/* ============ Design tokens (dark, AI-themed) ============ */
:root {
	color-scheme: dark;
	--canvas: #191919;
	--surface: #202020;
	--raised: #383836;
	--text: #ffffff;
	--text-secondary: rgba(255, 255, 255, 0.65);
	--border: rgba(255, 255, 255, 0.2);
	--blue: #5e9fe8;
	--blue-soft: rgba(94, 159, 232, 0.12);
	--green: #72bc8f;
	--orange: #de9255;
	--red: #e97366;
	--purple: #bf8eda;

	--space-1: 4px;
	--space-2: 8px;
	--space-3: 12px;
	--space-4: 16px;
	--space-5: 24px;
	--space-6: 32px;
	--space-7: 48px;
	--space-8: 64px;

	--radius: 8px;
	--radius-lg: 12px;
	--max-width: 1120px;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	background: var(--canvas);
	color: var(--text);
	font-size: 16px;
	line-height: 1.5;
}

img {
	max-width: 100%;
	display: block;
}

a {
	color: inherit;
}

code {
	font-family: Menlo, Consolas, monospace;
	background: var(--raised);
	padding: 2px 6px;
	border-radius: 4px;
	font-size: 0.9em;
}

.grad-text {
	background: linear-gradient(90deg, var(--blue), var(--purple));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

/* ============ Nav ============ */
.nav {
	position: sticky;
	top: 0;
	z-index: 10;
	background: rgba(25, 25, 25, 0.85);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--border);
}

.nav__inner {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: var(--space-3) var(--space-5);
	display: flex;
	align-items: center;
	gap: var(--space-5);
}

.nav__brand {
	font-weight: 700;
	font-size: 1.1rem;
	text-decoration: none;
	display: flex;
	align-items: center;
	gap: var(--space-2);
}

.nav__logo {
	font-size: 1.3rem;
}

.nav__links {
	display: flex;
	gap: var(--space-5);
	flex: 1;
}

.nav__links a {
	color: var(--text-secondary);
	text-decoration: none;
	font-size: 0.95rem;
}

.nav__links a:hover,
.nav__links a:focus-visible {
	color: var(--text);
}

.nav__badge {
	font-size: 0.8rem;
	color: var(--blue);
	background: var(--blue-soft);
	padding: var(--space-1) var(--space-3);
	border-radius: 999px;
	white-space: nowrap;
	display: none;
}

@media (min-width: 860px) {
	.nav__badge {
		display: inline-block;
	}
}

@media (max-width: 700px) {
	.nav__links {
		display: none;
	}
}

/* ============ Hero ============ */
.hero {
	padding: var(--space-8) var(--space-5) var(--space-7);
	background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(94, 159, 232, 0.18), transparent),
		radial-gradient(ellipse 60% 50% at 90% 10%, rgba(191, 142, 218, 0.12), transparent);
}

.hero__inner {
	max-width: var(--max-width);
	margin: 0 auto;
	text-align: center;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--space-4);
}

.pill {
	display: inline-block;
	font-size: 0.8rem;
	color: var(--text-secondary);
	border: 1px solid var(--border);
	padding: var(--space-1) var(--space-4);
	border-radius: 999px;
}

.hero h1 {
	font-size: clamp(2rem, 5vw, 3.25rem);
	line-height: 1.15;
	margin: 0;
	max-width: 18ch;
}

.hero__sub {
	color: var(--text-secondary);
	max-width: 62ch;
	font-size: 1.05rem;
	margin: 0;
}

.hero__cta {
	display: flex;
	gap: var(--space-3);
	flex-wrap: wrap;
	justify-content: center;
	margin-top: var(--space-2);
}

.hero__stats {
	list-style: none;
	display: flex;
	gap: var(--space-7);
	margin: var(--space-6) 0 0;
	padding: 0;
	flex-wrap: wrap;
	justify-content: center;
}

.hero__stats li {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--space-1);
}

.hero__stats strong {
	font-size: 1.5rem;
	color: var(--blue);
}

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

/* ============ Buttons ============ */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	padding: var(--space-3) var(--space-5);
	border-radius: var(--radius);
	font-size: 0.95rem;
	font-weight: 600;
	text-decoration: none;
	border: 1px solid transparent;
	cursor: pointer;
	min-height: 44px;
	transition: transform 0.05s ease, opacity 0.15s ease;
}

.btn:active {
	transform: translateY(1px);
}

.btn--primary {
	background: linear-gradient(90deg, var(--blue), #6f7ff0);
	color: #0b1220;
}

.btn--primary:hover {
	opacity: 0.92;
}

.btn--ghost {
	background: transparent;
	border-color: var(--border);
	color: var(--text);
}

.btn--ghost:hover {
	background: var(--surface);
}

.btn[hidden] {
	display: none;
}

/* ============ Sections ============ */
.section {
	padding: var(--space-8) var(--space-5);
	max-width: var(--max-width);
	margin: 0 auto;
}

.section--muted {
	max-width: none;
	background: var(--surface);
	border-top: 1px solid var(--border);
	border-bottom: 1px solid var(--border);
}

.section--muted > * {
	max-width: var(--max-width);
	margin-left: auto;
	margin-right: auto;
}

.section__head {
	margin-bottom: var(--space-6);
	max-width: 640px;
}

.section__head h2 {
	font-size: clamp(1.5rem, 3vw, 2rem);
	margin: 0 0 var(--space-2);
}

