/* Bookmark AI — public site styles (Warm Library identity). */

:root {
	--paper: #faf6ee;
	--surface: #fffdf8;
	--panel: #f3ede1;
	--border: #e6ddca;
	--border-strong: #d8ccb2;
	--ink: #3a342b;
	--ink-muted: #6b6253;
	--ink-faint: #7a705d;
	--accent: #7a5d3a;
	--green: #456d48;
	--amber: #9a7b2e;
	--red: #9a4b3f;
	--radius: 10px;
	--radius-small: 6px;
	--font-body:
		system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
		"Hiragino Sans", "Noto Sans JP", sans-serif;
	--font-heading:
		Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.65;
}

h1,
h2,
h3 {
	font-family: var(--font-heading);
	font-weight: 600;
	line-height: 1.25;
	color: var(--ink);
}

a {
	color: var(--accent);
	text-decoration: underline;
	text-underline-offset: 2px;
}

a:hover {
	color: var(--ink);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
	border-radius: 3px;
}

code {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: 0.9em;
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 4px;
	padding: 0.05em 0.35em;
	white-space: nowrap;
}

.wrap {
	max-width: 960px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Header */

.site-header {
	border-bottom: 1px solid var(--border);
	background: var(--surface);
}

.site-header .wrap {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding-top: 14px;
	padding-bottom: 14px;
	flex-wrap: wrap;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	font-family: var(--font-heading);
	font-size: 1.15rem;
	font-weight: 700;
	color: var(--ink);
	text-decoration: none;
}

.brand-mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	border-radius: 7px;
	background: var(--accent);
	color: var(--surface);
	font-family: var(--font-heading);
	font-size: 0.95rem;
	line-height: 1;
}

.site-nav {
	display: flex;
	gap: 18px;
	flex-wrap: wrap;
}

.site-nav a {
	color: var(--ink-muted);
	text-decoration: none;
	font-size: 0.95rem;
}

.site-nav a:hover {
	color: var(--ink);
	text-decoration: underline;
}

.site-nav .nav-install {
	color: var(--accent);
	font-weight: 700;
}

/* Sections */

section {
	padding: 56px 0;
}

section + section {
	border-top: 1px solid var(--border);
}

.section-title {
	font-size: 1.7rem;
	margin: 0 0 8px;
}

.section-lede {
	color: var(--ink-muted);
	margin: 0 0 32px;
	max-width: 620px;
}

/* Hero */

.hero {
	padding: 72px 0 64px;
}

.hero .wrap {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
	gap: 48px;
	align-items: center;
}

.hero h1 {
	font-size: clamp(1.9rem, 4vw, 2.6rem);
	margin: 0 0 16px;
}

.hero-lede {
	color: var(--ink-muted);
	font-size: 1.08rem;
	margin: 0 0 28px;
	max-width: 480px;
}

.cta-row {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
	align-items: center;
}

.button {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 20px;
	border-radius: var(--radius-small);
	font-size: 0.98rem;
	font-weight: 600;
	text-decoration: none;
	border: 1px solid transparent;
}

.button-primary {
	background: var(--accent);
	border-color: var(--accent);
	color: var(--surface);
}

.button-primary:hover {
	background: var(--ink);
	border-color: var(--ink);
	color: var(--surface);
}

.button-secondary {
	background: var(--panel);
	border-color: var(--border-strong);
	color: var(--ink);
}

.button-secondary:hover {
	background: var(--surface);
	border-color: var(--accent);
	color: var(--accent);
}

.hero-note {
	margin: 14px 0 0;
	font-size: 0.88rem;
	color: var(--ink-faint);
}

/* Install callout */

.install-section {
	padding-top: 0;
}

.install-panel {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 18px 28px;
	align-items: center;
	background: var(--surface);
	border: 1px solid var(--border-strong);
	border-radius: var(--radius);
	box-shadow: 0 8px 22px rgba(58, 52, 43, 0.08);
	padding: 22px 24px;
}

.install-panel .eyebrow {
	grid-column: 1 / -1;
	margin: 0;
	color: var(--green);
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.install-panel h2 {
	margin-bottom: 6px;
}

.install-panel p:not(.eyebrow) {
	margin: 0;
	color: var(--ink-muted);
	max-width: 620px;
}

.install-actions {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	justify-content: flex-end;
}

/* Mock popup (decorative) */

.mock-popup {
	background: var(--surface);
	border: 1px solid var(--border-strong);
	border-radius: var(--radius);
	box-shadow: 0 10px 28px rgba(58, 52, 43, 0.1);
	padding: 16px;
	font-size: 0.82rem;
	max-width: 400px;
	width: 100%;
	justify-self: end;
}

.mock-titlebar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-bottom: 12px;
}

.mock-brand {
	display: flex;
	align-items: center;
	gap: 8px;
	font-family: var(--font-heading);
	font-weight: 700;
	color: var(--ink);
}

.mock-dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: var(--accent);
}

.mock-pill {
	font-size: 0.72rem;
	padding: 2px 9px;
	border-radius: 999px;
	border: 1px solid var(--border);
	background: var(--panel);
	color: var(--green);
	white-space: nowrap;
}

.mock-tab {
	display: flex;
	gap: 10px;
	align-items: center;
	background: var(--paper);
	border: 1px solid var(--border);
	border-radius: var(--radius-small);
	padding: 10px 12px;
	margin-bottom: 12px;
}

