/**
 * Faaliyet detay sayfaları (AKBULAK-12) — dört sayfa ortak dil: twin-kit ailesi (kakao giriş, ince yeşil işaretler, kesik köşeler).
 *
 * Kompozisyon: kompakt giriş (üst rozet geri bağlantısı → h1 → yeşil çizgi → giriş) → ana içerik: masaüstünde solda yapışkan görsel (5/12), sağda
 * alt başlıklı metin (7/12; her alt başlık kendi çizgisiyle ayrılır, kart yok); mobilde önce görsel (3:2), sonra metin →
 * iletişim çağrısı plakası (kakao, kesik köşe) → diğer faaliyetler (adaçayı bant, küçük görselli bağlantı satırları).
 * Hepsi içeriğe göre büyür (sabit yükseklik yok); boş görsel/metin/çağrı/ilgili alanı bölümü hiç basmaz.
 */

/* =========================================================
   1. Giriş
   ========================================================= */

.brandbase-activity-hero {
	position: relative;
	overflow: hidden;
	background: var(--gradient-brand-dark);
	clip-path: polygon(0 0, 100% 0, 100% calc(100% - clamp(12px, 2vw, 26px)), calc(100% - clamp(36px, 6vw, 84px)) 100%, 0 100%);
	padding-block: clamp(1.5rem, 4vw, 2.25rem) clamp(2.5rem, 6vw, 3.75rem);
}

.brandbase-activity-hero__content {
	position: relative;
	width: fit-content;
	max-width: min(780px, 100%);
	padding: clamp(1.125rem, 3.4vw, 1.5rem) clamp(1.125rem, 3.4vw, 1.75rem) clamp(1rem, 3vw, 1.25rem);
}

.brandbase-activity-hero__content::before,
.brandbase-activity-hero__content::after {
	content: "";
	position: absolute;
	width: clamp(26px, 5vw, 44px);
	height: clamp(26px, 5vw, 44px);
	pointer-events: none;
}

.brandbase-activity-hero__content::before {
	top: 0;
	left: 0;
	border-top: 1.5px solid var(--color-accent-on-dark);
	border-left: 1.5px solid var(--color-accent-on-dark);
}

.brandbase-activity-hero__content::after {
	right: 0;
	bottom: 0;
	border-right: 1.5px solid color-mix(in srgb, var(--color-accent-on-dark) 70%, transparent);
	border-bottom: 1.5px solid color-mix(in srgb, var(--color-accent-on-dark) 70%, transparent);
}

.brandbase-activity-hero__eyebrow {
	display: inline-flex;
	margin: 0 0 var(--space-3);
}

.brandbase-activity-hero__eyebrow a {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	min-height: 32px;
	padding: 0.4rem 0.95rem 0.4rem 0.75rem;
	background-color: var(--color-ice-100);
	clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
	font-family: var(--font-sans);
	font-weight: 700;
	font-size: 0.75rem;
	letter-spacing: 0.1em;
	line-height: 1.3;
	color: var(--color-green-ink);
	text-decoration: none;
}

.brandbase-activity-hero__eyebrow a:hover {
	background-color: var(--color-white);
}

.brandbase-activity-hero__eyebrow a:focus-visible {
	outline: 3px solid var(--color-white);
	outline-offset: 2px;
}

.brandbase-activity-hero__eyebrow-mark {
	flex: none;
	width: 7px;
	height: 7px;
	background-color: var(--color-accent-on-light);
	transform: rotate(45deg);
}

.brandbase-activity-hero__title {
	margin: 0;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(2.125rem, 8.4vw, 3.25rem);
	line-height: 1.06;
	letter-spacing: -0.012em;
	color: var(--color-white);
	text-wrap: balance;
	overflow-wrap: anywhere;
}

.brandbase-activity-hero__line {
	position: relative;
	display: block;
	width: clamp(96px, 20vw, 180px);
	height: 4px;
	margin: var(--space-3) 0 0;
}

.brandbase-activity-hero__line::before {
	content: "";
	position: absolute;
	left: 0;
	top: 50%;
	width: 100%;
	height: 1.5px;
	transform: translateY(-50%);
	background: linear-gradient(90deg, var(--color-accent-on-dark) 0%, var(--color-accent-on-dark) 30%, color-mix(in srgb, var(--color-accent-on-dark) 30%, transparent) 100%);
}

.brandbase-activity-hero__line-node {
	position: absolute;
	right: -2px;
	top: 50%;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	transform: translateY(-50%);
	background-color: var(--color-accent-on-dark);
}

