/* nguyentuananh.com · trang chủ
   Màu theo Brand-Color MAROTA (nguồn chuẩn: 01.PROJECTS/Brand-Color), cùng bộ token với khuôn "Sổ tay coach". */

:root {
  --bg: #F8F7F6;
  --card: #FFFFFF;
  --soft: #EFEDEB;
  --line: #DBD9D6;
  --text: #262626;
  --muted: #545454;
  --navy: #1A1743;
  --navy-50: #F3F3F7;
  --navy-100: #E1E0EB;
  --red: #990001;
  --red-50: #FBEFEF;
  --red-line: #EBCFCF;
  --gold: #C9942E;
  --gold-text: #85621E;
  --gold-bg: #FBF6E8;
  --green: #2F7A55;
  --green-bg: #F1F8F4;
  --green-line: #CFE4D8;
  --hl: rgba(215, 194, 152, .55);
  --btn: #1A1743;
  --btn-text: #FFFFFF;
  --inverse-bg: #1A1743;
  --inverse-text: #FFFFFF;
  --inverse-muted: #C0BEDA;
  --shadow: 0 1px 2px rgba(26, 23, 67, .05), 0 8px 24px -12px rgba(26, 23, 67, .18);
  --radius: 16px;
  --sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Bricolage Grotesque", "Be Vietnam Pro", system-ui, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --wrap: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #100E2A; --card: #18163A; --soft: #1F1D45; --line: #2E2C5A;
    --text: #EDEBF5; --muted: #B4B1CC; --navy: #E9E7F7; --navy-50: #1D1B42; --navy-100: #2B2960;
    --red: #E07A7B; --red-50: #2A1830; --red-line: #4A2A3A;
    --gold: #D7AE5C; --gold-text: #E6C27A; --gold-bg: #2A2433;
    --green: #6CC596; --green-bg: #15282A; --green-line: #24493E;
    --hl: rgba(201, 148, 46, .38);
    --btn: #E9E7F7; --btn-text: #1A1743;
    --inverse-bg: #0B0A1F; --inverse-text: #EDEBF5; --inverse-muted: #B4B1CC;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #100E2A; --card: #18163A; --soft: #1F1D45; --line: #2E2C5A;
  --text: #EDEBF5; --muted: #B4B1CC; --navy: #E9E7F7; --navy-50: #1D1B42; --navy-100: #2B2960;
  --red: #E07A7B; --red-50: #2A1830; --red-line: #4A2A3A;
  --gold: #D7AE5C; --gold-text: #E6C27A; --gold-bg: #2A2433;
  --green: #6CC596; --green-bg: #15282A; --green-line: #24493E;
  --hl: rgba(201, 148, 46, .38);
  --btn: #E9E7F7; --btn-text: #1A1743;
  --inverse-bg: #0B0A1F; --inverse-text: #EDEBF5; --inverse-muted: #B4B1CC;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.6);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); color: var(--navy); line-height: 1.15; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 28px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--btn); color: var(--btn-text); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Thanh trên ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.top.is-scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; gap: 20px; height: 64px; }
.logo { text-decoration: none; font-family: var(--sans); font-size: 19px; letter-spacing: .02em; color: var(--navy); white-space: nowrap; }
.logo span { font-weight: 300; opacity: .72; }
.logo b { font-weight: 800; }
.logo { display: inline-flex; align-items: center; gap: 10px; line-height: 1; }
.logo-av { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); flex: none; }
.logo-t { display: flex; flex-direction: column; }
.logo small { font-size: 10.5px; font-weight: 300; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.logo .logo-main { font-weight: inherit; opacity: 1; }
.nav { display: none; gap: 24px; margin-left: auto; }
.nav a { text-decoration: none; font-size: 15px; font-weight: 500; color: var(--muted); transition: color .2s; }
.nav a:hover { color: var(--navy); }
.top-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
@media (min-width: 960px) { .nav { display: flex; } .top-actions { margin-left: 8px; } }

