/* ==========================================================================
   Impression Insights — Automation Case Studies
   Brand: Orange (#E8742C) / Charcoal (#222A33) / Cream (#FBF7F2) / Lato
   ========================================================================== */

:root {
	--iia-orange: #E8742C;
	--iia-orange-dark: #C75F1E;
	--iia-charcoal: #222A33;
	--iia-charcoal-soft: #3A4552;
	--iia-cream: #FBF7F2;
	--iia-border: #E5DDD2;
	--iia-muted: #6F7782;
	--iia-radius: 12px;
	--iia-shadow: 0 6px 22px rgba(34, 42, 51, 0.08);
	--iia-font: 'Lato', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
}

.iia-wrap, .iia-wrap * {
	box-sizing: border-box;
}

.iia-wrap {
	font-family: var(--iia-font);
	color: var(--iia-charcoal);
	max-width: 1180px;
	margin: 0 auto;
	padding: 56px 24px 96px;
	line-height: 1.6;
}

.iia-wrap h1, .iia-wrap h2, .iia-wrap h3, .iia-wrap h4 {
	font-family: var(--iia-font);
	font-weight: 900;
	color: var(--iia-charcoal);
	letter-spacing: -0.01em;
	line-height: 1.15;
}

.iia-wrap p { color: var(--iia-charcoal-soft); }

.iia-eyebrow {
	text-transform: uppercase;
	letter-spacing: 0.18em;
	font-size: 0.78rem;
	font-weight: 700;
	color: var(--iia-orange);
	margin: 0 0 12px;
}

/* ---------- Archive hero ---------- */
.iia-archive-hero {
	text-align: center;
	margin-bottom: 40px;
}
.iia-archive-title {
	font-size: clamp(2rem, 4vw, 3rem);
	margin: 0 0 16px;
}
.iia-archive-lede {
	font-size: 1.1rem;
	max-width: 720px;
	margin: 0 auto;
}

/* ---------- Filter chips ---------- */
.iia-filter {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	justify-content: center;
	margin: 0 0 40px;
}
.iia-chip {
	display: inline-block;
	padding: 8px 16px;
	border-radius: 999px;
	border: 1px solid var(--iia-border);
	background: #fff;
	color: var(--iia-charcoal);
	text-decoration: none;
	font-size: 0.9rem;
	font-weight: 700;
	transition: all 0.15s ease;
}
.iia-chip:hover { border-color: var(--iia-orange); color: var(--iia-orange); }
.iia-chip.is-active {
	background: var(--iia-charcoal);
	border-color: var(--iia-charcoal);
	color: #fff;
}

/* ---------- Card grid ---------- */
.iia-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 24px;
	margin-bottom: 64px;
}
.iia-card {
	display: flex;
	flex-direction: column;
	background: #fff;
	border: 1px solid var(--iia-border);
	border-radius: var(--iia-radius);
	padding: 28px;
	text-decoration: none;
	color: inherit;
	transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.15s ease;
	min-height: 280px;
	position: relative;
}
.iia-card:hover {
	transform: translateY(-3px);
	box-shadow: var(--iia-shadow);
	border-color: var(--iia-orange);
}
.iia-card-tag {
	display: inline-block;
	background: var(--iia-cream);
	color: var(--iia-charcoal-soft);
	padding: 4px 10px;
	border-radius: 4px;
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	margin-bottom: 14px;
	align-self: flex-start;
}
.iia-card-title {
	font-size: 1.2rem;
	margin: 0 0 12px;
	line-height: 1.3;
}
.iia-card-excerpt {
	font-size: 0.95rem;
	color: var(--iia-charcoal-soft);
	margin: 0 0 18px;
	flex: 1;
}
.iia-card-tools {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0 0 16px;
	padding: 0;
	list-style: none;
}
.iia-tool {
	background: var(--iia-cream);
	border: 1px solid var(--iia-border);
	border-radius: 6px;
	padding: 4px 10px;
	font-size: 0.75rem;
	font-weight: 700;
	color: var(--iia-charcoal);
}
.iia-tool img {
	height: 18px;
	width: auto;
	display: block;
}
.iia-card-cta {
	color: var(--iia-orange);
	font-weight: 700;
	font-size: 0.95rem;
	margin-top: auto;
}