.section__head p {
	color: var(--text-secondary);
	margin: 0;
}

/* ============ Tool grid & cards ============ */
.tool-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: var(--space-5);
}

.tool-card {
	position: relative;
	text-align: left;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
	font: inherit;
	color: inherit;
	cursor: pointer;
	transition: border-color 0.15s ease, transform 0.15s ease;
}

.tool-card--active:hover,
.tool-card--active:focus-visible {
	border-color: var(--blue);
	transform: translateY(-2px);
}

.tool-card--upcoming {
	cursor: default;
	opacity: 0.75;
}

.tool-card__icon {
	font-size: 1.75rem;
}

.tool-card__tag {
	align-self: flex-start;
	font-size: 0.75rem;
	color: var(--green);
	background: rgba(114, 188, 143, 0.12);
	padding: 2px var(--space-2);
	border-radius: 999px;
}

.tool-card__badge {
	align-self: flex-start;
	font-size: 0.75rem;
	color: var(--orange);
	background: rgba(222, 146, 85, 0.12);
	padding: 2px var(--space-2);
	border-radius: 999px;
}

.tool-card h3 {
	margin: 0;
	font-size: 1.1rem;
}

.tool-card p {
	margin: 0;
	color: var(--text-secondary);
	font-size: 0.92rem;
}

.tool-card__cta {
	margin-top: auto;
	color: var(--blue);
	font-size: 0.9rem;
	font-weight: 600;
}

/* ============ Workspace ============ */
.workspace {
	margin-top: var(--space-6);
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
}

.workspace__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-3);
	margin-bottom: var(--space-5);
	flex-wrap: wrap;
}

.workspace__head h3 {
	margin: 0;
}

.workspace__close {
	background: var(--raised);
	border: 1px solid var(--border);
	color: var(--text);
	border-radius: var(--radius);
	padding: var(--space-2) var(--space-4);
	cursor: pointer;
	min-height: 44px;
}

.tool-loading,
.tool-error {
	color: var(--text-secondary);
}

.tool-panel {
	display: flex;
	flex-direction: column;
	gap: var(--space-4);
}

/* ============ Dropzone ============ */
.dropzone {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	text-align: center;
	border: 1.5px dashed var(--border);
	border-radius: var(--radius-lg);
	padding: var(--space-7) var(--space-5);
	cursor: pointer;
	transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:hover,
.dropzone:focus-visible {
	border-color: var(--blue);
	background: var(--blue-soft);
}

.dropzone--active {
	border-color: var(--blue);
	background: var(--blue-soft);
}

.dropzone__icon {
	font-size: 2rem;
}

.dropzone p {
	margin: 0;
}

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

/* ============ Status / chips / prompt ============ */
.tool-status {
	min-height: 1.4em;
	color: var(--text-secondary);
	font-size: 0.92rem;
	margin: 0;
}

.chips {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

.chip {
	background: var(--raised);
	border: 1px solid var(--border);
	color: var(--text);
	border-radius: 999px;
	padding: var(--space-2) var(--space-4);
	font-size: 0.85rem;
	cursor: pointer;
	min-height: 40px;
}

.chip:hover {
	border-color: var(--blue);
}

.prompt-row {
	display: flex;
	gap: var(--space-2);
	flex-wrap: wrap;
}

.prompt-row input {
	flex: 1;
	min-width: 220px;
	background: var(--canvas);
	border: 1px solid var(--border);
	color: var(--text);
	border-radius: var(--radius);
	padding: var(--space-3) var(--space-4);
	font-size: 0.95rem;
	min-height: 44px;
}

.prompt-row input:focus-visible {
	outline: 2px solid var(--blue);
	outline-offset: 1px;
}

.tool-hint {
	font-size: 0.82rem;
	color: var(--text-secondary);
	margin: 0;
}

/* ============ Compare / canvas preview ============ */
.compare {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: var(--space-4);
}

.compare__pane {
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
}

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

.compare__frame {
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
	background: var(--canvas);
	min-height: 160px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.compare__frame--checker img {
	background-image: linear-gradient(45deg, #2a2a2a 25%, transparent 25%), linear-gradient(-45deg, #2a2a2a 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, #2a2a2a 75%), linear-gradient(-45deg, transparent 75%, #2a2a2a 75%);
	background-size: 16px 16px;
	background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.canvas-frame {
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: var(--canvas);
	display: flex;
	justify-content: center;
	padding: var(--space-3);
	overflow: auto;
}

.canvas-frame canvas {
	max-width: 100%;
	height: auto;
	border-radius: 4px;
}

/* ============ Privacy cards ============ */
.privacy-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: var(--space-5);
}

.privacy-card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: var(--space-5);
}

.privacy-card__icon {
	font-size: 1.5rem;
	display: inline-block;
	margin-bottom: var(--space-2);
}

.privacy-card h3 {
	margin: 0 0 var(--space-2);
	font-size: 1.05rem;
}

.privacy-card p {
	margin: 0;
	color: var(--text-secondary);
	font-size: 0.92rem;
}

/* ============ Footer ============ */
.footer {
	text-align: center;
	padding: var(--space-6) var(--space-5) var(--space-8);
	color: var(--text-secondary);
	font-size: 0.85rem;
}

@media (max-width: 480px) {
	.section {
		padding: var(--space-7) var(--space-4);
	}
	.hero {
		padding: var(--space-7) var(--space-4) var(--space-6);
	}
}