/**
 * Booknetic for Theme V4 — Design System cards.
 *
 *   .ds-card             — base card primitive (composable)
 *   .ds-card--feature    — feature card with icon, title, body, CTA
 *   .ds-card--pricing    — pricing card with header/price/features/cta
 *   .ds-card--testimonial— quote + avatar + role
 *   .ds-card--profession — profession select card (icon big + label)
 *   .ds-card--stat       — stat number with label + delta
 *   .ds-card--media      — image-top card
 *   .ds-card--bordered   — heavier border, no shadow
 *   .ds-card--ghost      — transparent bg, only border
 *   .ds-card--interactive— hover lift + clickable cursor
 *   .ds-card--featured   — gradient border ribbon (pricing emphasis)
 */

/* ============================================================ */
/* BASE                                                          */
/* ============================================================ */

.ds-card {
	display: flex;
	flex-direction: column;
	gap: var(--ds-space-3);
	padding: var(--ds-space-5);
	background: var(--ds-color-surface);
	border: 1px solid var(--ds-color-border-subtle);
	border-radius: var(--ds-radius-card);
	box-shadow: var(--ds-shadow-md);
	color: var(--ds-color-text);
	transition: var(--ds-transition-all);
	position: relative;
}

.ds-card--lg      { padding: var(--ds-space-6); border-radius: var(--ds-radius-card-lg); }
.ds-card--sm      { padding: var(--ds-space-4); gap: var(--ds-space-2); }
.ds-card--bordered{ background: transparent; border-color: var(--ds-color-border); box-shadow: none; }
.ds-card--ghost   { background: transparent; border: 0; box-shadow: none; padding: 0; }
.ds-card--flat    { box-shadow: none; }

.ds-card__header {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: var(--ds-space-3);
}

.ds-card__title {
	font-family: var(--ds-font-display);
	font-size: var(--ds-text-lg);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-tight);
	color: var(--ds-color-text);
	margin: 0;
	line-height: var(--ds-leading-snug);
}
.ds-card__subtitle {
	font-size: var(--ds-text-sm);
	color: var(--ds-color-text-muted);
	margin: 0;
	line-height: var(--ds-leading-relaxed);
}
.ds-card__body {
	font-size: var(--ds-text-sm);
	color: var(--ds-color-text-muted);
	line-height: var(--ds-leading-relaxed);
}
.ds-card__footer {
	display: flex;
	align-items: center;
	gap: var(--ds-space-2);
	margin-top: auto;
	padding-top: var(--ds-space-2);
}

.ds-card--interactive {
	cursor: pointer;
	-webkit-tap-highlight-color: transparent;
}
.ds-card--interactive:hover {
	background: var(--ds-color-surface-hover);
	border-color: var(--ds-color-border);
	box-shadow: var(--ds-shadow-lg);
	transform: translate3d(0, -2px, 0);
}
.ds-card--interactive:active { transform: scale(0.99); }

/* ============================================================ */
/* FEATURE CARD                                                  */
/* ============================================================ */

.ds-card--feature {
	gap: var(--ds-space-3);
}
.ds-card--feature .ds-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	background: var(--ds-color-primary-soft);
	color: var(--ds-purple-300);
	border-radius: var(--ds-radius-lg);
	margin-bottom: var(--ds-space-1);
}

/* ============================================================ */
/* PRICING CARD                                                  */
/* ============================================================ */