.theme-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--card); color: var(--navy);
  display: grid; place-items: center; cursor: pointer;
}
.theme-btn svg { width: 18px; height: 18px; }
.theme-btn .moon { display: none; }
:root[data-theme="dark"] .theme-btn .sun { display: none; }
:root[data-theme="dark"] .theme-btn .moon { display: block; }

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px;
  font: 600 16px/1.2 var(--sans); text-decoration: none; white-space: nowrap;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-main { background: var(--btn); color: var(--btn-text); }
.btn-line { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
@media (max-width: 420px) {
  .top .wrap { gap: 10px; }
  .logo { font-size: 16px; }
  .top .btn-sm { padding: 8px 12px; font-size: 13px; }
  .theme-btn { width: 34px; height: 34px; }
}

/* ---------- Khối mở đầu ---------- */
/* Bầu trời: dải nền rộng hết màn hình, không khung. Tông navy rất nhạt chuyển dần về nền be, một quầng nắng vàng đồng sau ảnh. */
.hero {
  --sky-top: #E1E0EB;
  --sky-mid: #EEEEF4;
  --sun: rgba(201, 148, 46, .22);
  --cloud: rgba(255, 255, 255, .75);
  position: relative; overflow: hidden;
  padding: 48px 0 0;
  margin-top: -64px; padding-top: calc(64px + 40px);
  background:
    radial-gradient(60% 45% at 78% 38%, var(--sun), transparent 70%),
    radial-gradient(38% 16% at 18% 22%, var(--cloud), transparent 70%),
    radial-gradient(30% 12% at 55% 12%, var(--cloud), transparent 70%),
    linear-gradient(180deg, var(--sky-top) 0%, var(--sky-mid) 48%, var(--bg) 100%);
}
:root[data-theme="dark"] .hero { --sky-top: #0C0A1E; --sky-mid: #131131; --sun: rgba(215, 174, 92, .16); --cloud: rgba(233, 231, 247, .05); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero { --sky-top: #0C0A1E; --sky-mid: #131131; --sun: rgba(215, 174, 92, .16); --cloud: rgba(233, 231, 247, .05); }
}
/* Vài vì sao rất mờ, chỉ hiện ở chế độ tối */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background:
    radial-gradient(1.5px 1.5px at 12% 18%, #fff, transparent),
    radial-gradient(1px 1px at 32% 9%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 48% 26%, #fff, transparent),
    radial-gradient(1px 1px at 66% 8%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 88% 16%, #fff, transparent),
    radial-gradient(1px 1px at 22% 40%, #fff, transparent),
    radial-gradient(1px 1px at 93% 44%, #fff, transparent);
}
:root[data-theme="dark"] .hero::before { opacity: .5; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero::before { opacity: .5; } }

.hero .wrap { position: relative; display: grid; gap: 24px; align-items: end; }
.hero .wrap > div:first-child { padding-bottom: 48px; }
@media (min-width: 900px) {
  .hero { padding-top: calc(64px + 64px); }
  .hero .wrap { grid-template-columns: 1.2fr 1fr; gap: 40px; }
  .hero .wrap > div:first-child { padding-bottom: 88px; align-self: center; }
}

.triad { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-bottom: 22px; padding: 0; list-style: none; }
.triad li { font-size: 14px; font-weight: 600; color: var(--gold-text); letter-spacing: .02em; display: inline-flex; align-items: center; gap: 14px; }
.triad li + li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }

