/* ===== Reset & Base ===== */
*,
*::before,
*::after {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	--color-primary: #185ABD;
	--color-primary-dark: #134a9e;
	--color-primary-light: #e8f0fe;
	--color-text: #1a1a2e;
	--color-text-secondary: #555770;
	--color-bg: #ffffff;
	--color-bg-alt: #f7f8fb;
	--color-border: #e2e4ea;
	--color-success: #0e7a3a;
	--color-success-bg: #e6f4ea;
	--radius: 8px;
	--radius-lg: 12px;
	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
	--max-width: 1120px;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
	color: var(--color-text);
	background: var(--color-bg);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
	line-height: 1.2;
	font-weight: 700;
}

a {
	color: var(--color-primary);
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

/* ===== Nav ===== */
.nav {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--color-border);
}

.nav-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0.75rem 1.5rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.nav-logo {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-weight: 700;
	font-size: 1.125rem;
	color: var(--color-text);
	text-decoration: none;
}

.nav-icon {
	width: 28px;
	height: 28px;
}

.nav-links {
	display: flex;
	gap: 1.5rem;
}

.nav-links a {
	color: var(--color-text-secondary);
	font-size: 0.9rem;
	font-weight: 500;
	text-decoration: none;
}

.nav-links a:hover {
	color: var(--color-primary);
	text-decoration: none;
}

/* ===== Buttons ===== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.75rem 1.5rem;
	border-radius: var(--radius);
	font-weight: 600;
	font-size: 0.95rem;
	text-decoration: none;
	transition: all 0.15s ease;
	cursor: pointer;
	border: none;
}

.btn:hover {
	text-decoration: none;
}

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

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

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

.btn-secondary:hover {
	background: var(--color-bg-alt);
	border-color: #ccc;
}

.btn-small {
	padding: 0.5rem 1rem;
	font-size: 0.85rem;
	background: var(--color-primary);
	color: white;
}

.btn-small:hover {
	background: var(--color-primary-dark);
}

.btn-full {
	width: 100%;
}

/* ===== Hero ===== */
.hero {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 4rem 1.5rem 5rem;
	display: grid;
	grid-template-columns: 1fr 1.3fr;
	gap: 3rem;
	align-items: center;
}

.hero h1 {
	font-size: 2.75rem;
	letter-spacing: -0.02em;
	margin-bottom: 1.25rem;
}

.hero-subtitle {
	font-size: 1.125rem;
	color: var(--color-text-secondary);
	margin-bottom: 2rem;
	max-width: 480px;
}

.hero-actions {
	display: flex;
	gap: 0.75rem;
	margin-bottom: 0.75rem;
}

.hero-note {
	font-size: 0.85rem;
	color: var(--color-text-secondary);
}

/* ===== Hero Visual (Mock Word Window) ===== */
.hero-visual {
	display: flex;
	justify-content: center;
}

.window {
	width: 100%;
	max-width: 560px;
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-lg);
	border: 1px solid var(--color-border);
}

.window-bar {
	background: #f0f0f0;
	padding: 0.5rem 0.75rem;
	display: flex;
	align-items: center;
	gap: 0.375rem;
	border-bottom: 1px solid var(--color-border);
}

.window-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: #ddd;
}

.window-title {
	margin-left: 0.5rem;
	font-size: 0.75rem;
	color: #888;
}

.window-body {
	background: white;
}

.mock-ribbon {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	padding: 0.375rem 0.75rem;
	background: #f5f5f5;
	border-bottom: 1px solid var(--color-border);
	font-size: 0.7rem;
	color: #666;
}

.mock-tab {
	padding: 0.2rem 0;
}

.mock-addin-btn {
	margin-left: auto;
	background: var(--color-primary);
	color: white;
	padding: 0.2rem 0.5rem;
	border-radius: 3px;
	font-size: 0.65rem;
	font-weight: 600;
}

.mock-content {
	display: grid;
	grid-template-columns: 1fr 160px;
	min-height: 260px;
}

.mock-doc {
	padding: 1rem;
	border-right: 1px solid var(--color-border);
}

.mock-heading {
	font-weight: 700;
	font-size: 0.85rem;
	margin-bottom: 0.5rem;
}

.mock-subheading {
	font-weight: 600;
	font-size: 0.75rem;
	margin-top: 0.75rem;
	margin-bottom: 0.375rem;
	color: var(--color-text-secondary);
}