.mock-favicon {
	width: 22px;
	height: 22px;
	border-radius: 5px;
	background: var(--panel);
	border: 1px solid var(--border-strong);
	flex: none;
}

.mock-tab-title {
	font-weight: 600;
	color: var(--ink);
}

.mock-tab-url {
	color: var(--ink-faint);
	font-size: 0.74rem;
	overflow-wrap: anywhere;
}

.mock-save {
	background: var(--accent);
	color: var(--surface);
	text-align: center;
	font-weight: 600;
	border-radius: var(--radius-small);
	padding: 9px 12px;
	margin-bottom: 12px;
}

.mock-trail {
	list-style: none;
	margin: 0 0 12px;
	padding: 0;
	color: var(--ink-muted);
	display: grid;
	gap: 5px;
}

.mock-trail .done::before {
	content: "✓ ";
	color: var(--green);
}

.mock-trail .active {
	color: var(--amber);
}

.mock-trail .active::before {
	content: "… ";
}

.mock-result {
	background: var(--paper);
	border: 1px solid var(--border);
	border-radius: var(--radius-small);
	padding: 10px 12px;
}

.mock-desc {
	color: var(--ink);
	margin: 0 0 8px;
}

.mock-tags {
	display: flex;
	gap: 6px;
	flex-wrap: wrap;
}

.mock-tag {
	font-size: 0.72rem;
	padding: 2px 9px;
	border-radius: 999px;
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--ink-muted);
}

.mock-tag-genre {
	color: var(--accent);
	font-weight: 600;
}

/* Feature cards */

.feature-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 18px;
}

.feature-card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 20px 22px;
}

.feature-card h3 {
	margin: 0 0 8px;
	font-size: 1.08rem;
}

.feature-card p {
	margin: 0;
	color: var(--ink-muted);
	font-size: 0.94rem;
}

/* Data flow */

.flow {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 14px;
	counter-reset: flow;
	list-style: none;
	margin: 0 0 24px;
	padding: 0;
}

.flow li {
	position: relative;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 18px 18px 16px;
	counter-increment: flow;
}

.flow li::before {
	content: counter(flow);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	border-radius: 50%;
	background: var(--panel);
	border: 1px solid var(--border-strong);
	color: var(--accent);
	font-weight: 700;
	font-size: 0.8rem;
	margin-bottom: 10px;
}

.flow h3 {
	margin: 0 0 6px;
	font-size: 1rem;
	font-family: var(--font-body);
	font-weight: 700;
}

.flow p {
	margin: 0;
	color: var(--ink-muted);
	font-size: 0.88rem;
}

.flow-notes {
	display: grid;
	gap: 10px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.flow-notes li {
	background: var(--panel);
	border: 1px solid var(--border);
	border-left: 3px solid var(--green);
	border-radius: var(--radius-small);
	padding: 10px 14px;
	color: var(--ink);
	font-size: 0.92rem;
}

/* Privacy highlights */

.privacy-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 18px;
	margin-bottom: 24px;
}

.privacy-card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 18px 20px;
}

.privacy-card h3 {
	margin: 0 0 6px;
	font-size: 1rem;
	font-family: var(--font-body);
	font-weight: 700;
}

.privacy-card p {
	margin: 0;
	color: var(--ink-muted);
	font-size: 0.9rem;
}

/* FAQ */

.faq details {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-small);
	margin-bottom: 10px;
	padding: 0 18px;
}

.faq summary {
	cursor: pointer;
	font-weight: 600;
	padding: 14px 0;
	color: var(--ink);
	list-style-position: outside;
}

.faq details[open] summary {
	border-bottom: 1px solid var(--border);
}

.faq details p {
	color: var(--ink-muted);
	margin: 12px 0 16px;
	font-size: 0.95rem;
}

/* Footer */

.site-footer {
	border-top: 1px solid var(--border);
	background: var(--surface);
	padding: 32px 0;
	font-size: 0.92rem;
	color: var(--ink-muted);
}

.footer-links {
	display: flex;
	gap: 20px;
	flex-wrap: wrap;
	margin-bottom: 12px;
	padding: 0;
	list-style: none;
}

.site-footer p {
	margin: 0;
	color: var(--ink-faint);
	font-size: 0.85rem;
}

/* Policy page */

.policy {
	padding: 48px 0 64px;
}

.policy-body {
	max-width: 760px;
}

.policy h1 {
	font-size: 2rem;
	margin: 0 0 6px;
}

.policy-meta {
	color: var(--ink-faint);
	font-size: 0.9rem;
	margin: 0 0 32px;
}

.policy h2 {
	font-size: 1.3rem;
	margin: 40px 0 12px;
	padding-top: 24px;
	border-top: 1px solid var(--border);
}

.policy p,
.policy li {
	color: var(--ink);
	font-size: 0.98rem;
}

.policy ul {
	padding-left: 22px;
}

.policy li {
	margin-bottom: 6px;
}

/* Responsive */

@media (max-width: 800px) {
	.hero .wrap,
	.install-panel {
		grid-template-columns: 1fr;
	}

	.install-actions {
		justify-content: flex-start;
	}

	.mock-popup {
		justify-self: start;
	}

	section {
		padding: 44px 0;
	}

	.hero {
		padding: 52px 0 44px;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
}