/**
 * Hayder Voice — Components
 * Buttons, cards, pills, badges, reading progress.
 */

@layer components {

	/* ============================================================
	 * BUTTONS
	 * ============================================================ */

	.btn {
		display: inline-flex;
		align-items: center;
		gap: 0.5em;
		padding: 0.7em 1.6em;
		font-family: var(--font-sans);
		font-size: var(--text-sm);
		font-weight: 500;
		letter-spacing: 0.02em;
		line-height: 1;
		border-radius: var(--radius-full);
		border: 1px solid transparent;
		cursor: pointer;
		text-decoration: none;
		transition: var(--transition-base);
		white-space: nowrap;
		user-select: none;
		position: relative;
		overflow: hidden;
	}

	.btn::before {
		content: '';
		position: absolute;
		inset: 0;
		background: oklch(100% 0 0 / 0);
		transition: background var(--duration-fast) var(--ease-smooth);
	}

	.btn:hover::before { background: oklch(100% 0 0 / 0.06); }
	.btn:active::before { background: oklch(100% 0 0 / 0.12); }

	/* Amber filled button */
	.btn--amber {
		background: var(--c-amber);
		color: var(--c-void);
		border-color: var(--c-amber);
		font-weight: 600;
	}

	.btn--amber:hover {
		background: var(--c-amber-bright);
		border-color: var(--c-amber-bright);
		color: var(--c-void);
		transform: translateY(-1px);
		box-shadow: var(--shadow-amber);
	}

	/* Outline button */
	.btn--outline {
		background: transparent;
		color: var(--c-body);
		border-color: var(--c-border-mid);
	}

	.btn--outline:hover {
		color: var(--c-heading);
		border-color: var(--c-amber-border);
		background: var(--c-amber-surface);
	}

	/* Ghost button */
	.btn--ghost {
		background: transparent;
		color: var(--c-muted);
		border-color: transparent;
	}

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

	/* Text amber button */
	.btn--text-amber {
		background: none;
		border: none;
		color: var(--c-amber);
		padding-inline: 0;
		border-radius: 0;
		font-weight: 500;
	}

	.btn--text-amber:hover {
		color: var(--c-amber-bright);
	}

	.btn--text-amber:hover::before { display: none; }

	/* Size variants */
	.btn--sm { padding: 0.5em 1.2em; font-size: var(--text-xs); }
	.btn--lg { padding: 0.9em 2rem;  font-size: var(--text-base); }
	.btn--xl { padding: 1.1em 2.4rem; font-size: var(--text-md); }

	/* Icon-only button */
	.btn-icon {
		display: inline-flex;
		align-items: center;
		justify-content: center;
		width: 40px;
		height: 40px;
		border-radius: var(--radius-full);
		border: 1px solid var(--c-border);
		background: transparent;
		color: var(--c-muted);
		cursor: pointer;
		transition: var(--transition-base);
	}

	.btn-icon:hover {
		color: var(--c-heading);
		border-color: var(--c-border-mid);
		background: var(--c-surface);
	}

	/* ============================================================
	 * CATEGORY / TAG LABELS
	 * ============================================================ */

	.post-category-label {
		display: inline-flex;
		align-items: center;
		font-family: var(--font-sans);
		font-size: var(--text-2xs);
		font-weight: 600;
		letter-spacing: var(--ls-wider);
		text-transform: uppercase;
		color: var(--c-amber);
		text-decoration: none;
		margin-bottom: 0.75rem;
		transition: color var(--duration-fast) var(--ease-smooth);
	}

	.post-category-label:hover { color: var(--c-amber-bright); }

	/* Tag pill */
	.tag-pill {
		display: inline-flex;
		align-items: center;
		padding: 0.3em 0.8em;
		font-family: var(--font-sans);
		font-size: var(--text-xs);
		font-weight: 500;
		color: var(--c-muted);
		background: var(--c-surface);
		border: 1px solid var(--c-border);
		border-radius: var(--radius-full);
		text-decoration: none;
		transition: var(--transition-base);
		white-space: nowrap;
	}

	.tag-pill:hover {
		color: var(--c-amber);
		border-color: var(--c-amber-border);
		background: var(--c-amber-surface);
	}

	/* Emotion pill (hero marquee) */
	.emotion-pill {
		display: inline-flex;
		align-items: center;
		padding: 0.4em 1em;
		font-family: var(--font-serif);
		font-size: var(--text-sm);
		font-style: italic;
		color: var(--c-dust);
		background: transparent;
		border: 1px solid var(--c-border);
		border-radius: var(--radius-full);
		text-decoration: none;
		transition: var(--transition-base);
		white-space: nowrap;
	}

	.emotion-pill:hover {
		color: var(--c-amber);
		border-color: var(--c-amber-border);
		background: var(--c-amber-surface);
	}

	/* ============================================================
	 * POST CARD
	 * ============================================================ */

	.post-card {
		display: flex;
		flex-direction: column;
		background: transparent;
		transition: var(--transition-base);
		position: relative;
	}

	.post-card__image-link {
		display: block;
		text-decoration: none;
		overflow: hidden;
		border-radius: var(--radius-md);
		margin-bottom: 1.25rem;
	}

	.post-card__image {
		aspect-ratio: 16 / 10;
		overflow: hidden;
		border-radius: var(--radius-md);
		background: var(--c-surface);
	}

