/* Hallmark · shape: Catalogue · genre: atmospheric · theme: brand · redesign: full · job: download (visit, a shop's shelves)
 * paper: oklch(23.9% 0.058 257) · accent: oklch(76.8% 0.144 232) · display: Be Vietnam Pro 800 · body: Be Vietnam Pro 400 · hero: Counter (the newest workflow with its download) · nav: slab, the site's own menu · footer: mast · signature: the newest workflow's real cover beside a one-click download
 * axes: dark/grotesk-heavy/cool · posture: Restrained · contrast: pass · fold: pass · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H4 E4 S4 R4 V4 · weakest: S, a shelf of two could be any shop; the hero leads with the newest workflow's real cover and its download, the steps name n8n's own menu */
/* Hallmark · waive 29 · Lucian #228 cursor light on the workflow cards, ink-tinted, pointer devices only · the same card light both VietlinhAI course pages use */
/* Hallmark · waive 49b · the newest workflow's full name links to its page at 320px · a real product title that cannot shorten */
/* Hallmark · dismissed 3 · the three-up cards hold workflow covers and download buttons, no icon tiles */
/* Hallmark · answered F20 · three across by the owner's choice; with two workflows the row ends one short until the next is published */
/* Hallmark · waive 47c · Lucian #226 64px grid behind the hero, beams run 5s after load and again while the pointer moves over the hero · the same grid both VietlinhAI course pages open on */
/* Hallmark · waive 38iii · Lucian #237 hand-drawn underline under the hero head's last line, once, in the hero · the same headline motion both VietlinhAI course pages open with */
@import url("./tokens.css");
@import url("./base.css");

/* ---------- nav: the site's own menu, slab ---------- */
.nav { position: sticky; top: 0; z-index: var(--z-sticky-nav); background: color-mix(in oklab, var(--color-paper) 90%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: var(--rule-hair) solid var(--color-rule); }
.nav__in { display: flex; align-items: center; gap: var(--space-lg); min-height: 68px; }
.wordmark { font-size: var(--text-lg); font-weight: 800; letter-spacing: -0.01em; color: var(--color-ink); text-decoration: none; white-space: nowrap; }
.wordmark span { color: var(--color-accent); }
.nav__menu { display: flex; align-items: center; gap: var(--space-2xs); margin: 0 0 0 auto; padding: 0; list-style: none; }
.nav__menu > li { position: relative; }
.nav__link { display: inline-flex; align-items: center; gap: var(--space-xs); min-height: 44px; padding: 0 var(--space-sm); border: 0; border-radius: var(--radius-inner); background: none; color: var(--color-ink-2); font: 600 var(--text-sm)/1 var(--font-body); text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out); }
.nav__link:hover, .nav__link[aria-expanded="true"] { background: var(--color-paper-2); color: var(--color-ink); }
.nav__link[aria-current="page"] { color: var(--color-ink); box-shadow: inset 0 -2px 0 var(--color-accent); border-radius: 0; }
.nav__link svg { width: 14px; height: 14px; transition: transform var(--dur-short) var(--ease-out); }
.nav__link[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav__link:active { background: var(--color-paper-3); }
.dd { position: absolute; top: calc(100% + var(--space-xs)); left: 0; z-index: var(--z-dropdown); width: 320px; padding: var(--space-xs); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-card); background: var(--color-paper-2); display: grid; gap: var(--space-2xs); }
.js .dd { opacity: 0; transform: translateY(-4px); visibility: hidden; transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out), visibility 0s linear var(--dur-short); }
.js .dd.is-open { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
.dd a { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-sm); align-items: start; padding: var(--space-sm); border-radius: var(--radius-inner); color: var(--color-ink); text-decoration: none; transition: background-color var(--dur-short) var(--ease-out); }
.dd a:hover { background: var(--color-paper-3); }
.dd a:active { background: var(--color-rule); }
.dd__n { display: grid; place-items: center; width: 28px; height: 28px; border-radius: var(--radius-pill); background: var(--color-paper-3); font-size: var(--text-sm); font-weight: 600; }
.dd b { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-xs); font-weight: 600; }
.dd small { display: block; margin-top: var(--space-3xs); color: var(--color-muted); font-size: var(--text-sm); }
.tag { padding: var(--space-3xs) var(--space-xs); border-radius: var(--radius-pill); background: var(--color-free); color: var(--color-accent-ink); font-size: var(--text-xs); font-weight: 600; }
.tag--pro { background: var(--color-tag-pro); }
.nav__cta { display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--space-md); border: var(--rule-hair) solid var(--color-accent); border-radius: var(--radius-pill); color: var(--color-accent); font: 600 var(--text-sm)/1 var(--font-body); text-decoration: none; white-space: nowrap; transition: background-color var(--dur-short) var(--ease-out); }
.nav__cta:hover { background: color-mix(in oklab, var(--color-accent) 12%, transparent); }
.nav__cta:active { background: color-mix(in oklab, var(--color-accent) 20%, transparent); }
.nav__burger { display: none; place-items: center; width: 44px; height: 44px; margin-left: auto; border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-inner); background: none; color: var(--color-ink); cursor: pointer; }
.nav__burger:hover { background: var(--color-paper-2); }
.nav__burger:active { background: var(--color-paper-3); }
.nav__burger svg { width: 20px; height: 20px; }
.panel { border-top: var(--rule-hair) solid var(--color-rule); padding-block: var(--space-md) var(--space-lg); }
.panel ul { display: grid; gap: var(--space-2xs); margin: 0; padding: 0; list-style: none; }
.panel > .container > ul > li > a { display: flex; align-items: center; min-height: 48px; color: var(--color-ink); font-weight: 600; text-decoration: none; }
.panel__h { display: block; margin-top: var(--space-xs); color: var(--color-muted); font-size: var(--text-sm); }
.panel .dd { position: static; width: auto; padding: 0; border: 0; background: none; }
.js .panel .dd { opacity: 1; transform: none; visibility: visible; }
.panel .nav__cta { margin-top: var(--space-md); }