.hero h1 { font-size: clamp(40px, 7vw, 76px); font-weight: 800; line-height: 1.05; letter-spacing: -.02em; max-width: 11em; }
.hero h1 .line { display: block; white-space: nowrap; }
.hero .pos { margin-top: 22px; font-size: clamp(19px, 2.2vw, 24px); font-weight: 500; line-height: 1.5; color: var(--navy); max-width: 30em; }
.hero h1 mark { background: linear-gradient(transparent 58%, var(--hl) 58%); color: inherit; padding: 0 .06em; }
.hero .sub { margin-top: 16px; font-size: clamp(14.5px, 1.5vw, 16px); font-weight: 400; line-height: 1.6; color: var(--muted); max-width: 34em; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* Ảnh đứng tự do, không khung, chân ảnh tan dần vào nền */
.portrait { position: relative; max-width: 520px; margin: 0 auto; width: 100%; align-self: end; }
.portrait img {
  width: 100%; height: auto;
  -webkit-mask-image: linear-gradient(to bottom, #000 72%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 72%, transparent 100%);
}
.badge {
  position: absolute; left: -6px; bottom: 22%; max-width: 250px;
  background: color-mix(in srgb, var(--card) 72%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent); border-radius: 14px;
  padding: 12px 14px; box-shadow: var(--shadow); font-size: 13px; line-height: 1.45; color: var(--muted);
}
.badge b { display: block; color: var(--navy); font-size: 15px; font-family: var(--display); }
.badge::before { content: ""; position: absolute; left: 14px; top: -1px; width: 28px; height: 3px; background: var(--gold); border-radius: 0 0 3px 3px; }
@media (max-width: 480px) { .badge { left: 8px; bottom: 14px; } }

/* ---------- Dòng hành trình ---------- */
.proof { padding: 0 0 24px; }
.proof ol {
  list-style: none; margin: 0; padding: 22px 0; display: grid; gap: 18px;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
@media (min-width: 720px) { .proof ol { grid-template-columns: repeat(4, 1fr); gap: 24px; } }
.proof li { display: flex; flex-direction: column; gap: 2px; }
.proof .when { font: 700 15px/1.3 var(--display); color: var(--gold-text); }
.proof .what { font-size: 15px; color: var(--text); }

/* ---------- Khối chung ---------- */
.block { padding: 64px 0; }
@media (min-width: 900px) { .block { padding: 88px 0; } }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-text); margin-bottom: 12px; }
.block h2 { font-size: clamp(27px, 3.8vw, 40px); font-weight: 700; max-width: 22em; }
.block .lead { margin-top: 14px; color: var(--muted); max-width: 40em; font-size: 18px; }

/* ---------- Cách mình làm việc ---------- */
.pillars { display: grid; gap: 16px; margin-top: 36px; }
@media (min-width: 860px) { .pillars { grid-template-columns: 1.2fr 1fr 1fr; } }
.pillar { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px 28px; position: relative; }
.pillar .num { font: 800 15px/1 var(--display); color: var(--gold-text); }
.pillar h3 { font-size: 24px; margin: 14px 0 10px; }
.pillar p { color: var(--muted); font-size: 16px; }
.pillar.first { background: var(--inverse-bg); border-color: transparent; color: var(--inverse-text); }
.pillar.first h3 { color: var(--inverse-text); }
.pillar.first p { color: var(--inverse-muted); }
.pillar.first .num { color: var(--gold); }
.pillar.first .tag {
  position: absolute; right: 18px; top: 18px; font-size: 12px; font-weight: 600;
  color: var(--inverse-text); border: 1px solid rgba(255,255,255,.28); border-radius: 999px; padding: 3px 10px;
}

/* ---------- Niềm tin ---------- */
.beliefs { margin-top: 36px; display: grid; gap: 12px; }
.belief { display: grid; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
@media (min-width: 820px) { .belief { grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; } }
.belief .old, .belief .new { display: flex; gap: 10px; align-items: flex-start; font-size: 16px; }
.belief .old { color: var(--muted); }
.belief .old s { text-decoration-color: var(--red); text-decoration-thickness: 1.5px; }
.belief .new { color: var(--text); font-weight: 600; }
.belief .ico { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; font-weight: 800; margin-top: 2px; }
.belief .old .ico { background: var(--red-50); color: var(--red); border: 1px solid var(--red-line); }
.belief .new .ico { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-line); }
.belief .to { color: var(--gold); font-weight: 700; text-align: center; }
@media (max-width: 819px) { .belief .to { display: none; } }
.beliefs-note { margin-top: 18px; font-size: 16px; color: var(--muted); }
.beliefs-note b { color: var(--navy); }