/* ---------- Single page ---------- */
.iia-breadcrumb {
	margin-bottom: 24px;
}
.iia-breadcrumb a {
	color: var(--iia-muted);
	text-decoration: none;
	font-size: 0.9rem;
}
.iia-breadcrumb a:hover { color: var(--iia-orange); }

.iia-single-header {
	margin-bottom: 40px;
}
.iia-single-title {
	font-size: clamp(2rem, 4.5vw, 3rem);
	margin: 0 0 28px;
}

.iia-meta {
	display: grid;
	gap: 8px 24px;
	margin: 0;
	padding: 20px 0 0;
	border-top: 1px solid var(--iia-border);
}
.iia-meta-row {
	display: grid;
	grid-template-columns: 180px 1fr;
	gap: 16px;
	align-items: baseline;
}
.iia-meta-row dt {
	font-weight: 700;
	color: var(--iia-charcoal);
	font-size: 0.85rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}
.iia-meta-row dd {
	margin: 0;
	color: var(--iia-charcoal-soft);
}
.iia-tools-inline {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin: 0;
	padding: 0;
	list-style: none;
}
.iia-tools-inline li {
	background: var(--iia-cream);
	border: 1px solid var(--iia-border);
	border-radius: 6px;
	padding: 3px 10px;
	font-size: 0.8rem;
	font-weight: 700;
}

/* ---------- Flow chart hero ---------- */
.iia-flowchart {
	margin: 0 0 56px;
	padding: 32px;
	background: var(--iia-cream);
	border: 1px solid var(--iia-border);
	border-radius: var(--iia-radius);
	text-align: center;
}
.iia-flowchart img {
	max-width: 100%;
	height: auto;
	display: block;
	margin: 0 auto 16px;
}
.iia-flowchart figcaption {
	font-size: 0.85rem;
	color: var(--iia-muted);
	font-style: normal;
}

/* ---------- Narrative sections ---------- */
.iia-section {
	margin: 0 0 48px;
	max-width: 760px;
}
.iia-section h2 {
	font-size: 1.65rem;
	margin: 0 0 16px;
	padding-bottom: 12px;
	border-bottom: 3px solid var(--iia-orange);
	display: inline-block;
}
.iia-section p { font-size: 1.05rem; }

/* Numbered "How it works" steps */
.iia-steps {
	counter-reset: iia-step;
	list-style: none;
	padding: 0;
	margin: 0;
}
.iia-steps li {
	counter-increment: iia-step;
	position: relative;
	padding: 14px 14px 14px 60px;
	margin: 0 0 10px;
	background: #fff;
	border: 1px solid var(--iia-border);
	border-radius: 8px;
	font-size: 1rem;
	color: var(--iia-charcoal);
}
.iia-steps li::before {
	content: counter(iia-step);
	position: absolute;
	left: 14px;
	top: 50%;
	transform: translateY(-50%);
	background: var(--iia-orange);
	color: #fff;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 900;
	font-size: 0.95rem;
}

/* Results bullets */
.iia-results {
	list-style: none;
	padding: 0;
	margin: 0 0 16px;
}
.iia-results li {
	position: relative;
	padding: 10px 0 10px 36px;
	font-size: 1.02rem;
	border-bottom: 1px dashed var(--iia-border);
	color: var(--iia-charcoal);
}
.iia-results li:last-child { border-bottom: 0; }
.iia-results li::before {
	content: "✓";
	position: absolute;
	left: 0;
	top: 10px;
	width: 24px;
	height: 24px;
	border-radius: 50%;
	background: var(--iia-orange);
	color: #fff;
	font-weight: 900;
	font-size: 0.85rem;
	display: flex;
	align-items: center;
	justify-content: center;
}
.iia-results-narrative {
	font-size: 1rem;
	font-style: normal;
	color: var(--iia-charcoal-soft);
	border-left: 3px solid var(--iia-orange);
	padding: 6px 0 6px 16px;
	margin: 16px 0 0;
}

