/*
Theme Name:   The Differential
Theme URI:    https://example.com/
Description:  News network child theme for SmartMag. Adds a veterinary news masthead, a breaking news bar, a custom homepage template, a ranked "The differential" most-read list, and a newsletter box.
Author:       Andrew Rocco
Template:     smart-mag
Version:      1.0.1
Requires PHP: 7.4
Text Domain:  the-differential
*/

/* ==========================================================================
   1. Brand tokens
   These feed both our own components and SmartMag's CSS variables, so the
   rest of the parent theme (single posts, archives, widgets) picks up the
   same palette and type.
   ========================================================================== */

:root,
.s-light {
	--tdx-scrub: #1F5C4A;
	--tdx-scrub-dark: #143D31;
	--tdx-ink: #1A2226;
	--tdx-muted: #5B6B68;
	--tdx-paper: #FFFFFF;
	--tdx-wash: #EEF3F1;
	--tdx-line: #D6E0DD;
	--tdx-alert: #F2A900;
	--tdx-on-scrub: #FFFFFF;

	/* SmartMag overrides */
	--c-main: var(--tdx-scrub);
	--c-main-rgb: 31, 92, 74;
	--c-headings: var(--tdx-ink);
	--c-links: var(--tdx-ink);
	--c-excerpts: var(--tdx-muted);
	--c-post-meta: var(--tdx-muted);
	--c-separator: var(--tdx-line);
	--c-separator2: var(--tdx-line);
	--footer-bg: var(--tdx-wash);
	--footer-lower-bg: var(--tdx-wash);
}

.s-dark:not(i),
.site-s-dark,
.site-s-dark .s-light {
	--tdx-scrub: #5FB39A;
	--tdx-scrub-dark: #0F2A22;
	--tdx-ink: #E6ECEA;
	--tdx-muted: #9FB0AC;
	--tdx-paper: #121A18;
	--tdx-wash: #1A2522;
	--tdx-line: #2A3834;
	--tdx-alert: #F2B829;
	--tdx-on-scrub: #0F2A22;

	--c-main: var(--tdx-scrub);
	--c-main-rgb: 95, 179, 154;
	--c-headings: var(--tdx-ink);
	--c-links: var(--tdx-ink);
	--c-excerpts: var(--tdx-muted);
	--c-post-meta: var(--tdx-muted);
}

:root {
	--tdx-serif: "Newsreader", Georgia, "Times New Roman", serif;
	--tdx-sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

	/* SmartMag type: serif headlines, Public Sans for UI and body */
	--body-font: var(--tdx-sans);
	--ui-font: var(--tdx-sans);
	--title-font: var(--tdx-serif);
	--h-font: var(--tdx-serif);
	--text-h-font: var(--tdx-serif);
	--text-size: 16px;
	--text-lh: 1.55;
	--main-width: 1180px;
}

/* Serif article body reads better at a slightly taller line height */
.post-content,
.entry-content {
	font-family: var(--tdx-serif);
	line-height: 1.7;
}

.tdx a:focus-visible,
.tdx button:focus-visible,
.tdx input:focus-visible,
.tdx-masthead a:focus-visible,
.tdx-masthead button:focus-visible,
.tdx-masthead input:focus-visible {
	outline: 3px solid var(--tdx-alert);
	outline-offset: 2px;
}

.tdx-wrap {
	max-width: var(--main-width);
	margin: 0 auto;
	padding: 0 20px;
}

.tdx-sr-only {
	position: absolute !important;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
}

.tdx-btn {
	font: 600 14px/1.2 var(--tdx-sans);
	border-radius: 6px;
	padding: 9px 14px;
	border: 1px solid var(--tdx-scrub);
	background: var(--tdx-scrub);
	color: var(--tdx-on-scrub);
	cursor: pointer;
	display: inline-block;
	text-decoration: none;
}
.tdx-btn:hover { background: var(--tdx-scrub-dark); color: #fff; }
.tdx-btn.is-ghost { background: transparent; color: var(--tdx-scrub); }
.tdx-btn.is-ghost:hover { background: var(--tdx-wash); color: var(--tdx-scrub); }

/* ==========================================================================
   2. Breaking bar
   ========================================================================== */