/* ---------- Video ---------- */
.feature {
  display: grid; gap: 0; margin-top: 36px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
.feature:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
@media (min-width: 860px) { .feature { grid-template-columns: 1.15fr 1fr; } }
.feature .thumb { position: relative; aspect-ratio: 16 / 9; background: var(--soft); }
.feature .thumb img { width: 100%; height: 100%; object-fit: cover; }
.feature .dur { position: absolute; right: 12px; bottom: 12px; background: rgba(12, 10, 30, .82); color: #fff; font-size: 13px; font-weight: 600; padding: 3px 9px; border-radius: 6px; }
.feature .body { padding: 26px 24px; display: flex; flex-direction: column; gap: 12px; }
.feature .kind { font-size: 13px; font-weight: 600; color: var(--gold-text); }
.feature h3 { font-size: 26px; }
.feature p { color: var(--muted); font-size: 16px; }
.feature .go { margin-top: auto; font-weight: 600; color: var(--navy); display: inline-flex; gap: 6px; }
.video-more { margin-top: 18px; font-size: 15px; color: var(--muted); }
.video-more a { color: var(--navy); font-weight: 600; }

/* ---------- Dành cho ai ---------- */
.fit { display: grid; gap: 16px; margin-top: 36px; }
@media (min-width: 860px) { .fit { grid-template-columns: 1fr 1fr; } }
.fit-col { border-radius: var(--radius); padding: 26px 24px; border: 1px solid var(--line); background: var(--card); }
.fit-col h3 { font-size: 20px; display: flex; align-items: center; gap: 10px; }
.fit-col ul { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 12px; }
.fit-col li { display: flex; gap: 10px; font-size: 16px; }
.fit-col li::before { flex: none; width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 800; margin-top: 3px; }
.fit-yes li::before { content: "✓"; background: var(--green-bg); color: var(--green); border: 1px solid var(--green-line); }
.fit-no li::before { content: "–"; background: var(--soft); color: var(--muted); border: 1px solid var(--line); }
.fit-no li { color: var(--muted); }

/* ---------- Làm việc cùng mình ---------- */
.offers { display: grid; gap: 16px; margin-top: 36px; }
@media (min-width: 860px) { .offers { grid-template-columns: 1fr 1fr; } }
.offer { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; display: flex; flex-direction: column; gap: 12px; }
.offer .kind { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--gold-text); }
.offer h3 { font-size: 24px; }
.offer .price { font: 700 22px/1.3 var(--display); color: var(--navy); }
.offer .price small { font: 500 15px var(--sans); color: var(--muted); }
.offer ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 16px; display: grid; gap: 6px; }
.offer .btn { align-self: flex-start; margin-top: 8px; }
.pay-note { margin-top: 18px; font-size: 15px; color: var(--muted); display: flex; gap: 10px; align-items: flex-start; }
.pay-note::before { content: ""; flex: none; width: 3px; align-self: stretch; background: var(--gold); border-radius: 3px; }

/* ---------- Newsletter ---------- */
.letter { background: var(--inverse-bg); color: var(--inverse-text); border-radius: 24px; padding: 40px 24px; display: grid; gap: 28px; position: relative; overflow: hidden; }
@media (min-width: 860px) { .letter { grid-template-columns: 1.1fr 1fr; padding: 52px 48px; align-items: center; } }
.letter::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: linear-gradient(90deg, var(--red), transparent 60%); }
.letter h2 { color: var(--inverse-text); }
.letter .eyebrow { color: var(--gold); }
.letter .lead { color: var(--inverse-muted); }
.letter ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; counter-reset: p; }
.letter li { counter-increment: p; display: flex; gap: 14px; align-items: baseline; color: var(--inverse-muted); font-size: 16px; }
.letter li b { color: var(--inverse-text); }
.letter li::before { content: "0" counter(p); font: 800 14px var(--display); color: var(--gold); }
.letter .btn { background: var(--inverse-text); color: #1A1743; margin-top: 24px; }
:root[data-theme="dark"] .letter .btn { color: #0B0A1F; }
.letter small { display: block; margin-top: 10px; color: var(--inverse-muted); font-size: 13px; }