.mock-text {
	font-size: 0.7rem;
	color: var(--color-text-secondary);
	margin-bottom: 0.125rem;
}

.mock-outcome {
	font-size: 0.65rem;
	color: var(--color-text);
	padding: 0.25rem 0;
	border-bottom: 1px solid #f0f0f0;
}

.mock-outcome.inserted {
	background: var(--color-primary-light);
	margin: 0 -0.25rem;
	padding: 0.25rem;
	border-radius: 3px;
	border-bottom-color: transparent;
}

.mock-taskpane {
	padding: 0.5rem;
	background: #fafafa;
	font-size: 0.6rem;
}

.mock-tp-header {
	font-weight: 700;
	font-size: 0.7rem;
	padding-bottom: 0.375rem;
	margin-bottom: 0.375rem;
	border-bottom: 1px solid var(--color-border);
	color: var(--color-primary);
}

.mock-tp-select {
	margin-bottom: 0.375rem;
}

.mock-tp-label {
	display: block;
	font-size: 0.55rem;
	color: #999;
	margin-bottom: 0.125rem;
}

.mock-tp-dropdown {
	background: white;
	border: 1px solid var(--color-border);
	border-radius: 3px;
	padding: 0.2rem 0.375rem;
	font-size: 0.6rem;
}

.mock-tp-items {
	margin-top: 0.5rem;
}

.mock-tp-item {
	padding: 0.25rem 0.375rem;
	border-radius: 3px;
	font-size: 0.55rem;
	color: var(--color-text-secondary);
	margin-bottom: 0.125rem;
	cursor: default;
}

.mock-tp-item.active {
	background: var(--color-primary);
	color: white;
}

/* ===== Sections ===== */
.section-subtitle {
	font-size: 1.1rem;
	color: var(--color-text-secondary);
	max-width: 600px;
	margin: 0.75rem auto 0;
}

/* ===== Features ===== */
.features {
	background: var(--color-bg-alt);
	padding: 5rem 1.5rem;
	text-align: center;
}

.features h2 {
	font-size: 2rem;
}

.features-grid {
	max-width: var(--max-width);
	margin: 3rem auto 0;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1.5rem;
}

.feature-card {
	background: var(--color-bg);
	padding: 1.75rem;
	border-radius: var(--radius-lg);
	text-align: left;
	border: 1px solid var(--color-border);
	transition: box-shadow 0.2s ease;
}

.feature-card:hover {
	box-shadow: var(--shadow-md);
}

.feature-icon {
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--color-primary-light);
	border-radius: var(--radius);
	color: var(--color-primary);
	margin-bottom: 1rem;
}

.feature-icon svg {
	width: 20px;
	height: 20px;
}

.feature-card h3 {
	font-size: 1rem;
	margin-bottom: 0.5rem;
}

.feature-card p {
	font-size: 0.9rem;
	color: var(--color-text-secondary);
}

/* ===== Pricing ===== */
.pricing {
	padding: 5rem 1.5rem;
	text-align: center;
}

.pricing h2 {
	font-size: 2rem;
}

.pricing-card {
	max-width: 420px;
	margin: 2.5rem auto 0;
	background: var(--color-bg);
	border: 2px solid var(--color-primary);
	border-radius: var(--radius-lg);
	padding: 2.5rem 2rem;
	position: relative;
	box-shadow: var(--shadow-md);
}

.pricing-badge {
	position: absolute;
	top: -0.75rem;
	left: 50%;
	transform: translateX(-50%);
	background: var(--color-primary);
	color: white;
	font-size: 0.75rem;
	font-weight: 600;
	padding: 0.25rem 1rem;
	border-radius: 100px;
	white-space: nowrap;
}

.pricing-amount {
	margin: 1rem 0 1.5rem;
	display: flex;
	align-items: baseline;
	justify-content: center;
	gap: 0.125rem;
}

.pricing-currency {
	font-size: 1.5rem;
	font-weight: 600;
	color: var(--color-text-secondary);
}

.pricing-number {
	font-size: 3.5rem;
	font-weight: 800;
	letter-spacing: -0.02em;
}

.pricing-period {
	font-size: 1.1rem;
	color: var(--color-text-secondary);
}

.pricing-features {
	list-style: none;
	text-align: left;
	margin-bottom: 2rem;
}

.pricing-features li {
	padding: 0.5rem 0;
	padding-left: 1.75rem;
	position: relative;
	font-size: 0.9rem;
	color: var(--color-text-secondary);
	border-bottom: 1px solid #f0f0f0;
}