.tdx-breaking {
	background: var(--tdx-scrub-dark);
	color: #fff;
	font: 400 14px/1.4 var(--tdx-sans);
}
.tdx-breaking .tdx-wrap {
	display: flex;
	gap: 12px;
	align-items: center;
	padding-top: 9px;
	padding-bottom: 9px;
}
.tdx-pill {
	background: var(--tdx-alert);
	color: #1A2226;
	font-weight: 700;
	font-size: 13px;
	border-radius: 3px;
	padding: 2px 8px;
	white-space: nowrap;
}
.tdx-breaking a {
	color: #fff;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	min-width: 0;
}
.tdx-breaking a:hover { text-decoration: underline; color: #fff; }

/* ==========================================================================
   3. Masthead and section nav
   ========================================================================== */

.tdx-masthead {
	background: var(--tdx-paper);
	color: var(--tdx-ink);
	font-family: var(--tdx-sans);
}
.tdx-mast-top {
	border-bottom: 1px solid var(--tdx-line);
}
.tdx-mast-top .tdx-wrap {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 16px;
	flex-wrap: wrap;
	padding-top: 22px;
	padding-bottom: 14px;
}
.tdx-logo {
	font-family: var(--tdx-serif);
	font-weight: 700;
	font-size: clamp(34px, 6vw, 54px);
	line-height: 1;
	letter-spacing: -0.02em;
	display: inline-flex;
	align-items: baseline;
	gap: 10px;
	color: var(--tdx-ink);
	text-decoration: none;
}
.tdx-logo:hover { color: var(--tdx-ink); }
.tdx-logo img { max-height: 60px; width: auto; }
.tdx-delta {
	display: inline-grid;
	place-items: center;
	width: 0.9em;
	height: 0.9em;
	background: var(--tdx-scrub);
	color: var(--tdx-on-scrub);
	border-radius: 6px;
	font-size: 0.8em;
	transform: translateY(0.06em);
}
.tdx-tagline {
	color: var(--tdx-muted);
	font-size: 14px;
	margin: 6px 0 0;
}
.tdx-mast-actions {
	display: flex;
	gap: 10px;
	align-items: center;
	flex-wrap: wrap;
}
.tdx-search {
	display: flex;
	gap: 6px;
}
.tdx-search input[type="search"] {
	font: 15px var(--tdx-sans);
	padding: 8px 12px;
	border: 1px solid var(--tdx-line);
	border-radius: 6px;
	background: var(--tdx-paper);
	color: var(--tdx-ink);
	width: 190px;
	height: auto;
}

.tdx-sections {
	border-bottom: 3px solid var(--tdx-scrub);
	background: var(--tdx-paper);
}
.tdx-sections ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: 26px;
	overflow-x: auto;
	scrollbar-width: none;
	font-weight: 600;
	font-size: 15px;
}
.tdx-sections ul::-webkit-scrollbar { display: none; }
.tdx-sections li { margin: 0; }
.tdx-sections li a {
	display: block;
	padding: 12px 0;
	white-space: nowrap;
	color: var(--tdx-ink);
	text-decoration: none;
}
.tdx-sections li a:hover { color: var(--tdx-scrub); }
.tdx-sections .current-menu-item > a,
.tdx-sections .current-cat > a,
.tdx-sections a[aria-current] {
	color: var(--tdx-scrub);
	box-shadow: inset 0 -3px 0 var(--tdx-scrub);
}
/* Dropdowns aren't used in this nav, so hide any sub-menus that get added */
.tdx-sections .sub-menu { display: none; }

/* ==========================================================================
   4. Homepage template
   ========================================================================== */

.tdx {
	color: var(--tdx-ink);
	font-family: var(--tdx-sans);
	font-size: 16px;
	line-height: 1.5;
}
.tdx a { color: inherit; text-decoration: none; }
.tdx a:hover h2,
.tdx a:hover h3,
.tdx a:hover .tdx-rank-title {
	text-decoration: underline;
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
}
.tdx h2, .tdx h3 { color: var(--tdx-ink); }