.brandbase-activity-hero__lead {
	margin: var(--space-4) 0 0;
	max-width: 56ch;
	font-family: var(--font-sans);
	font-size: clamp(1rem, 1.7vw, 1.1875rem);
	line-height: 1.6;
	color: color-mix(in srgb, var(--color-white) 94%, var(--color-ice-100));
	text-wrap: pretty;
}

@media (min-width: 900px) {
	.brandbase-activity-hero__title {
		font-size: clamp(3rem, 4.4vw, 4rem);
	}
}

/* =========================================================
   2. Ana içerik
   ========================================================= */

.brandbase-activity-main {
	background:
		radial-gradient(ellipse 110% 40% at 50% -8%, color-mix(in srgb, var(--color-ice-100) 70%, transparent) 0%, transparent 60%),
		var(--color-porcelain);
	padding-block: clamp(1.75rem, 5vw, 4rem) clamp(1.5rem, 4vw, 3rem);
}

.brandbase-activity-main__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: clamp(1.5rem, 4vw, 2.5rem);
	align-items: start;
}

.brandbase-activity-figure {
	position: relative;
	margin: 0;
	min-width: 0;
}

.brandbase-activity-figure__frame {
	display: block;
	overflow: hidden;
	background: var(--color-ice-100);
	clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.brandbase-activity-figure__img {
	display: block;
	width: 100%;
	height: auto;
}

/* Görsel köşesindeki sıra işareti (ana sayfadaki faaliyet numarası; süs). */
.brandbase-activity-figure__index {
	position: absolute;
	left: 0;
	bottom: 0;
	padding: 0.4rem 1rem 0.4rem 0.8rem;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: 1.125rem;
	letter-spacing: 0.04em;
	font-variant-numeric: lining-nums;
	color: var(--color-white);
	background: var(--color-blue-800);
	clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.brandbase-activity-body {
	min-width: 0;
	max-width: 68ch;
}

.brandbase-activity-block {
	padding-block: clamp(1.25rem, 3vw, 1.75rem);
	border-top: 1px solid color-mix(in srgb, var(--color-green-ink) 20%, transparent);
}

.brandbase-activity-block:first-child {
	padding-top: 0;
	border-top: 0;
}

.brandbase-activity-block__title {
	position: relative;
	margin: 0 0 var(--space-3);
	padding-left: 1rem;
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(1.4375rem, 2.6vw, 1.875rem);
	line-height: 1.2;
	letter-spacing: -0.006em;
	color: var(--color-blue-800);
	text-wrap: balance;
	overflow-wrap: anywhere;
}

.brandbase-activity-block__title::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0.5em;
	width: 7px;
	height: 7px;
	background: var(--color-accent-on-light);
	transform: rotate(45deg);
}

.brandbase-activity-block__text {
	margin: 0 0 var(--space-3);
	font-family: var(--font-sans);
	font-size: 1.0625rem;
	line-height: 1.75;
	color: var(--color-ink);
	text-wrap: pretty;
	overflow-wrap: break-word;
}

.brandbase-activity-block__text:last-child {
	margin-bottom: 0;
}

/* Yalnız metin (görsel yok): sade, sol hizalı, okunur ölçüde tek sütun. */
.brandbase-activity-main:not(.brandbase-activity-main--split) .brandbase-activity-body {
	max-width: 72ch;
}

@media (min-width: 900px) {
	.brandbase-activity-main--split .brandbase-activity-main__grid {
		grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
		column-gap: clamp(2.5rem, 5vw, 4.5rem);
	}

	.brandbase-activity-main--split .brandbase-activity-figure {
		position: sticky;
		top: 7rem;
	}
}

/* =========================================================
   3. İletişim çağrısı
   ========================================================= */

.brandbase-activity-cta {
	background: var(--color-porcelain);
	padding-block: clamp(1rem, 3vw, 2rem) clamp(2rem, 5vw, 3.5rem);
}

.brandbase-activity-cta__panel {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: var(--space-5);
	align-items: center;
	padding: clamp(1.5rem, 4vw, 2.5rem);
	background: var(--gradient-brand-dark);
	clip-path: polygon(0 0, calc(100% - clamp(24px, 4vw, 44px)) 0, 100% clamp(24px, 4vw, 44px), 100% 100%, 0 100%);
	color: var(--color-white);
}

