/**
 * lhl-editorial - Landing (trang Sản phẩm, Khoá học, Ebook)
 * Dùng token từ tokens.css nên tự theo dark mode.
 */
.lp { padding: 24px 0 72px; }
.lp section { margin-top: 72px; }
.lp h1, .lp h2, .lp h3 { font-family: var(--font-serif); color: var(--text-primary); letter-spacing: -0.01em; }
.lp h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); line-height: 1.2; margin: 0 0 12px; }
.lp .lp-lead-text { color: var(--text-secondary); font-size: 1.1rem; line-height: 1.7; max-width: 62ch; }
.lp-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--brand-strong); background: var(--brand-soft); padding: 6px 14px; border-radius: var(--radius-full); }
[data-theme="dark"] .lp-eyebrow { color: var(--brand); background: rgba(217,119,6,.14); }

/* Hero */
.lp-hero { display: grid; gap: 40px; align-items: center; margin-top: 24px !important; }
@media (min-width: 900px) { .lp-hero { grid-template-columns: 1.15fr .85fr; gap: 56px; } }
.lp-hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.1; margin: 18px 0 18px; }
.lp-hero__img { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-lg); background: var(--surface-cream); }
.lp-hero__img img { display: block; width: 100%; height: auto; }
.lp-cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 28px; }
.lp-price { font-family: var(--font-serif); font-variant-numeric: lining-nums; font-size: 2rem; font-weight: 700; color: var(--brand-strong); }
.lp-price small { display: block; font: 600 .75rem var(--font-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); }
.lp-facts { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 26px 0 0; padding: 0; list-style: none; color: var(--text-secondary); font-size: .95rem; }
.lp-facts li::before { content: "✓"; color: var(--success); font-weight: 700; margin-right: 8px; }

/* Thông báo đặt trước */
.lp-note-box { border: 1px solid var(--border); background: var(--surface-1); border-radius: var(--radius-lg); padding: 18px 22px; color: var(--text-secondary); line-height: 1.7; }
.lp-note-box strong { color: var(--text-primary); }

/* Lưới 4 gói */
.lp-tiers { display: grid; gap: 22px; grid-template-columns: 1fr; margin-top: 28px; }
@media (min-width: 700px) { .lp-tiers { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .lp-tiers { grid-template-columns: repeat(4, 1fr); } }
.lp-tier { position: relative; display: flex; flex-direction: column; background: var(--surface-0); border: 1px solid var(--border); border-radius: var(--radius-xl); overflow: hidden; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.lp-tier:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand); }
.lp-tier--hot { border-color: var(--brand); box-shadow: var(--shadow-md); }
.lp-tier__img { display: block; background: var(--surface-cream); }
.lp-tier__img img { display: block; width: 100%; height: auto; }
.lp-tier__body { display: flex; flex-direction: column; flex: 1; padding: 20px 22px 24px; }
.lp-tag { align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 4px 10px; border-radius: var(--radius-full); background: var(--surface-2); color: var(--text-secondary); margin-bottom: 12px; }
.lp-tag--hot { background: var(--gradient-brand); color: #fff; }
.lp-tier h3 { font-size: 1.25rem; margin: 0 0 8px; line-height: 1.3; }
.lp-tier p { color: var(--text-secondary); line-height: 1.6; font-size: .95rem; margin: 0 0 16px; }
.lp-tier__price { font-family: var(--font-serif); font-variant-numeric: lining-nums; font-size: 1.6rem; font-weight: 700; color: var(--brand-strong); margin-top: auto; padding-bottom: 14px; }
.lp-tier .c-btn { justify-content: center; }
.lp-hub-note { margin-top: 18px; color: var(--text-muted); font-size: .9rem; }

/* Kết quả */
.lp-outcomes { display: grid; gap: 16px; margin: 24px 0 0; padding: 0; list-style: none; grid-template-columns: 1fr; }
@media (min-width: 760px) { .lp-outcomes { grid-template-columns: repeat(2, 1fr); } }
.lp-outcomes li { background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px 20px 18px 52px; position: relative; line-height: 1.6; color: var(--text-secondary); }
.lp-outcomes li::before { content: "✓"; position: absolute; left: 20px; top: 17px; width: 22px; height: 22px; border-radius: 50%; background: var(--brand-soft); color: var(--brand-strong); font-weight: 700; font-size: .8rem; display: grid; place-items: center; }
[data-theme="dark"] .lp-outcomes li::before { background: rgba(217,119,6,.18); color: var(--brand); }

/* Giáo trình (details) */
.lp-chap { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface-0); margin-top: 14px; overflow: hidden; }
.lp-chap summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 18px 22px; font-weight: 600; color: var(--text-primary); }
.lp-chap summary::-webkit-details-marker { display: none; }
.lp-chap summary::after { content: "+"; font-size: 1.4rem; color: var(--brand-strong); transition: transform var(--dur) var(--ease); }
.lp-chap[open] summary::after { transform: rotate(45deg); }
.lp-chap summary small { display: block; font-weight: 400; color: var(--text-muted); margin-top: 2px; }
.lp-chap ol { margin: 0; padding: 0 22px 18px 44px; color: var(--text-secondary); line-height: 1.9; }

/* Hai cột phù hợp */
.lp-fit { display: grid; gap: 18px; grid-template-columns: 1fr; margin-top: 24px; }
@media (min-width: 760px) { .lp-fit { grid-template-columns: 1fr 1fr; } }
.lp-fit > div { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px 24px; background: var(--surface-0); }
.lp-fit h3 { font-size: 1.1rem; margin: 0 0 10px; }
.lp-fit ul { margin: 0; padding-left: 20px; color: var(--text-secondary); line-height: 1.8; }