/* ---------- hero: Counter ---------- */
.hero { position: relative; overflow: hidden; padding-block: var(--space-2xl); min-height: calc(100dvh - 68px); display: grid; align-items: center; }
/* Lucian #226: lưới 64px sau đầu trang, sáng quanh con trỏ, tia sáng chạy dọc đường lưới (vẽ bằng canvas). */
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero__grid-a, .hero__grid-b { position: absolute; inset: 0; background-image: linear-gradient(color-mix(in oklab, var(--color-ink) 7%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in oklab, var(--color-ink) 7%, transparent) 1px, transparent 1px); background-size: 64px 64px; background-position: -1px -1px; }
.hero__grid-a { -webkit-mask-image: radial-gradient(80% 75% at 60% 45%, var(--color-paper), transparent); mask-image: radial-gradient(80% 75% at 60% 45%, var(--color-paper), transparent); }
.hero__grid-b { background-image: linear-gradient(color-mix(in oklab, var(--color-ink) 40%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in oklab, var(--color-ink) 40%, transparent) 1px, transparent 1px); -webkit-mask-image: radial-gradient(140px 140px at var(--mx, -400px) var(--my, -400px), var(--color-paper), transparent); mask-image: radial-gradient(140px 140px at var(--mx, -400px) var(--my, -400px), var(--color-paper), transparent); }
.hero__beams { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero > .container { position: relative; z-index: 1; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-3xl); align-items: center; }
.hero__text { display: grid; gap: var(--space-lg); justify-items: start; }
.hero h1 { position: relative; max-width: none; font-size: clamp(2.75rem, 3.6vw + 0.75rem, 4.75rem); line-height: 1.04; }
.hero .lead { color: var(--color-ink-2); max-width: 34ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-xs); }

/* Lucian #237: dòng tiêu đề trượt lên khỏi mặt nạ, xong vẽ gạch dưới dòng cuối. Chỉ chạy khi có JS. */
.lx-line { display: block; white-space: nowrap; overflow: hidden; padding: 0.14em 0 0.08em; margin: -0.14em 0 -0.08em; }
.js .lx-split .lx-in { display: inline-block; transform: translateY(108%) rotate(4deg); transform-origin: 0 100%; }
.js .lx-split.is-in .lx-in { transform: none; transition: transform 0.9s cubic-bezier(0.2, 0.9, 0.2, 1) calc(var(--i, 0) * 95ms); }
.lx-u { position: absolute; left: -4px; bottom: -0.18em; height: 0.3em; overflow: visible; fill: none; stroke: var(--color-accent); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 240; stroke-dashoffset: 240; }
.lx-split.is-drawn .lx-u { stroke-dashoffset: 0; transition: stroke-dashoffset 0.7s cubic-bezier(0.6, 0, 0.2, 1); }
html:not(.js) .lx-u { stroke-dashoffset: 0; }

