/* =========================================================
   ABOUT 2D TỘC SHOP — scope .about-2dtoc-page
   ========================================================= */

.about-2dtoc-page {
	--a-navy: #102a56;
	--a-sky: #4db8ff;
	--a-soft: #eaf7ff;
	--a-white: #fff;
	--a-gray: #f6f8fb;
	--a-pink: #ff7bbf;
	--a-purple: #8b5cf6;
	--a-text: #102a56;
	--a-muted: #5b6b86;
	--a-radius: 24px;
	--a-shadow: 0 12px 30px rgba(16, 42, 86, 0.08);
	--a-container: 1180px;
	font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
	color: var(--a-text);
	line-height: 1.7;
	/* Chừa khoảng đệm để hero không đè lên breadcrumb (bù lại lề âm của breadcrumb) */
	padding-top: 38px;
}
.about-2dtoc-page * { box-sizing: border-box; }
.about-2dtoc-page p { margin: 0 0 14px; color: var(--a-muted); }
.about-2dtoc-page p:last-child { margin-bottom: 0; }

/* ---------- Container & Section ---------- */
.about-2dtoc__container {
	max-width: var(--a-container);
	margin: 0 auto;
	padding: 0 20px;
}
.about-2dtoc__section { padding: 64px 0; position: relative; }

/* Chặn cuộn ngang (file này chỉ tải ở trang Giới thiệu nên an toàn) */
body { overflow-x: clip; }

/* Nền trải full chiều ngang */
.a-fill-hero,
.a-fill-soft,
.a-fill-community {
	width: 100vw;
	margin-left: calc(50% - 50vw);
	margin-right: calc(50% - 50vw);
}
.a-fill-hero { background: linear-gradient(180deg, var(--a-soft) 0%, var(--a-white) 100%); }
.a-fill-soft { background: var(--a-gray); }
.a-fill-community {
	background: linear-gradient(120deg, var(--a-navy) 0%, #2a2a72 55%, #5b3aa8 100%);
	color: #fff;
}
.a-fill-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(77, 184, 255, 0.18) 1.5px, transparent 1.5px);
	background-size: 22px 22px;
	opacity: 0.6;
	pointer-events: none;
}

/* ---------- Headings ---------- */
.a-hero__title {
	font-size: clamp(28px, 4vw, 44px);
	line-height: 1.2;
	font-weight: 800;
	margin: 0 0 16px;
	color: var(--a-navy);
}
.about-2dtoc__h2 {
	font-size: clamp(24px, 3vw, 32px);
	line-height: 1.25;
	font-weight: 800;
	margin: 0 0 12px;
	color: var(--a-navy);
}
.a-on-dark, .a-fill-community p { color: #fff; }
.a-fill-community p { color: rgba(255, 255, 255, 0.85); }
.a-card__title { font-size: 18px; font-weight: 700; margin: 0 0 8px; color: var(--a-navy); }
.a-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.a-head__sub { font-size: 16px; }

/* ---------- Buttons ---------- */
.about-2dtoc__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 13px 26px;
	border-radius: 999px;
	font-weight: 700;
	font-size: 15px;
	text-decoration: none;
	border: 2px solid transparent;
	cursor: pointer;
	transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
}
.about-2dtoc__btn:focus-visible { outline: 3px solid var(--a-purple); outline-offset: 2px; }
.about-2dtoc__btn--primary {
	background: linear-gradient(135deg, var(--a-sky), var(--a-purple));
	color: #fff;
	box-shadow: 0 8px 20px rgba(77, 184, 255, 0.3);
}
.about-2dtoc__btn--primary:hover { background: linear-gradient(135deg, var(--a-purple), var(--a-pink)); transform: translateY(-2px); }
.about-2dtoc__btn--ghost { background: #fff; color: var(--a-navy); border-color: var(--a-sky); }
.about-2dtoc__btn--ghost:hover { background: var(--a-soft); transform: translateY(-2px); }
.about-2dtoc__btn--light { background: #fff; color: var(--a-navy); }
.about-2dtoc__btn--light:hover { background: var(--a-soft); transform: translateY(-2px); }
.about-2dtoc__btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.about-2dtoc__btn--ghost-light:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

/* ---------- Media placeholder (ảnh chưa có -> gradient + nhãn) ---------- */
.about-2dtoc__media {
	position: relative;
	border-radius: var(--a-radius);
	overflow: hidden;
	background: linear-gradient(135deg, #dcefff, #ece6ff);
	box-shadow: var(--a-shadow);
}
.about-2dtoc__media::after {
	content: attr(data-label);
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 16px;
	font-size: 13px;
	color: rgba(16, 42, 86, 0.45);
	font-weight: 600;
}
.about-2dtoc__media img {
	position: relative;
	z-index: 1;
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.a-ratio-43 { aspect-ratio: 4 / 3; }
.a-ratio-45 { aspect-ratio: 4 / 5; }

/* ---------- Cards ---------- */
.a-card {
	background: #fff;
	border: 1px solid #eef2f8;
	border-radius: var(--a-radius);
	box-shadow: var(--a-shadow);
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.a-card:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(16, 42, 86, 0.12); }
.a-card__desc { font-size: 14.5px; }

/* ---------- S1 Hero ---------- */
.a-hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
.a-hero__sub { font-size: 17px; margin-bottom: 24px; max-width: 560px; }
.a-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.a-hero__badges { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.a-hero__badges li {
	background: #fff;
	border: 1px solid #d6ecff;
	color: var(--a-navy);
	font-size: 13px;
	font-weight: 600;
	padding: 7px 14px;
	border-radius: 999px;
	box-shadow: 0 4px 10px rgba(16, 42, 86, 0.05);
}

