 255, 0.05);
	display: flex;
	align-items: center;
	padding: 0 12px;
	gap: 6px;
}

.mockup-code-content {
	flex: 1;
	padding: 16px;
	font-family: var(--font-mono);
	font-size: 12px;
	color: #d4d4d8;
	line-height: 1.7;
}

/* Simulated Cursor */
.mockup-cursor {
	position: absolute;
	width: 18px;
	height: 18px;
	pointer-events: none;
	z-index: 10;
	top: 55%;
	left: 45%;
	animation: cursor-movement 5s infinite ease-in-out;
}

.mockup-cursor svg {
	width: 100%;
	height: 100%;
	filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

.cursor-ripple {
	position: absolute;
	width: 40px;
	height: 40px;
	border: 2px solid rgba(255, 255, 255, 0.8);
	border-radius: 50%;
	top: 55%;
	left: 45%;
	transform: translate(-50%, -50%) scale(0);
	animation: click-ripple 5s infinite ease-out;
}

@keyframes cursor-movement {
	0%, 100% { top: 60%; left: 40%; }
	30% { top: 48%; left: 52%; }
	35% { top: 48%; left: 52%; }
	70% { top: 68%; left: 62%; }
}

@keyframes click-ripple {
	0%, 30% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
	32% { transform: translate(-50%, -50%) scale(0.2); opacity: 1; }
	40% { transform: translate(-50%, -50%) scale(1.6); opacity: 0; }
	100% { opacity: 0; }
}

/* Simulated Timeline */
.app-timeline {
	height: 120px;
	background: #111115;
	border-top: 1px solid var(--border-subtle);
	padding: 12px 16px;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.timeline-ruler {
	display: flex;
	justify-content: space-between;
	font-family: var(--font-mono);
	font-size: 10px;
	color: var(--text-muted);
}

.timeline-track {
	height: 28px;
	background: #18181e;
	border-radius: 6px;
	position: relative;
	overflow: hidden;
}

.timeline-clip {
	position: absolute;
	top: 0;
	bottom: 0;
	background: #ffffff;
	color: #000;
	border-radius: 6px;
	display: flex;
	align-items: center;
	padding: 0 10px;
	font-size: 11px;
	font-weight: 700;
}

.timeline-clip.clip-zoom {
	left: 20%;
	width: 35%;
}

.timeline-track.audio-track {
	background: #16161c;
	height: 22px;
	display: flex;
	align-items: center;
	padding: 0 8px;
	gap: 2px;
}

.wave-bar {
	width: 3px;
	background: rgba(255, 255, 255, 0.3);
	border-radius: 1px;
	height: 40%;
}

/* ─── Features Grid ──────────────────────────────────────────────────────── */
.section {
	padding: 100px 0;
	position: relative;
}

.section-header {
	text-align: center;
	max-width: 680px;
	margin: 0 auto 64px;
}

.section-tag {
	font-size: 12px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: var(--text-muted);
	margin-bottom: 12px;
}

.section-title {
	font-size: clamp(30px, 4vw, 44px);
	font-weight: 800;
	letter-spacing: -0.02em;
	margin-bottom: 16px;
	line-height: 1.2;
}

.section-desc {
	font-size: 16px;
	color: var(--text-secondary);
}

.features-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.feature-card {
	background: var(--bg-card);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-md);
	padding: 32px 28px;
	transition: var(--transition);
	position: relative;
	overflow: hidden;
}

.feature-card:hover {
	background: var(--bg-card-hover);
	border-color: var(--border-hover);
	transform: translateY(-3px);
}

.feature-icon-wrapper {
	width: 44px;
	height: 44px;
	border-radius: var(--radius-sm);
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid var(--border-subtle);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 20px;
	color: #fff;
}

.feature-title {
	font-size: 18px;
	font-weight: 700;
	margin-bottom: 10px;
	color: #fff;
}

.feature-text {
	font-size: 14px;
	color: var(--text-secondary);
	line-height: 1.6;
}

/* ─── Download Cards ─────────────────────────────────────────────────────── */
.download-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 28px;
	max-width: 900px;
	margin: 0 auto;
}

.download-card {
	background: var(--bg-secondary);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-lg);
	padding: 40px 32px;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	transition: var(--transition);
	position: relative;
}

.download-card.highlight {
	border-color: rgba(255, 255, 255, 0.3);
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%),
	            var(--bg-secondary);
}

.card-os-badge {
	position: absolute;
	top: 16px;
	right: 16px;
	background: rgba(255, 255, 255, 0.1);
	color: #fff;
	font-size: 11px;
	font-weight: 700;
	padding: 4px 10px;
	border-radius: var(--radius-full);
}

.os-icon {
	width: 52px;
	height: 52px;
	margin-bottom: 20px;
	color: #fff;
}

.download-card h3 {
	font-size: 22px;
	font-weight: 700;
	margin-bottom: 8px;
}

.download-card p {
	font-size: 14px;
	color: var(--text-secondary);
	margin-bottom: 24px;
}

.download-meta {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--text-muted);
	margin-top: 16px;
}

/* ─── FAQ Section ────────────────────────────────────────────────────────── */
.faq-list {
	max-width: 760px;
	margin: 0 auto;
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.faq-item {
	background: var(--bg-card);
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-sm);
	overflow: hidden;
	transition: var(--transition);
}

.faq-question {
	padding: 20px 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	cursor: pointer;
	font-weight: 600;
	font-size: 15px;
	user-select: none;
}

.faq-chevron {
	transition: transform 0.2s ease;
	width: 16px;
	height: 16px;
	color: var(--text-muted);
}

.faq-item.active .faq-chevron {
	transform: rotate(180deg);
}

.faq-answer {
	padding: 0 24px 20px;
	color: var(--text-secondary);
	font-size: 14px;
	line-height: 1.6;
	display: none;
}

.faq-item.active .faq-answer {
	display: block;
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.footer {
	border-top: 1px solid var(--border-subtle);
	padding: 60px 0 40px;
	background: #08080a;
}

.footer-top {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-bottom: 36px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.05);
	margin-bottom: 32px;
	flex-wrap: wrap;
	gap: 20px;
}

.footer-brand {
	display: flex;
	align-items: center;
	gap: 10px;
}

.footer-links {
	display: flex;
	gap: 24px;
	list-style: none;
}

.footer-links a {
	color: var(--text-secondary);
	text-decoration: none;
	font-size: 13px;
	transition: var(--transition);
}

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

.footer-bottom {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: 12px;
	color: var(--text-muted);
	flex-wrap: wrap;
	gap: 12px;
}

/* ─── Responsive Media Queries ───────────────────────────────────────────── */
@media (max-width: 900px) {
	.features-grid {
		grid-template-columns: repeat(2, 1fr);
	}
	.download-grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 680px) {
	.nav-links {
		display: none;
	}
	.features-grid {
		grid-template-columns: 1fr;
	}
	.hero {
		padding: 120px 0 60px;
	}
	.app-viewport {
		height: 280px;
	}
	.mockup-code-content {
		font-size: 10px;
	}
}