.offer { margin: 0; display: grid; gap: var(--space-md); }
.offer__img { aspect-ratio: 4 / 3; max-height: 540px; border-radius: var(--radius-card); }
.offer__img > img { border-radius: var(--radius-card); outline: var(--rule-hair) solid var(--color-rule); outline-offset: -1px; }
.offer__row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-md); }
.offer__name { font-size: var(--text-title); font-weight: 800; line-height: 1.2; letter-spacing: -0.01em; max-width: 30ch; }
.offer__name a { text-decoration: none; }
.offer__name a:hover { text-decoration: underline; }
.offer__acts { display: flex; align-items: center; gap: var(--space-md); }

/* ---------- buttons: one filled primary on the page ---------- */
.btn { display: inline-flex; align-items: center; gap: var(--space-xs); min-height: 48px; padding: 0 var(--space-lg); border: var(--rule-hair) solid var(--color-accent); border-radius: var(--radius-pill); background: var(--color-accent); color: var(--color-accent-ink); font: 600 var(--text-md)/1 var(--font-body); white-space: nowrap; text-decoration: none; cursor: pointer; transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out); }
.btn:hover { background: var(--color-focus); }
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn:disabled, .btn[aria-disabled="true"], .nav__link:disabled, .nav__burger:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn--quiet { background: transparent; color: var(--color-ink); border-color: var(--color-rule); }
.btn--quiet:hover { background: var(--color-paper-2); }
.link { color: var(--color-ink-2); font-weight: 600; text-decoration: underline; text-decoration-color: var(--color-rule); white-space: nowrap; transition: color var(--dur-short) var(--ease-out), text-decoration-color var(--dur-short) var(--ease-out); }
.link:hover { color: var(--color-ink); text-decoration-color: var(--color-accent); }
.link:active { color: var(--color-accent); }

/* ---------- the shelf ---------- */
.shelf { padding-block: var(--section-gap-s) var(--section-gap); background: var(--color-deep); border-top: var(--rule-hair) solid var(--color-rule); }
.head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gap-columns); align-items: end; margin-bottom: var(--space-2xl); }
.head .lead { color: var(--color-ink-2); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); margin: 0; padding: 0; list-style: none; }
/* Lucian #228: viền và lòng thẻ sáng theo con trỏ, ánh sáng lan sang thẻ bên cạnh. Ánh màu chữ, không dùng cyan. */
.card { position: relative; border-radius: var(--radius-card); padding: 1.5px; background: radial-gradient(160px circle at var(--cx, -500px) var(--cy, -500px), color-mix(in oklab, var(--color-ink) calc(var(--o, 0) * 55%), transparent), transparent 70%), var(--color-rule); }
.card__in { height: 100%; display: grid; grid-template-rows: auto 1fr; border-radius: calc(var(--radius-card) - 1.5px); background: radial-gradient(220px circle at var(--cx, -500px) var(--cy, -500px), color-mix(in oklab, var(--color-ink) calc(var(--o, 0) * 7%), transparent), transparent 60%), var(--color-paper-2); overflow: hidden; }
.card__img { aspect-ratio: 4 / 3; }
.card__body { display: grid; grid-template-rows: auto auto 1fr; gap: var(--space-xs); padding: var(--space-lg) var(--space-lg) var(--space-md); }
.card h3 { font-size: var(--text-xl); }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; text-decoration-color: var(--color-accent); }
.card__desc { align-self: start; color: var(--color-ink-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card__acts { align-self: end; display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md); margin-top: var(--space-xs); padding-top: var(--space-md); border-top: var(--rule-hair) solid var(--color-rule); }
.card__acts .btn { min-height: 44px; padding: 0 var(--space-md); font-size: var(--text-sm); }
.card__acts .btn svg { width: 16px; height: 16px; }
.card__acts .link { font-size: var(--text-sm); }
.price-free { color: var(--color-free); font-weight: 600; font-size: var(--text-sm); }