/* ---------- CTA blocks ---------- */
.iia-single-cta,
.iia-archive-cta {
	background: var(--iia-charcoal);
	color: #fff;
	border-radius: var(--iia-radius);
	padding: 48px 32px;
	text-align: center;
	margin: 56px 0;
}
.iia-single-cta h2,
.iia-archive-cta h2 {
	color: #fff;
	font-size: 1.8rem;
	margin: 0 0 12px;
}
.iia-single-cta p,
.iia-archive-cta p {
	color: rgba(255,255,255,0.8);
	max-width: 580px;
	margin: 0 auto 24px;
}
.iia-btn {
	display: inline-block;
	padding: 14px 28px;
	background: var(--iia-orange);
	color: #fff;
	text-decoration: none;
	border-radius: 999px;
	font-weight: 900;
	font-size: 1rem;
	letter-spacing: 0.02em;
	transition: background 0.15s ease, transform 0.1s ease;
}
.iia-btn:hover {
	background: var(--iia-orange-dark);
	color: #fff;
	transform: translateY(-1px);
}

/* ---------- Related ---------- */
.iia-related h3 {
	font-size: 1.4rem;
	margin: 0 0 20px;
}
.iia-related-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
	gap: 18px;
	margin-bottom: 48px;
}
.iia-card--small {
	min-height: auto;
	padding: 22px;
}
.iia-card--small h4 {
	font-size: 1.05rem;
	margin: 0 0 8px;
	line-height: 1.3;
}
.iia-card--small p {
	font-size: 0.88rem;
	color: var(--iia-charcoal-soft);
	margin: 0 0 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
	.iia-wrap { padding: 32px 16px 56px; }
	.iia-meta-row { grid-template-columns: 1fr; gap: 4px; }
	.iia-flowchart { padding: 16px; }
	.iia-section h2 { font-size: 1.4rem; }
	.iia-single-cta, .iia-archive-cta { padding: 32px 20px; }
}

.iia-empty {
	grid-column: 1 / -1;
	text-align: center;
	padding: 48px;
	color: var(--iia-muted);
}

/* ============================================================
   Layout v1.2 — Challenge/Solution side-by-side
   ============================================================ */

.iia-challenge-solution {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 2rem;
	max-width: 1100px;
	margin: 3.5rem auto;
	padding: 0 1.5rem;
}

.iia-challenge-solution .iia-section {
	background: #fbf7f2;
	border: 1px solid #e5ddd2;
	border-radius: 12px;
	padding: 2.25rem;
	margin: 0;
	max-width: none;
}

.iia-challenge-solution .iia-section h2 {
	margin-top: 0;
	margin-bottom: 1.25rem;
	font-size: 1.5rem;
	color: #222A33;
	position: relative;
	padding-bottom: 0.75rem;
	border-bottom: none;
}

.iia-challenge-solution .iia-section h2::after {
	content: "";
	display: block;
	position: absolute;
	bottom: 0;
	left: 0;
	width: 48px;
	height: 3px;
	background: #E8742C;
	border-radius: 2px;
}

.iia-challenge-solution .iia-section p {
	margin: 0 0 1rem 0;
	line-height: 1.65;
	color: #3a4049;
}

.iia-challenge-solution .iia-section p:last-child { margin-bottom: 0; }

@media (max-width: 820px) {
	.iia-challenge-solution {
		grid-template-columns: 1fr;
		gap: 1.25rem;
		margin: 2.5rem auto;
	}
}