/* ---------- Khóa học ---------- */
.courses { display: grid; gap: 20px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; background: var(--card); }
@media (min-width: 860px) { .courses { grid-template-columns: 1fr auto; padding: 36px 40px; } }
.courses h2 { font-size: clamp(24px, 3vw, 32px); }
.courses p { margin-top: 10px; color: var(--muted); }

/* ---------- Chân trang ---------- */
.foot { margin-top: 72px; padding: 40px 0 48px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.foot .wrap { display: grid; gap: 24px; }
@media (min-width: 860px) { .foot .wrap { grid-template-columns: 1.4fr 1fr 1fr; } }
.foot h4 { margin: 0 0 10px; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--navy); }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--navy); text-decoration: underline; }
.foot .legal { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; }
.todo { background: var(--gold-bg); color: var(--gold-text); border: 1px dashed var(--gold); border-radius: 6px; padding: 1px 6px; font-size: 12px; }

/* ---------- Hiện dần khi cuộn ---------- */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .feature { transition: none; }
}
:focus-visible { outline: 2.5px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

/* ---------- Lưới trang sổ tay video ---------- */
.vcard { display: flex; flex-direction: column; gap: 8px; height: 100%; color: inherit; text-decoration: none; }
.vthumb { position: relative; display: block; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: var(--soft); border: 1px solid var(--line); }
.vthumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s var(--ease); }
.vcard:hover .vthumb img { transform: scale(1.04); }
.vthumb .dur { position: absolute; right: 8px; bottom: 8px; background: rgba(12, 10, 30, .82); color: #fff; font-size: 12px; font-weight: 600; padding: 2px 7px; border-radius: 5px; }
.vgo { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--navy); }
.vtopic { font-size: 12px; font-weight: 600; color: var(--gold-text); }
.vtitle { font-weight: 600; font-size: 15px; line-height: 1.4; color: var(--navy); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.vcard:hover .vtitle { text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }
.vcard:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; border-radius: 12px; }

.vgrid { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 24px 16px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

/* Ba bước làm việc */
@media (min-width: 900px) { .offers { grid-template-columns: repeat(3, 1fr); } }
.offer-first { border-color: var(--navy); box-shadow: var(--shadow); }
@media (prefers-reduced-motion: reduce) { .vthumb img { transition: none; } }

/* ---------- Lộ trình "Từ tự lo, đến tự do" ---------- */
.journey-ends { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 36px; font: 700 14px var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--gold-text); }
.journey-ends::before { content: ""; order: 1; flex: 1; height: 2px; background: linear-gradient(90deg, var(--line), var(--gold)); border-radius: 2px; }
.journey-ends span:last-child { order: 2; color: var(--navy); }
.journey { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 16px; counter-reset: st; }
@media (min-width: 720px) { .journey { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .journey { grid-template-columns: repeat(4, 1fr); } }
.stage { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; display: flex; flex-direction: column; gap: 10px; position: relative; }
.stage::before { content: ""; position: absolute; left: 20px; top: -1px; width: 32px; height: 3px; background: var(--gold); border-radius: 0 0 3px 3px; }
.stage:last-child { background: var(--inverse-bg); border-color: transparent; color: var(--inverse-text); }
.stage:last-child h3 { color: var(--inverse-text); }
.stage:last-child .stage-when, .stage:last-child .stage-go span { color: var(--inverse-muted); }
.stage:last-child .stage-ai { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); color: var(--inverse-text); }
.stage:last-child .stage-tags li { border-color: rgba(255,255,255,.18); color: var(--inverse-muted); }
.stage:last-child .stage-go { color: var(--inverse-text); }
.stage-num { font: 700 13px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text); }
.stage:last-child .stage-num { color: var(--gold); }
.stage h3 { font-size: 22px; line-height: 1.2; }
.stage-when { color: var(--muted); font-size: 15px; }
.stage-ai { font-size: 14px; line-height: 1.5; background: var(--gold-bg); border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent); border-radius: 10px; padding: 10px 12px; color: var(--text); }
.stage-ai b { display: block; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--gold-text); margin-bottom: 2px; }
.stage:last-child .stage-ai b { color: var(--gold); }
.stage-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.stage-tags li { font-size: 12px; border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px; color: var(--muted); }
.stage-go { margin-top: auto; padding-top: 6px; font-weight: 600; font-size: 15px; color: var(--navy); display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: baseline; }
.stage-go span:first-child { width: 100%; font-weight: 500; font-size: 13px; color: var(--muted); }
.foundation { margin-top: 16px; border: 1px dashed var(--gold); border-radius: var(--radius); padding: 16px 20px; display: grid; gap: 4px; background: color-mix(in srgb, var(--gold-bg) 60%, transparent); }
@media (min-width: 860px) { .foundation { grid-template-columns: 260px 1fr; align-items: center; gap: 20px; } }
.foundation b { font: 700 17px var(--display); color: var(--navy); }
.foundation p { color: var(--muted); font-size: 15px; }