/* ---------- three steps ---------- */
.steps { padding-block: var(--section-gap); }
.steps h2 { margin-bottom: var(--space-2xl); }
.steps ol { counter-reset: step; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-columns); margin: 0; padding: 0; list-style: none; }
.steps li { counter-increment: step; display: grid; gap: var(--space-sm); align-content: start; padding-top: var(--space-lg); border-top: var(--rule-hair) solid var(--color-rule); }
.steps li::before { content: counter(step); font-size: var(--text-display-s); font-weight: 800; line-height: 1; color: var(--color-muted); font-variant-numeric: tabular-nums; }
.steps p { color: var(--color-ink-2); max-width: 36ch; }
.steps code { font-family: inherit; font-weight: 600; color: var(--color-ink); }

/* ---------- the course band ---------- */
.band { padding-block: var(--section-gap-s); background: var(--color-paper-3); color: var(--color-ink); }
.band__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gap-columns); align-items: center; }
.band h2 { max-width: 16ch; }
.band .lead { margin-top: var(--space-md); color: var(--color-ink); }
.band__offer { display: grid; gap: var(--space-md); justify-items: start; padding-left: var(--space-xl); border-left: var(--rule-hair) solid color-mix(in oklab, var(--color-ink) 30%, transparent); }
.band__price { font-size: var(--text-display-s); font-weight: 800; line-height: 1; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.band .btn--quiet { border-color: var(--color-ink); }
.band .btn--quiet:hover { background: color-mix(in oklab, var(--color-ink) 10%, transparent); }

/* ---------- footer: mast ---------- */
.foot { padding-block: var(--space-3xl) var(--space-xl); background: var(--color-deep); border-top: var(--rule-hair) solid var(--color-rule); }
.foot__mast { display: grid; gap: var(--space-xs); padding-bottom: var(--space-2xl); border-bottom: var(--rule-hair) solid var(--color-rule); }
.foot__mark { font-size: var(--text-section); font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.foot__mark span { color: var(--color-accent); }
.foot__line { color: var(--color-ink-2); font-size: var(--text-lead); }
.foot__cols { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr); gap: var(--gap-columns); padding-block: var(--space-2xl); }
.foot h2 { font-size: var(--text-sm); font-weight: 600; letter-spacing: 0; color: var(--color-muted); margin-bottom: var(--space-md); }
.foot ul { display: grid; gap: var(--space-xs); margin: 0; padding: 0; list-style: none; }
.foot a { color: var(--color-ink); text-decoration: none; }
.foot a:hover { text-decoration: underline; text-decoration-color: var(--color-accent); }
.foot__zalo { display: flex; gap: var(--space-md); align-items: center; margin-top: var(--space-md); }
.foot__zalo img { width: 88px; height: 88px; border-radius: var(--radius-inner); flex-shrink: 0; }
.foot__zalo p { color: var(--color-ink-2); font-size: var(--text-sm); max-width: 28ch; }
.foot__legal { color: var(--color-muted); font-size: var(--text-sm); }

/* ---------- smaller screens ---------- */
@media (max-width: 60rem) {
  .nav__menu, .nav__in > .nav__cta { display: none; }
  .nav__burger { display: grid; }
  .hero { min-height: 0; }
  .hero__grid, .head, .band__grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps ol { grid-template-columns: minmax(0, 1fr); }
  .band__offer { padding-left: 0; padding-top: var(--space-lg); border-left: 0; border-top: var(--rule-hair) solid color-mix(in oklab, var(--color-ink) 30%, transparent); }
  .foot__cols { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (max-width: 40rem) {
  .cards { grid-template-columns: minmax(0, 1fr); }
  .card__body { padding: var(--space-lg); }
  .foot__cols { grid-template-columns: minmax(0, 1fr); }
  .offer__row { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  .js .lx-split .lx-in { transform: none; }
  .js .dd { transform: none; }
  .btn, .link, .nav__link, .nav__cta { transition: none; }
}

/* Thanh quản trị WordPress (chỉ khi đăng nhập) đè lên menu dính: đẩy menu xuống dưới nó. */
.admin-bar .nav { top: 32px; }
@media (max-width: 782px) { .admin-bar .nav { top: 46px; } }