	.post-card__img {
		width: 100%;
		height: 100%;
		object-fit: cover;
		transition: transform var(--duration-slow) var(--ease-smooth);
	}

	.post-card:hover .post-card__img {
		transform: scale(1.04);
	}

	.post-card__body {
		display: flex;
		flex-direction: column;
		flex: 1;
	}

	.post-card__title {
		font-family: var(--font-serif);
		font-size: var(--text-lg);
		font-weight: 400;
		line-height: var(--lh-snug);
		color: var(--c-heading);
		margin-bottom: 0.75rem;
		text-wrap: balance;
	}

	.post-card__title-link {
		color: inherit;
		text-decoration: none;
		transition: color var(--duration-fast) var(--ease-smooth);
	}

	.post-card__title-link:hover { color: var(--c-amber); }

	.post-card__excerpt {
		font-family: var(--font-sans);
		font-size: var(--text-sm);
		color: var(--c-muted);
		line-height: var(--lh-relaxed);
		margin-bottom: 1rem;
		flex: 1;
	}

	.post-card__footer {
		display: flex;
		align-items: center;
		gap: 0.75rem;
		margin-top: auto;
	}

	/* ============================================================
	 * POST META
	 * ============================================================ */

	.post-meta {
		display: flex;
		align-items: center;
		flex-wrap: wrap;
		gap: 0.35rem;
		font-family: var(--font-sans);
		font-size: var(--text-xs);
		color: var(--c-dust);
	}

	.post-meta__date { color: var(--c-dust); }
	.post-meta__sep  { color: var(--c-border-mid); }
	.post-meta__reading-time { color: var(--c-dust); }
	.post-meta__author-link { color: var(--c-muted); text-decoration: none; }
	.post-meta__author-link:hover { color: var(--c-amber); }

	/* ============================================================
	 * READING PROGRESS BAR
	 * ============================================================ */

	.reading-progress {
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		height: 2px;
		z-index: calc(var(--z-header) + 1);
		background: var(--c-border);
		pointer-events: none;
	}

	.reading-progress__bar {
		height: 100%;
		background: linear-gradient(to right, var(--c-amber), var(--c-ember));
		transform-origin: left;
		transform: scaleX(0);
		/* CSS Scroll-driven animation (progressive enhancement) */
		animation: reading-progress-fill linear;
		animation-timeline: scroll(root block);
		animation-range: 0% 100%;
	}

	@keyframes reading-progress-fill {
		from { transform: scaleX(0); }
		to   { transform: scaleX(1); }
	}

	/* ============================================================
	 * PAGINATION
	 * ============================================================ */

	.nav-links {
		display: flex;
		align-items: center;
		justify-content: center;
		gap: 0.5rem;
		flex-wrap: wrap;
		padding: var(--space-12) 0;
	}

	.page-numbers {
		display: inline-flex;
		align-items: center;
		justify-content: center;
		width: 40px;
		height: 40px;
		border-radius: var(--radius-full);
		border: 1px solid var(--c-border);
		color: var(--c-muted);
		text-decoration: none;
		font-family: var(--font-sans);
		font-size: var(--text-sm);
		transition: var(--transition-base);
	}

	.page-numbers:hover {
		color: var(--c-amber);
		border-color: var(--c-amber-border);
		background: var(--c-amber-surface);
	}

	.page-numbers.current {
		background: var(--c-amber);
		color: var(--c-void);
		border-color: var(--c-amber);
		font-weight: 600;
	}

	.page-numbers.dots {
		border: none;
		background: none;
	}

	.nav-previous a,
	.nav-next a {
		display: inline-flex;
		align-items: center;
		gap: 0.5rem;
		padding: 0.5rem 1rem;
		border-radius: var(--radius-full);
		border: 1px solid var(--c-border);
		color: var(--c-muted);
		font-family: var(--font-sans);
		font-size: var(--text-sm);
		text-decoration: none;
		transition: var(--transition-base);
	}

	.nav-previous a:hover,
	.nav-next a:hover {
		color: var(--c-amber);
		border-color: var(--c-amber-border);
	}

	/* ============================================================
	 * BACK TO TOP
	 * ============================================================ */

	.back-to-top {
		position: fixed;
		bottom: 2rem;
		right: 2rem;
		z-index: var(--z-sticky);
		width: 44px;
		height: 44px;
		border-radius: var(--radius-full);
		background: var(--c-surface);
		border: 1px solid var(--c-border);
		color: var(--c-muted);
		cursor: pointer;
		display: flex;
		align-items: center;
		justify-content: center;
		transition: var(--transition-base);
		opacity: 0;
		transform: translateY(8px);
		pointer-events: none;
	}

	.back-to-top[data-visible="true"] {
		opacity: 1;
		transform: translateY(0);
		pointer-events: auto;
	}

	.back-to-top:hover {
		color: var(--c-amber);
		border-color: var(--c-amber-border);
		background: var(--c-amber-surface);
		transform: translateY(-2px);
	}

	/* ============================================================
	 * NO RESULTS
	 * ============================================================ */

	.no-results {
		padding: var(--space-16) var(--container-pad);
		text-align: center;
		max-width: var(--container-sm);
		margin-inline: auto;
	}

	.no-results__title {
		font-size: var(--text-2xl);
		margin-bottom: 1rem;
	}

	.no-results__text {
		color: var(--c-muted);
		margin-bottom: 2rem;
	}

} /* @layer components */