/* Sổ tay gần đây (băng chuyền) */
.sub-h { font-size: 22px; margin-top: 40px; }
.vrow { list-style: none; margin: 16px 0 0; padding: 4px 2px 14px; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(240px, 1fr); gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; }
@media (min-width: 900px) { .vrow { grid-auto-columns: calc((100% - 32px) / 3); } }
.vrow li { scroll-snap-align: start; }
.vmeta { font-size: 13px; color: var(--muted); }

/* Cách làm việc: ba bước trong khối Làm việc cùng mình */
.method { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 20px; }
.method-h { font-weight: 600; color: var(--navy); }
.method ol { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 12px; counter-reset: m; }
@media (min-width: 860px) { .method ol { grid-template-columns: repeat(3, 1fr); } }
.method li { counter-increment: m; display: grid; gap: 2px; padding-left: 36px; position: relative; font-size: 15px; }
.method li::before { content: counter(m, decimal-leading-zero); position: absolute; left: 0; top: 0; font: 800 15px var(--display); color: var(--gold-text); }
.method li b { color: var(--navy); }
.method li span { color: var(--muted); }

/* Học miễn phí */
.learn { display: grid; gap: 24px; margin-top: 32px; }
@media (min-width: 900px) { .learn { grid-template-columns: 1fr 1fr; align-items: start; } }
.learn .courses { grid-template-columns: 1fr; }
.learn .courses h3 { font-size: 24px; }
.posts { list-style: none; margin: 4px 0 0; padding: 0; border-top: 1px solid var(--line); }
.posts li { border-bottom: 1px solid var(--line); }
.posts a, .posts .todo-row { display: grid; gap: 2px; padding: 14px 4px; color: inherit; text-decoration: none; }
.posts .post-t { font-weight: 600; color: var(--navy); }
.posts a:hover .post-t { text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }
.posts .post-m { font-size: 13px; color: var(--muted); }
.posts .todo-row { outline: 1px dashed var(--gold); outline-offset: -4px; border-radius: 8px; padding: 12px 14px; margin: 6px 0; }
.posts .todo-row .post-t { color: var(--gold-text); font-weight: 500; }

/* Về mình */
.about { max-width: 46em; }
.about h2 { margin-top: 4px; }
.about p { margin-top: 14px; color: var(--muted); font-size: 17px; }
.about .btn { margin-top: 22px; }
.stage-go { text-decoration: none; }
.stage-go:hover { text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }
.stage-todo { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; font-size: 14px; }
.stage-todo li { position: relative; padding-left: 22px; line-height: 1.45; }
.stage-todo li::before { content: ""; position: absolute; left: 2px; top: 4px; width: 11px; height: 11px; border: 1.5px solid var(--gold); border-radius: 3px; }
.stage:last-child .stage-todo li { color: var(--inverse-text); }
.stage h3 { font-size: 24px; }