.ds-card--pricing {
	gap: var(--ds-space-4);
	min-height: 100%;
}
.ds-card--pricing .ds-card__pricing-head {
	display: flex;
	flex-direction: column;
	gap: var(--ds-space-1);
}
.ds-card--pricing .ds-card__plan-name {
	font-size: var(--ds-text-sm);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-wide);
	color: var(--ds-color-text);
	text-transform: uppercase;
	margin: 0;
}
.ds-card--pricing .ds-card__plan-tagline {
	font-size: var(--ds-text-sm);
	color: var(--ds-color-text-muted);
	margin: 0;
}
.ds-card--pricing .ds-card__plan-price {
	display: flex;
	align-items: baseline;
	gap: var(--ds-space-1);
	margin: var(--ds-space-3) 0 var(--ds-space-1);
}
.ds-card--pricing .ds-card__plan-price-amount {
	font-family: var(--ds-font-display);
	font-size: var(--ds-text-6xl);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-tighter);
	color: var(--ds-color-text);
	line-height: 1;
	font-variant-numeric: tabular-nums;
}
.ds-card--pricing .ds-card__plan-price-cycle {
	font-size: var(--ds-text-sm);
	color: var(--ds-color-text-muted);
}
.ds-card--pricing .ds-card__plan-features {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: var(--ds-space-2);
}
.ds-card--pricing .ds-card__plan-features li {
	display: flex;
	align-items: flex-start;
	gap: var(--ds-space-2);
	font-size: var(--ds-text-sm);
	color: var(--ds-color-text-secondary);
	line-height: var(--ds-leading-relaxed);
}
.ds-card--pricing .ds-card__plan-features li::before {
	content: "";
	flex-shrink: 0;
	margin-top: 4px;
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: var(--ds-color-success-soft);
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2334D399' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
	background-size: 10px 10px;
	background-position: center;
	background-repeat: no-repeat;
}
.ds-card--pricing .ds-card__plan-features li.is-locked {
	color: var(--ds-color-text-subtle);
	text-decoration-line: line-through;
	text-decoration-color: rgba(255, 255, 255, 0.15);
}
.ds-card--pricing .ds-card__plan-features li.is-locked::before {
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237A7591' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><line x1='6' y1='12' x2='18' y2='12'/></svg>");
	background-color: rgba(255, 255, 255, 0.04);
}
.ds-card--pricing .ds-card__plan-cta {
	margin-top: auto;
}

/* Featured (recommended) pricing card */
.ds-card--featured {
	background: linear-gradient(180deg, rgba(139, 92, 246, 0.10) 0%, rgba(99, 102, 241, 0.04) 100%);
	border: 1px solid transparent;
	box-shadow: var(--ds-shadow-lg), var(--ds-shadow-glow-sm);
	position: relative;
	overflow: visible;
}
.ds-card--featured::before {
	content: "";
	position: absolute;
	inset: -1px;
	border-radius: inherit;
	padding: 1px;
	background: var(--ds-gradient-brand);
	-webkit-mask:
		linear-gradient(#000 0 0) content-box,
		linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
	        mask-composite: exclude;
	pointer-events: none;
	z-index: 0;
}
.ds-card--featured > * { position: relative; z-index: 1; }

.ds-card__ribbon {
	position: absolute;
	top: -12px;
	left: 50%;
	transform: translateX(-50%);
	display: inline-flex;
	align-items: center;
	gap: var(--ds-space-1);
	padding: 4px 12px;
	background: var(--ds-gradient-cta);
	color: var(--ds-color-primary-contrast);
	font-size: var(--ds-text-2xs);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-wider);
	text-transform: uppercase;
	border-radius: var(--ds-radius-pill);
	box-shadow: var(--ds-shadow-cta);
	z-index: 2;
}

/* ============================================================ */
/* TESTIMONIAL CARD                                              */
/* ============================================================ */

.ds-card--testimonial {
	gap: var(--ds-space-4);
}
.ds-card__quote {
	font-size: var(--ds-text-lg);
	line-height: var(--ds-leading-relaxed);
	color: var(--ds-color-text);
	margin: 0;
	font-style: italic;
	letter-spacing: var(--ds-tracking-tight);
}
.ds-card__quote-mark {
	font-family: var(--ds-font-display);
	font-size: 48px;
	line-height: 0.6;
	color: var(--ds-color-primary);
	opacity: 0.45;
	margin: 0 0 -8px;
}
.ds-card__attribution {
	display: flex;
	align-items: center;
	gap: var(--ds-space-3);
}
.ds-card__attribution-name {
	font-size: var(--ds-text-sm);
	font-weight: var(--ds-font-semibold);
	color: var(--ds-color-text);
	line-height: 1.3;
}
.ds-card__attribution-role {
	font-size: var(--ds-text-xs);
	color: var(--ds-color-text-muted);
}
.ds-card__stars {
	display: inline-flex;
	gap: 2px;
	color: #FBBF24;
}
.ds-card__stars svg { width: 14px; height: 14px; fill: currentColor; }

