/* madin-guide — guide.madin.vn. Madin identity, matching e.madin.vn/tram-bom: moss ink on white
   paper, green as the fill colour (rules, numbers, buttons), never as text on white. Headings in
   Madin Sans, body in Open Sans. Tokens from madin-design/design-system/tokens/colors.css.
   Mobile first: drivers read this on a phone. */
@font-face { font-family: "Madin Sans"; src: url("/static/fonts/MadinSans-BVP-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Madin Sans"; src: url("/static/fonts/MadinSans-BVP-SemiBold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Madin Sans"; src: url("/static/fonts/MadinSans-BVP-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
	--madin-green: #00c348;
	--madin-green-deep: #00a53c;
	--madin-moss: #093a2d;
	--madin-moss-2: #0f4d3c;
	--madin-mint: #c9ffc1;
	--madin-mint-50: #eafbe6;
	--line: #dce5df;
	--paper: #ffffff;
	--wash: #f6f8f5;
	--fg2: #3d5a4f;
	--fg3: #6e867c;
	--danger: #da291c;
	--warning: #ed8b00;
	--font-heading: "Madin Sans", system-ui, -apple-system, sans-serif;
	--font-body: "Open Sans", "Madin Sans", system-ui, -apple-system, sans-serif;
	--gutter: max(16px, env(safe-area-inset-left, 0px));
	color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	background: var(--wash);
	color: var(--madin-moss);
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.6;
}
a { color: var(--madin-moss); text-decoration-color: var(--madin-green); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--madin-green); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.25; margin: 0; }
img { max-width: 100%; }
[hidden] { display: none !important; }

/* ---------- cover ---------- */
.cover { background: var(--madin-moss) url("/static/img/van-nuoc-moss.webp") center 30% / cover no-repeat; color: #fff; }
.cover-inner { max-width: 1180px; margin: 0 auto; padding: 20px var(--gutter) 32px; }
.cover-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.cover-logo { height: 28px; width: auto; display: block; }
.cover-tag { font-family: var(--font-heading); font-size: 14px; color: var(--madin-mint); text-decoration: none; padding: 6px 0; }
.cover-tag:hover { color: #fff; }
.account { display: flex; align-items: center; gap: 10px; margin: 0; }
.link-button { font: inherit; font-family: var(--font-heading); font-size: 14px; background: none; border: 0; color: var(--madin-mint); cursor: pointer; padding: 6px 0; text-decoration: underline; text-underline-offset: 3px; }
.link-button:hover { color: #fff; }
.eyebrow { font-family: var(--font-heading); font-weight: 600; font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--madin-green); margin: 36px 0 10px; }
.cover h1 { font-weight: 700; font-size: clamp(30px, 7vw, 56px); text-wrap: balance; }
.cover .lede { font-family: var(--font-heading); font-size: clamp(16px, 2.2vw, 19px); max-width: 44em; margin: 14px 0 0; color: #e3f5e9; }
.cover-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.cover-actions { margin: 24px 0 0; }
.chip { font-family: var(--font-heading); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: rgba(201, 255, 193, 0.14); border: 1px solid rgba(201, 255, 193, 0.35); color: #fff; }

/* ---------- page ---------- */
.page { flex: 1 0 auto; width: 100%; max-width: 1180px; margin: 0 auto; padding: 24px var(--gutter) 40px; }
.button {
	display: inline-block;
	font: inherit;
	font-family: var(--font-heading);
	font-weight: 700;
	font-size: 16px;
	padding: 12px 22px;
	border: 0;
	border-radius: 12px;
	background: var(--madin-green);
	color: var(--madin-moss);
	text-decoration: none;
	cursor: pointer;
}
.button:hover { background: var(--madin-green-deep); }

/* ---------- index ---------- */
.platform + .platform { margin-top: 36px; }
.platform h2 { font-size: 24px; margin-bottom: 4px; }
.group h3 { font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg2); margin: 20px 0 10px; }
.guide-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.guide-card {
	display: grid;
	grid-template-rows: auto 1fr auto;
	gap: 6px;
	padding: 16px 18px;
	border: 1px solid var(--line);
	border-radius: 14px;
	background: var(--paper);
	text-decoration: none;
}
.guide-card:hover { border-color: var(--madin-green); background: var(--madin-mint-50); }
.guide-card b { font-family: var(--font-heading); font-size: 18px; line-height: 1.3; }
.guide-card span { font-size: 14.5px; color: var(--fg2); }
.pill { justify-self: start; font-style: normal; font-family: var(--font-heading); font-weight: 600; font-size: 12.5px; padding: 2px 10px; border-radius: 999px; background: var(--madin-mint); border: 1px solid #a9eba0; }
.index-note { color: var(--fg2); }