/* Người dạy */
.lp-who { border: 1px solid var(--border); border-radius: var(--radius-xl); background: var(--surface-cream); padding: 28px; color: var(--text-secondary); line-height: 1.8; }
[data-theme="dark"] .lp-who { background: var(--surface-1); }
.lp-who strong { color: var(--text-primary); }

/* FAQ */
.lp-faq details { border-bottom: 1px solid var(--border); padding: 16px 0; }
.lp-faq summary { cursor: pointer; font-weight: 600; color: var(--text-primary); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.lp-faq summary::-webkit-details-marker { display: none; }
.lp-faq summary::after { content: "+"; color: var(--brand-strong); font-size: 1.3rem; }
.lp-faq details[open] summary::after { content: "−"; }
.lp-faq p { margin: 12px 0 0; color: var(--text-secondary); line-height: 1.75; }

/* Form email */
.lp-lead { display: grid; gap: 12px; max-width: 460px; margin-top: 26px; position: relative; }
.lp-lead input[type="text"], .lp-lead input[type="email"] { width: 100%; padding: 14px 18px; border-radius: var(--radius-full); border: 1px solid var(--border); background: var(--surface-0); color: var(--text-primary); font: inherit; }
.lp-lead input:focus { outline: 2px solid var(--ring); outline-offset: 2px; }
.lp-lead .c-btn { justify-content: center; border: 0; cursor: pointer; }
.lp-note { margin: 4px 0 0; font-size: .82rem; color: var(--text-muted); line-height: 1.6; }
.lp-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.lp-lead-ok, .lp-lead-err { margin-top: 26px; max-width: 460px; padding: 16px 20px; border-radius: var(--radius-lg); line-height: 1.7; }
.lp-lead-ok { background: rgba(21,128,61,.1); border: 1px solid var(--success); color: var(--text-primary); }
.lp-lead-err { background: rgba(190,18,60,.08); border: 1px solid var(--danger); color: var(--text-primary); }

/* Thanh mua cố định (mobile) */
.lp-sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: flex; gap: 14px; align-items: center; justify-content: space-between; padding: 12px var(--container-pad); background: color-mix(in srgb, var(--surface-0) 92%, transparent); backdrop-filter: blur(12px); border-top: 1px solid var(--border); }
.lp-sticky .lp-price { font-size: 1.3rem; }
@media (min-width: 900px) { .lp-sticky { display: none; } }
@media (max-width: 899px) { .lp { padding-bottom: 110px; } }

/* Giá gạch + ghi chú tiết kiệm */
.lp-price del, .lp-tier__price del { font-family: var(--font-sans); font-size: .55em; font-weight: 400; color: var(--text-faint); margin-left: 10px; text-decoration-thickness: 1.5px; }
.lp-save { display: inline-block; margin-top: 6px; font: 600 .8rem var(--font-sans); color: var(--success); }
.lp-tier__price small { display: block; font: 500 .72rem var(--font-sans); letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 2px; }
.lp-lead textarea { width: 100%; padding: 14px 18px; border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface-0); color: var(--text-primary); font: inherit; resize: vertical; }
.lp-lead textarea:focus { outline: 2px solid var(--ring); outline-offset: 2px; }
.lp-lead--wide { max-width: 560px; }
.lp-stack { margin-top: 24px; border: 1px solid var(--border); border-radius: var(--radius-xl); background: var(--surface-0); overflow: hidden; }
.lp-stack__head { padding: 18px 24px; background: var(--surface-cream); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; font-weight: 600; color: var(--text-primary); }
[data-theme="dark"] .lp-stack__head { background: var(--surface-1); }
.lp-stack__head span { font-family: var(--font-serif); font-size: 1.3rem; color: var(--brand-strong); }
.lp-stack ul { margin: 0; padding: 8px 24px 20px; list-style: none; }
.lp-stack li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border-soft); color: var(--text-secondary); line-height: 1.65; }
.lp-stack li:last-child { border-bottom: 0; }
.lp-stack li::before { content: "✓"; color: var(--success); font-weight: 700; }
.lp-stack li strong { color: var(--text-primary); display: block; }
.lp-stack__foot { padding: 18px 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; align-items: center; background: var(--surface-1); }
.lp-pain { display: grid; gap: 14px; margin: 24px 0 0; padding: 0; list-style: none; grid-template-columns: 1fr; }
@media (min-width: 760px) { .lp-pain { grid-template-columns: repeat(2, 1fr); } }
.lp-pain li { border: 1px solid var(--border); border-left: 3px solid var(--brand); border-radius: var(--radius-md); padding: 16px 20px; background: var(--surface-0); color: var(--text-secondary); line-height: 1.65; }
.lp-steps { counter-reset: s; display: grid; gap: 14px; margin: 24px 0 0; padding: 0; list-style: none; }
.lp-steps li { counter-increment: s; position: relative; padding: 16px 20px 16px 62px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface-0); color: var(--text-secondary); line-height: 1.65; }
.lp-steps li::before { content: counter(s); position: absolute; left: 18px; top: 14px; width: 32px; height: 32px; border-radius: 50%; background: var(--gradient-brand); color: #fff; font-weight: 700; display: grid; place-items: center; }
.lp-steps li strong { color: var(--text-primary); }

.lp-consent { display: flex; gap: 10px; align-items: flex-start; font-size: .85rem; line-height: 1.55; color: var(--text-secondary); }
.lp-consent input { margin-top: 4px; accent-color: var(--brand); flex: none; }
.lp-consent a { color: var(--brand-strong); text-decoration: underline; }