/* ============================================================ */
/* PROFESSION CARD                                               */
/* ============================================================ */

.ds-card--profession {
	align-items: center;
	text-align: center;
	gap: var(--ds-space-2);
	padding: var(--ds-space-5) var(--ds-space-3);
	cursor: pointer;
	transition: var(--ds-transition-all);
}
.ds-card--profession:hover {
	background: var(--ds-color-surface-active);
	border-color: var(--ds-color-border-focus);
	transform: translate3d(0, -2px, 0);
}
.ds-card--profession.is-selected {
	background: var(--ds-color-surface-active);
	border-color: var(--ds-color-border-focus);
	box-shadow: var(--ds-shadow-glow-sm);
}
.ds-card--profession .ds-card__icon {
	width: 44px;
	height: 44px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	background: var(--ds-color-primary-soft);
	color: var(--ds-purple-300);
	border-radius: var(--ds-radius-lg);
	border: 1px solid var(--ds-color-border-subtle);
}
.ds-card--profession.is-selected .ds-card__icon {
	background: var(--ds-color-primary-soft-h);
	border-color: var(--ds-color-border-focus);
}
.ds-card--profession .ds-card__label {
	font-size: var(--ds-text-sm);
	font-weight: var(--ds-font-semibold);
	color: var(--ds-color-text);
	letter-spacing: var(--ds-tracking-normal);
	line-height: var(--ds-leading-snug);
}

/* ============================================================ */
/* STAT CARD                                                     */
/* ============================================================ */

.ds-card--stat {
	gap: var(--ds-space-1);
	padding: var(--ds-space-5);
}
.ds-card__stat-label {
	font-size: var(--ds-text-2xs);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-widest);
	text-transform: uppercase;
	color: var(--ds-color-text-subtle);
	margin: 0;
}
.ds-card__stat-value {
	font-family: var(--ds-font-display);
	font-size: var(--ds-text-5xl);
	font-weight: var(--ds-font-bold);
	letter-spacing: var(--ds-tracking-tight);
	color: var(--ds-color-text);
	line-height: 1.1;
	font-variant-numeric: tabular-nums;
}
.ds-card__stat-delta {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: var(--ds-text-xs);
	font-weight: var(--ds-font-semibold);
}
.ds-card__stat-delta--up   { color: var(--ds-color-success-text); }
.ds-card__stat-delta--down { color: var(--ds-color-danger-text); }

/* ============================================================ */
/* MEDIA CARD (image top)                                        */
/* ============================================================ */

.ds-card--media {
	overflow: hidden;
	padding: 0;
}
.ds-card--media .ds-card__media {
	display: block;
	width: 100%;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	background: var(--ds-color-surface-muted);
}
.ds-card--media .ds-card__content {
	display: flex;
	flex-direction: column;
	gap: var(--ds-space-2);
	padding: var(--ds-space-4) var(--ds-space-5) var(--ds-space-5);
}

/* ============================================================ */
/* CARD GRID HELPERS                                             */
/* ============================================================ */

.ds-card-grid {
	display: grid;
	gap: var(--ds-space-4);
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.ds-card-grid--lg { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.ds-card-grid--sm { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

/* ============================================================ */
/* REDUCED MOTION                                                */
/* ============================================================ */

@media (prefers-reduced-motion: reduce) {
	.ds-card,
	.ds-card--interactive:hover,
	.ds-card--profession:hover {
		transition: none !important;
		transform: none !important;
	}
}