.tdx-kicker {
	color: var(--tdx-scrub);
	font-weight: 700;
	font-size: 14px;
	margin: 0 0 6px;
}
.tdx-byline {
	font-size: 13px;
	color: var(--tdx-muted);
	margin: 0;
}
.tdx-byline strong { color: var(--tdx-ink); font-weight: 600; }

/* Image slots, with a branded fallback when a post has no featured image */
.tdx-media {
	display: block;
	border-radius: 6px;
	overflow: hidden;
	background: linear-gradient(135deg, var(--tdx-scrub) 0%, var(--tdx-scrub-dark) 100%);
	margin-bottom: 14px;
}
.tdx-media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.tdx-media.is-lead { aspect-ratio: 16 / 9; }
.tdx-media.is-card { aspect-ratio: 4 / 3; margin-bottom: 10px; }
.tdx-media.is-empty {
	display: grid;
	place-items: center;
	color: rgba(255, 255, 255, 0.85);
	font-family: var(--tdx-serif);
	font-size: 34px;
}
.tdx-media.is-card.is-empty {
	background: var(--tdx-wash);
	color: var(--tdx-scrub);
}

/* Top: lead story and side stories */
.tdx-top {
	display: grid;
	grid-template-columns: 2fr 1fr;
	gap: 36px;
	padding: 30px 0 36px;
	border-bottom: 1px solid var(--tdx-line);
}
.tdx-lead h2 {
	font-family: var(--tdx-serif);
	font-weight: 700;
	font-size: clamp(28px, 4vw, 42px);
	line-height: 1.1;
	letter-spacing: -0.01em;
	margin: 0 0 12px;
	max-width: 22ch;
}
.tdx-dek {
	font-family: var(--tdx-serif);
	font-size: 20px;
	line-height: 1.45;
	color: var(--tdx-muted);
	margin: 0 0 12px;
	max-width: 60ch;
}
.tdx-side article {
	padding: 0 0 18px;
	margin: 0 0 18px;
	border-bottom: 1px solid var(--tdx-line);
}
.tdx-side article:last-child { border-bottom: 0; margin-bottom: 0; }
.tdx-side h3 {
	font-family: var(--tdx-serif);
	font-weight: 600;
	font-size: 21px;
	line-height: 1.2;
	margin: 0 0 6px;
}
.tdx-side p.tdx-excerpt {
	margin: 0;
	color: var(--tdx-muted);
	font-size: 15px;
}

/* Body: main column and rail */
.tdx-body {
	display: grid;
	grid-template-columns: 2fr 1fr;
	gap: 36px;
	padding: 32px 0 20px;
}
.tdx-section-head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	border-top: 3px solid var(--tdx-ink);
	padding-top: 10px;
	margin: 0 0 18px;
}
.tdx-section-head h2 {
	font-family: var(--tdx-serif);
	font-size: 26px;
	margin: 0;
}
.tdx-section-head a {
	font-size: 14px;
	font-weight: 600;
	color: var(--tdx-scrub);
}
.tdx-cards {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 22px;
	margin-bottom: 38px;
}
.tdx-card h3 {
	font-family: var(--tdx-serif);
	font-weight: 600;
	font-size: 19px;
	line-height: 1.25;
	margin: 0 0 6px;
}
.tdx-card .tdx-byline { font-size: 12px; }

.tdx-list article {
	display: grid;
	grid-template-columns: 120px 1fr;
	gap: 16px;
	padding: 16px 0;
	border-bottom: 1px solid var(--tdx-line);
}
.tdx-time {
	font-size: 13px;
	color: var(--tdx-muted);
	padding-top: 3px;
}
.tdx-list h3 {
	font-family: var(--tdx-serif);
	font-weight: 600;
	font-size: 20px;
	line-height: 1.25;
	margin: 0 0 4px;
}
.tdx-list p {
	margin: 0;
	color: var(--tdx-muted);
	font-size: 15px;
	max-width: 62ch;
}
.tdx-more {
	margin: 22px 0 0;
}