/* Phần mở đầu vừa một màn hình máy tính (Donnie, 14/11/2026): cỡ chữ và ảnh co theo chiều cao màn hình */
@media (min-width: 900px) {
  .hero { padding-top: calc(64px + 36px); }
  .hero .wrap > div:first-child { padding-bottom: 40px; }
  .triad { margin-bottom: 16px; }
  .hero h1 { font-size: clamp(40px, min(6vw, 8.5vh), 76px); }
  .hero .pos { margin-top: 18px; font-size: clamp(18px, min(1.9vw, 2.9vh), 23px); }
  .hero .sub { margin-top: 10px; font-size: 17px; }
  .hero .cta { margin-top: 24px; }
  .portrait { max-width: min(520px, 60vh); }
  .proof ol { padding: 18px 0; }
}
/* Thẻ danh xưng trên một dòng */
.badge { max-width: none; white-space: nowrap; }
@media (max-width: 480px) { .badge { white-space: normal; max-width: 250px; } }

/* Hàng hành trình 5 mốc (thêm MAROTA 2016–nay) */
@media (min-width: 720px) { .proof ol { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1040px) { .proof ol { grid-template-columns: repeat(5, 1fr); gap: 20px; } }

/* Thẻ "Hạng 11" ngang hàng với hai nút ở cột trái (Donnie, 14/11/2026).
   Cột chữ bám đáy như ảnh; nút cách đáy 40px, cao 48px → tâm nút cách đáy 64px. */
@media (min-width: 900px) {
  .hero .wrap > div:first-child { align-self: end; }
  .badge { bottom: 64px; transform: translateY(50%); }
}

.vcard-todo .vthumb { border: 1px dashed var(--gold); background: color-mix(in srgb, var(--gold-bg) 60%, transparent); }
.vcard-todo .vtitle { color: var(--gold-text); font-weight: 500; }
.vthumb .demo-tag { position: absolute; left: 8px; top: 8px; background: var(--gold); color: #1A1743; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 3px 8px; border-radius: 5px; }
.vcard-demo { cursor: default; }

/* ---------- Trang /videos/ và link "Xem tất cả" ---------- */
.sub-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 16px; margin-top: 40px; }
.sub-head .sub-h { margin-top: 0; }
.see-all { font-weight: 600; font-size: 15px; color: var(--navy); text-decoration: none; }
.see-all:hover { text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }
.page-head h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.1; margin-top: 4px; }
.page-head { padding-bottom: 32px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { font: 500 14px var(--sans); color: var(--navy); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; cursor: pointer; }
.chip span { color: var(--muted); font-size: 12px; margin-left: 2px; }
.chip:hover { border-color: var(--navy); }
.chip[aria-pressed="true"] { background: var(--btn); color: var(--btn-text); border-color: var(--btn); }
.chip[aria-pressed="true"] span { color: inherit; opacity: .75; }
.vgrid li[hidden] { display: none; }
.demo-note { margin-top: 8px; font-size: 14px; color: var(--gold-text); }

/* ---------- Danh sách bài viết ---------- */
.posts .post-s { font-size: 14px; color: var(--muted); line-height: 1.5; }
.posts .pending > div { display: grid; gap: 2px; padding: 12px 4px; }
.posts .pending .post-t { color: var(--muted); font-weight: 500; }
.st { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; border-radius: 5px; padding: 2px 7px; margin-right: 8px; vertical-align: 1px; }
.st-da-viet-lai { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-line); }
.st-chua-viet-lai { background: var(--gold-bg); color: var(--gold-text); }
.st-chua-xep { background: var(--soft); color: var(--muted); }
.st-bo-301 { background: var(--red-50); color: var(--red); border: 1px solid var(--red-line); }
.review-note { margin-top: 16px; padding: 12px 14px; border: 1px dashed var(--gold); border-radius: 10px; font-size: 14px; color: var(--text); max-width: 46em; }
.post-group { margin-top: 40px; }
.post-group h2 { font-size: 26px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.post-group h2 .stage-num { width: 100%; font-size: 13px; }
.post-group h2 small { font: 500 14px var(--sans); color: var(--muted); }
.post-group-review h2 { color: var(--muted); }
a.chip { text-decoration: none; }