.brandbase-activity-cta__text {
	min-width: 0;
}

.brandbase-activity-cta__heading {
	margin: 0 0 var(--space-3);
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(1.625rem, 3vw, 2.25rem);
	line-height: 1.12;
	color: var(--color-white);
	text-wrap: balance;
}

.brandbase-activity-cta__lead {
	margin: 0 0 var(--space-2);
	max-width: 58ch;
	font-family: var(--font-sans);
	font-size: 1rem;
	line-height: 1.65;
	color: color-mix(in srgb, var(--color-white) 94%, var(--color-ice-100));
	text-wrap: pretty;
}

.brandbase-activity-cta__lead:last-child {
	margin-bottom: 0;
}

.brandbase-activity-cta__button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.625rem;
	justify-self: start;
	min-height: 52px;
	padding: 0.75rem 1.5rem;
	font-family: var(--font-sans);
	font-weight: 700;
	font-size: 1rem;
	color: var(--color-blue-800);
	text-decoration: none;
	background: var(--color-white);
	clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
	transition: background-color var(--duration-fast, 160ms) var(--ease-standard, ease);
}

.brandbase-activity-cta__button:hover {
	background: var(--color-ice-100);
}

.brandbase-activity-cta__button:focus-visible {
	outline: 3px solid var(--color-white);
	outline-offset: 3px;
}

@media (min-width: 900px) {
	.brandbase-activity-cta__panel {
		grid-template-columns: minmax(0, 1fr) auto;
		column-gap: 3rem;
	}

	.brandbase-activity-cta__button {
		justify-self: end;
	}
}

/* =========================================================
   4. Diğer faaliyetler
   ========================================================= */

.brandbase-activity-related {
	background: var(--color-ice-100);
	border-top: 1px solid color-mix(in srgb, var(--color-green-ink) 14%, transparent);
	padding-block: clamp(2rem, 5vw, 3.25rem) clamp(2.5rem, 6vw, 4rem);
}

.brandbase-activity-related__title {
	margin: 0 0 clamp(1rem, 2.5vw, 1.5rem);
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(1.5rem, 3vw, 2.125rem);
	line-height: 1.15;
	color: var(--color-blue-800);
}

.brandbase-activity-related__list {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: var(--space-3);
	margin: 0;
	padding: 0;
	list-style: none;
}

.brandbase-activity-related__item {
	margin: 0;
	min-width: 0;
}

.brandbase-activity-related__link {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	min-height: 84px;
	padding: 0.75rem 1rem 0.75rem 0.75rem;
	background: var(--color-white);
	border: 1px solid color-mix(in srgb, var(--color-green-ink) 18%, transparent);
	text-decoration: none;
	color: inherit;
	clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
	transition: border-color var(--duration-fast, 160ms) var(--ease-standard, ease);
}

.brandbase-activity-related__link:hover {
	border-color: var(--color-accent-on-light);
}

.brandbase-activity-related__link:focus-visible {
	outline: 3px solid var(--color-green-ink);
	outline-offset: 2px;
}

.brandbase-activity-related__thumb {
	flex: none;
	width: 96px;
	overflow: hidden;
	background: var(--color-ice-100);
}

.brandbase-activity-related__img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 3 / 2;
	object-fit: cover;
}

.brandbase-activity-related__body {
	display: flex;
	flex-direction: column;
	gap: 0.125rem;
	flex: 1 1 auto;
	min-width: 0;
}

.brandbase-activity-related__index {
	font-family: var(--font-sans);
	font-weight: 700;
	font-size: 0.75rem;
	letter-spacing: 0.1em;
	font-variant-numeric: lining-nums;
	color: var(--color-green-ink);
}

.brandbase-activity-related__name {
	font-family: var(--font-display);
	font-weight: 600;
	font-size: clamp(1.1875rem, 2vw, 1.375rem);
	line-height: 1.2;
	color: var(--color-blue-800);
	overflow-wrap: anywhere;
}

.brandbase-activity-related__arrow {
	flex: none;
	color: var(--color-green-ink);
}

@media (min-width: 900px) {
	.brandbase-activity-related__list {
		grid-template-columns: repeat(3, minmax(0, 1fr));
		gap: var(--space-4);
	}

	.brandbase-activity-related__link {
		flex-direction: column;
		align-items: stretch;
		padding: 0.75rem;
	}

	.brandbase-activity-related__thumb {
		width: 100%;
	}

	.brandbase-activity-related__body {
		padding: 0.25rem 0.25rem 0;
	}

	.brandbase-activity-related__arrow {
		align-self: flex-end;
		margin: -1.5rem 0.25rem 0 0;
	}
}