/* Rail: the ranked differential */
.tdx-ddx {
	background: var(--tdx-wash);
	border-radius: 8px;
	padding: 20px 20px 8px;
	margin-bottom: 26px;
}
.tdx-ddx h2 {
	font-family: var(--tdx-serif);
	font-size: 24px;
	margin: 0 0 2px;
}
.tdx-ddx .tdx-sub {
	font-size: 13px;
	color: var(--tdx-muted);
	margin: 0 0 14px;
}
.tdx-ddx ol {
	list-style: none;
	margin: 0;
	padding: 0;
	counter-reset: tdx-rank;
}
.tdx-ddx li {
	counter-increment: tdx-rank;
	display: grid;
	grid-template-columns: 34px 1fr;
	gap: 10px;
	padding: 12px 0;
	margin: 0;
	border-top: 1px solid var(--tdx-line);
}
.tdx-ddx li::before {
	content: counter(tdx-rank);
	font-family: var(--tdx-serif);
	font-weight: 700;
	font-size: 26px;
	line-height: 1;
	color: var(--tdx-scrub);
}
.tdx-rank-title {
	font-family: var(--tdx-serif);
	font-weight: 600;
	font-size: 17px;
	line-height: 1.25;
}
.tdx-bar {
	height: 4px;
	border-radius: 2px;
	background: var(--tdx-line);
	margin-top: 8px;
	overflow: hidden;
}
.tdx-bar span {
	display: block;
	height: 100%;
	background: var(--tdx-scrub);
}

.tdx-newsletter {
	border: 2px solid var(--tdx-scrub);
	border-radius: 8px;
	padding: 20px;
	margin-bottom: 26px;
	background: var(--tdx-paper);
}
.tdx-newsletter h2 {
	font-family: var(--tdx-serif);
	font-size: 22px;
	margin: 0 0 6px;
}
.tdx-newsletter p {
	margin: 0 0 14px;
	font-size: 15px;
	color: var(--tdx-muted);
}
.tdx-newsletter form {
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.tdx-newsletter input[type="email"] {
	font: 15px var(--tdx-sans);
	padding: 10px 12px;
	border: 1px solid var(--tdx-line);
	border-radius: 6px;
	background: var(--tdx-paper);
	color: var(--tdx-ink);
	height: auto;
}

.tdx-opinion article {
	padding: 14px 0;
	border-top: 1px solid var(--tdx-line);
}
.tdx-opinion .tdx-section-head { margin-bottom: 4px; }
.tdx-who {
	font-size: 13px;
	color: var(--tdx-scrub);
	font-weight: 600;
	margin: 0 0 4px;
}
.tdx-opinion h3 {
	font-family: var(--tdx-serif);
	font-style: italic;
	font-weight: 600;
	font-size: 18px;
	line-height: 1.3;
	margin: 0;
}

.tdx-empty {
	padding: 40px 0;
	color: var(--tdx-muted);
}

/* ==========================================================================
   5. Footer
   ========================================================================== */

.tdx-footer {
	background: var(--tdx-scrub-dark);
	color: #DCE7E3;
	margin-top: 40px;
	font-family: var(--tdx-sans);
	font-size: 14px;
}
.tdx-footer .tdx-wrap {
	display: flex;
	justify-content: space-between;
	gap: 20px;
	flex-wrap: wrap;
	padding-top: 30px;
	padding-bottom: 30px;
}
.tdx-footer .tdx-logo { font-size: 30px; color: #fff; }
.tdx-footer p { margin: 6px 0 0; }
.tdx-footer ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	gap: 18px;
	flex-wrap: wrap;
}
.tdx-footer a { color: #DCE7E3; text-decoration: none; }
.tdx-footer a:hover { color: #fff; text-decoration: underline; }
.tdx-copy {
	border-top: 1px solid rgba(255, 255, 255, 0.12);
	font-size: 13px;
}
.tdx-copy .tdx-wrap { padding-top: 14px; padding-bottom: 14px; }

/* ==========================================================================
   6. Responsive
   ========================================================================== */

@media (max-width: 900px) {
	.tdx-top,
	.tdx-body { grid-template-columns: 1fr; }
	.tdx-cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
	.tdx-cards { grid-template-columns: 1fr; }
	.tdx-list article { grid-template-columns: 1fr; gap: 4px; }
	.tdx-mast-actions .is-ghost { display: none; }
	.tdx-search input[type="search"] { width: 140px; }
}

@media (prefers-reduced-motion: reduce) {
	.tdx *, .tdx-masthead * { transition: none !important; }
}