/* ---------- S2 Trust ---------- */
.a-trust__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.a-trust__card {
	background: #fff;
	border-radius: var(--a-radius);
	box-shadow: var(--a-shadow);
	padding: 26px 20px;
	text-align: center;
	border: 1px solid #eef2f8;
}
.a-trust__num { display: block; font-size: 30px; font-weight: 800; color: var(--a-sky); margin-bottom: 6px; }
.a-trust__cap { font-size: 14px; color: var(--a-muted); }
.a-trust__note { text-align: center; font-size: 13px; color: var(--a-muted); margin-top: 38px; }

/* ---------- S3 Story ---------- */
.a-story__grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
.a-quote {
	margin: 22px 0 0;
	padding: 18px 22px;
	border-left: 4px solid var(--a-sky);
	background: #fff;
	border-radius: 0 16px 16px 0;
	font-size: 17px;
	font-weight: 600;
	color: var(--a-navy);
	box-shadow: var(--a-shadow);
}

/* ---------- S4 Categories ---------- */
.a-cats__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.a-cat { overflow: hidden; display: flex; flex-direction: column; }
.a-cat .about-2dtoc__media { border-radius: 0; box-shadow: none; }
.a-cat__body { padding: 20px; }
.a-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--a-sky); text-decoration: none; font-size: 14.5px; }
.a-link:hover { color: var(--a-purple); }
.a-link span { transition: transform 0.2s; }
.a-link:hover span { transform: translateX(4px); }

/* ---------- S5 Why ---------- */
.a-why__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: start; }
.a-why__list { display: grid; gap: 16px; }
.a-why__item { display: flex; gap: 16px; padding: 20px 22px; align-items: flex-start; }
.a-why__no { font-size: 22px; font-weight: 800; color: var(--a-sky); flex-shrink: 0; line-height: 1.3; }

/* ---------- S6 Steps ---------- */
.a-steps__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.a-step { background: #fff; border-radius: var(--a-radius); box-shadow: var(--a-shadow); padding: 28px 22px; border: 1px solid #eef2f8; position: relative; }
.a-step__no { display: block; font-size: 34px; font-weight: 800; color: rgba(77, 184, 255, 0.5); margin-bottom: 8px; }
.a-steps__cta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 36px; }

/* ---------- S7 Promise ---------- */
.a-promise__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.a-promise__card { padding: 30px 26px; }

/* ---------- S8 Community ---------- */
.a-community__grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.a-community .about-2dtoc__btn { margin-top: 8px; }

/* ---------- S9 FAQ ---------- */
.a-faq__inner { max-width: 820px; }
.a-faq__list { display: grid; gap: 12px; }
.a-faq__item { background: #fff; border: 1px solid #eef2f8; border-radius: 16px; box-shadow: var(--a-shadow); overflow: hidden; }
.a-faq__q { margin: 0; }
.a-faq__btn {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	padding: 18px 22px;
	background: none;
	border: 0;
	cursor: pointer;
	text-align: left;
	font-size: 16px;
	font-weight: 700;
	color: var(--a-navy);
	font-family: inherit;
}
.a-faq__btn:focus-visible { outline: 3px solid var(--a-purple); outline-offset: -3px; border-radius: 16px; }
.a-faq__icon { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.a-faq__icon::before, .a-faq__icon::after { content: ""; position: absolute; background: var(--a-sky); border-radius: 2px; transition: transform 0.25s ease; }
.a-faq__icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.a-faq__icon::after { top: 0; left: 8px; width: 2px; height: 18px; }
.a-faq__btn[aria-expanded="true"] .a-faq__icon::after { transform: rotate(90deg); opacity: 0; }
.a-faq__a { padding: 0 22px 18px; }
.a-faq__a p { color: var(--a-muted); }

/* ---------- S10 Final CTA ---------- */
.a-final__card {
	background: linear-gradient(120deg, var(--a-navy), var(--a-purple));
	border-radius: 28px;
	padding: 56px 40px;
	text-align: center;
	box-shadow: 0 20px 50px rgba(16, 42, 86, 0.25);
}
.a-final__card p { color: rgba(255, 255, 255, 0.88); max-width: 560px; margin: 0 auto 24px; font-size: 16px; }
.a-final__cta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- Reveal on scroll ---------- */
.a-reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.a-reveal.is-in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
	.about-2dtoc__section { padding: 48px 0; }
	.a-hero__grid,
	.a-story__grid,
	.a-why__grid,
	.a-community__grid { grid-template-columns: 1fr; gap: 30px; }
	.a-hero__media,
	.a-story__media,
	.a-community__media { order: 2; }
	.a-trust__grid { grid-template-columns: repeat(2, 1fr); }
	.a-cats__grid,
	.a-promise__grid { grid-template-columns: repeat(2, 1fr); }
	.a-steps__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
	.about-2dtoc__section { padding: 40px 0; }
	.a-trust__grid,
	.a-cats__grid,
	.a-promise__grid,
	.a-steps__grid { grid-template-columns: 1fr; }
	.a-hero__cta,
	.a-steps__cta,
	.a-final__cta { flex-direction: column; }
	.about-2dtoc__btn { width: 100%; }
	.a-final__card { padding: 40px 22px; }
	.a-quote { font-size: 16px; }
}

/* ---------- Tôn trọng prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
	.a-reveal { opacity: 1; transform: none; transition: none; }
	.about-2dtoc__btn:hover,
	.a-card:hover { transform: none; }
	.a-faq__icon::before, .a-faq__icon::after { transition: none; }
}