/* ---------- guide ---------- */
.guide { display: grid; gap: 20px; }
.step-list { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 12px; font-family: var(--font-heading); font-size: 15px; }
.step-list .back { display: inline-block; font-size: 14px; color: var(--fg2); margin: 2px 6px 8px; }
.step-list ol { margin: 0; padding: 0; list-style: none; counter-reset: step; }
.step-list li { counter-increment: step; }
.step-list li a { display: grid; grid-template-columns: 28px 1fr; gap: 8px; align-items: baseline; padding: 7px 8px; border-radius: 8px; text-decoration: none; }
.step-list li a::before { content: counter(step); font-weight: 700; color: var(--madin-green-deep); text-align: right; }
.step-list li a:hover { background: var(--madin-mint-50); }
.step-list li a.on { background: var(--madin-mint); font-weight: 600; }
.step-list li.done a::before { content: "✓"; }
.steps { min-width: 0; }
.step { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 18px clamp(14px, 3vw, 28px) 22px; }
.step + .step { margin-top: 16px; }
.is-viewer .step + .step { margin-top: 0; }
.step-count { font-family: var(--font-heading); font-weight: 600; font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--madin-green-deep); margin: 0 0 4px; }
.step h2 { font-size: clamp(20px, 4vw, 26px); margin-bottom: 12px; }
.step h2:focus { outline: none; }
.step-text { margin: 0; max-width: 70ch; font-size: 16.5px; }
.shot { margin: 0 0 16px; display: flex; justify-content: center; }
.shot-frame { position: relative; display: inline-block; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background: var(--wash); max-width: min(100%, 393px); }
.shot-frame img { display: block; width: 100%; height: auto; max-height: 72vh; object-fit: contain; }
.tap {
	position: absolute;
	width: 44px;
	height: 44px;
	margin: -22px 0 0 -22px;
	border-radius: 50%;
	border: 3px solid var(--madin-green);
	background: rgba(0, 195, 72, 0.22);
	box-shadow: 0 0 0 6px rgba(0, 195, 72, 0.18);
	animation: tap 1.6s ease-out infinite;
	pointer-events: none;
}
@keyframes tap { 0% { transform: scale(0.8); opacity: 1; } 70% { transform: scale(1.25); opacity: 0.35; } 100% { transform: scale(0.8); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .tap { animation: none; } }
.step-nav {
	position: sticky;
	bottom: 0;
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	gap: 10px;
	margin-top: 12px;
	padding: 10px 0 max(10px, env(safe-area-inset-bottom, 0px));
	background: var(--wash);
}
.step-nav button { font: inherit; font-family: var(--font-heading); font-weight: 700; font-size: 15px; padding: 12px 14px; border-radius: 12px; border: 1.5px solid var(--madin-moss); background: var(--paper); color: var(--madin-moss); cursor: pointer; }
.step-nav [data-next] { background: var(--madin-green); border-color: var(--madin-green); }
.step-nav button:disabled { opacity: 0.4; cursor: default; }
.step-position { font-family: var(--font-heading); font-weight: 600; color: var(--fg2); }
.notes { margin-top: 20px; display: grid; gap: 10px; }
.note { margin: 0; padding: 12px 16px; border-radius: 12px; background: var(--paper); border: 1px solid var(--line); border-left: 5px solid var(--madin-green-deep); }
.note.canh-bao { border-left-color: var(--danger); background: #fdecea; }

@media (min-width: 900px) {
	.guide { grid-template-columns: 260px minmax(0, 1fr); align-items: start; gap: 28px; }
	.step-list { position: sticky; top: 16px; }
	.cover-inner { padding-top: 28px; padding-bottom: 44px; }
	.cover-logo { height: 34px; }
	.eyebrow { margin-top: 56px; }
}

/* ---------- sign-in ---------- */
.signin { max-width: 460px; margin: 0 auto; }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 5px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; }
.tab { text-align: center; font-family: var(--font-heading); font-weight: 600; font-size: 14.5px; padding: 10px 6px; border-radius: 10px; text-decoration: none; color: var(--fg2); }
.tab.on { background: var(--madin-moss); color: #fff; }
.signin-form { margin-top: 14px; display: grid; gap: 14px; background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.signin-form label { display: grid; gap: 6px; font-family: var(--font-heading); font-weight: 600; font-size: 14.5px; }
.signin-form input[type="text"], .signin-form input[type="password"] { font: inherit; font-size: 16px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; color: var(--madin-moss); background: #fff; }
.signin-form input:focus { border-color: var(--madin-green); outline: none; }
.hint { margin: 0; color: var(--fg2); font-size: 14.5px; }
.hint.small { font-size: 13.5px; }
.form-error { margin: 0; padding: 10px 14px; border-radius: 10px; background: #fdecea; color: #7a1c12; border: 1px solid #f4c3bd; font-size: 14.5px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); background: var(--paper); }
.foot-inner { max-width: 1180px; margin: 0 auto; padding: 24px var(--gutter) 32px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; font-family: var(--font-heading); font-size: 13.5px; color: var(--fg2); }
.foot img { height: 24px; width: auto; display: block; }
.foot .tagline { color: var(--madin-moss); font-weight: 600; }
.link-button.dark { color: var(--fg2); }

/* ---------- search ---------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.search { display: flex; gap: 8px; margin: 0 0 24px; max-width: 640px; }
.search input { flex: 1; min-width: 0; font: inherit; font-size: 16px; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: #fff; color: var(--madin-moss); }
.search input:focus { border-color: var(--madin-green); outline: none; }
.results { display: grid; gap: 12px; max-width: 760px; }
.foot .support a { color: var(--madin-moss); font-weight: 600; }

/* ---------- print: every step, with its screenshot, nothing interactive ---------- */
@media print {
	body { background: #fff; }
	.cover { background: #fff; color: var(--madin-moss); }
	.cover .lede, .eyebrow { color: var(--madin-moss); }
	.cover-logo, .account, .cover-tag, .chip, .step-list, .step-nav, .search, .cover-actions, .foot form { display: none !important; }
	.guide { display: block; }
	.is-viewer .step[hidden], .step[hidden] { display: block !important; }
	.step { break-inside: avoid; border: 0; border-top: 1px solid var(--line); border-radius: 0; padding: 12px 0; }
	.step + .step { margin-top: 0; }
	.shot-frame { max-width: 60mm; border-radius: 8px; }
	.shot-frame img { max-height: none; }
	.tap { animation: none; box-shadow: none; }
	a { text-decoration: none; }
}