.pricing-features li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 0.7rem;
	width: 18px;
	height: 18px;
	background: var(--color-success-bg);
	border-radius: 50%;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e7a3a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
	background-size: 12px;
	background-position: center;
	background-repeat: no-repeat;
}

.pricing-note {
	font-size: 0.8rem;
	color: var(--color-text-secondary);
	margin-top: 0.75rem;
}

/* ===== Install ===== */
.install {
	background: var(--color-bg-alt);
	padding: 5rem 1.5rem;
	text-align: center;
}

.install h2 {
	font-size: 2rem;
}

.install-tabs {
	display: inline-flex;
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	padding: 0.25rem;
	margin: 2rem auto 0;
}

.install-tab {
	padding: 0.5rem 1.25rem;
	border: none;
	background: transparent;
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--color-text-secondary);
	cursor: pointer;
	border-radius: 6px;
	transition: all 0.15s ease;
}

.install-tab.active {
	background: var(--color-primary);
	color: white;
}

.install-panels {
	max-width: 640px;
	margin: 2rem auto 0;
}

.install-panel {
	display: none;
}

.install-panel.active {
	display: block;
}

.install-steps {
	text-align: left;
}

.step {
	display: flex;
	gap: 1rem;
	padding: 1.25rem 0;
	border-bottom: 1px solid var(--color-border);
}

.step:last-child {
	border-bottom: none;
}

.step-number {
	flex-shrink: 0;
	width: 32px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--color-primary);
	color: white;
	font-weight: 700;
	font-size: 0.85rem;
	border-radius: 50%;
}

.step-content h4 {
	font-size: 0.95rem;
	margin-bottom: 0.375rem;
}

.step-content p {
	font-size: 0.875rem;
	color: var(--color-text-secondary);
	margin-bottom: 0.5rem;
}

.step-content p:last-child {
	margin-bottom: 0;
}

code {
	background: var(--color-primary-light);
	padding: 0.125rem 0.375rem;
	border-radius: 4px;
	font-size: 0.85em;
}

.code-block {
	display: block;
	background: var(--color-text);
	color: #e8f0fe;
	padding: 0.5rem 0.75rem;
	border-radius: var(--radius);
	font-size: 0.8rem;
	margin: 0.5rem 0;
	overflow-x: auto;
	user-select: all;
}

.install-admin {
	max-width: 640px;
	margin: 2.5rem auto 0;
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	padding: 1.5rem 2rem;
	text-align: left;
}

.install-admin h3 {
	font-size: 1rem;
	margin-bottom: 0.5rem;
}

.install-admin p {
	font-size: 0.9rem;
	color: var(--color-text-secondary);
}

/* ===== Footer ===== */
.footer {
	border-top: 1px solid var(--color-border);
	padding: 2.5rem 1.5rem 1.5rem;
}

.footer-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
}

.footer-brand p {
	font-size: 0.85rem;
	color: var(--color-text-secondary);
	margin-top: 0.25rem;
}

.footer-links {
	display: flex;
	gap: 1.5rem;
}

.footer-links a {
	font-size: 0.85rem;
	color: var(--color-text-secondary);
}

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

.footer-bottom {
	max-width: var(--max-width);
	margin: 1.5rem auto 0;
	padding-top: 1rem;
	border-top: 1px solid var(--color-border);
}

.footer-bottom p {
	font-size: 0.8rem;
	color: var(--color-text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
	.hero {
		grid-template-columns: 1fr;
		padding: 2.5rem 1.5rem 3rem;
		text-align: center;
	}

	.hero h1 {
		font-size: 2rem;
	}

	.hero-subtitle {
		margin-left: auto;
		margin-right: auto;
	}

	.hero-actions {
		justify-content: center;
	}

	.hero-visual {
		order: -1;
	}

	.features-grid {
		grid-template-columns: 1fr;
		max-width: 480px;
	}

	.nav-links {
		gap: 1rem;
	}
}

@media (max-width: 600px) {
	.hero h1 {
		font-size: 1.75rem;
	}

	.hero-actions {
		flex-direction: column;
		align-items: stretch;
	}

	.features h2,
	.pricing h2,
	.install h2 {
		font-size: 1.5rem;
	}

	.mock-content {
		grid-template-columns: 1fr 120px;
	}

	.footer-inner {
		flex-direction: column;
		gap: 1rem;
	}

	.nav-links {
		gap: 0.75rem;
		font-size: 0.8rem;
	}
}