/* ---------- Trang bài viết (khuôn sổ tay gọn) ---------- */
.post { max-width: var(--wrap); margin: 0 auto; padding: 40px 20px 72px; }
@media (min-width: 720px) { .post { padding: 56px 28px 96px; } }
.post-head { max-width: 46em; }
.crumbs { font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--gold-text); text-decoration: none; font-weight: 600; }
.post-head h1 { font-size: clamp(30px, 4.4vw, 48px); line-height: 1.12; margin-top: 10px; }
.post-meta { margin-top: 12px; font-size: 14px; color: var(--muted); }
.post-layout { display: grid; gap: 28px; margin-top: 36px; }
@media (min-width: 1000px) { .post-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 56px; } }
.toc { font-size: 14px; }
@media (min-width: 1000px) { .post-side { position: sticky; top: 88px; align-self: start; } }
.toc-h { font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--muted); }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--navy); }
.post-body { max-width: 44em; font-size: 17px; line-height: 1.7; }
.post-body section { margin-top: 48px; scroll-margin-top: 84px; }
.post-body h2 { font-size: 28px; line-height: 1.2; display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.post-body h2 .n { font: 800 16px var(--display); color: var(--gold-text); }
.post-body p + p { margin-top: 14px; }
.post-body a { color: var(--navy); text-decoration-color: var(--gold); text-underline-offset: 3px; }
.tldr { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--gold); border-radius: 12px; padding: 18px 20px; }
.tldr-h { font-weight: 700; color: var(--navy); font-size: 15px; letter-spacing: .04em; text-transform: uppercase; }
.tldr ul { margin: 8px 0 0; padding-left: 20px; display: grid; gap: 6px; font-size: 16px; }
.shift { display: grid; gap: 8px; margin-bottom: 18px; }
.shift .old, .shift .new { display: flex; gap: 10px; align-items: flex-start; font-size: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.shift .old { color: var(--muted); }
.shift .old s { text-decoration-color: var(--red); }
.shift .new { font-weight: 600; }
.shift .ico { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 800; margin-top: 2px; }
.shift .old .ico { background: var(--red-50); color: var(--red); border: 1px solid var(--red-line); }
.shift .new .ico { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-line); }
.levels, .steps { margin: 0; padding-left: 22px; display: grid; gap: 14px; }
.levels b, .steps b { color: var(--navy); }
.levels p { margin-top: 2px; }
.video-embed { margin: 28px 0 0; }
.video-embed .frame { position: relative; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: #000; }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-embed figcaption { margin-top: 8px; font-size: 14px; color: var(--muted); }
.prompt { margin-top: 18px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--card); }
.prompt-bar { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; background: var(--soft); font-size: 13px; font-weight: 600; color: var(--navy); }
.copy-btn { font: 600 13px var(--sans); border: 1px solid var(--line); background: var(--card); color: var(--navy); border-radius: 6px; padding: 4px 12px; cursor: pointer; }
.copy-btn.done { background: var(--green-bg); color: var(--green); border-color: var(--green-line); }
.prompt pre { margin: 0; padding: 14px 16px; white-space: pre-wrap; font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text); }
.post-body .note { margin-top: 12px; font-size: 15px; color: var(--muted); }
.coach-q { background: var(--inverse-bg); color: var(--inverse-text); border-radius: var(--radius); padding: 22px 22px 18px; }
.coach-q .q { font: 600 19px/1.5 var(--display); }
.tu-van { width: 100%; margin-top: 14px; border-radius: 10px; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.06); color: var(--inverse-text); font: 16px/1.6 var(--sans); padding: 12px 14px; resize: vertical; }
.tu-van::placeholder { color: var(--inverse-muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.resource, .related { margin-top: 44px; }
.resource ul, .related ul { margin: 8px 0 0; padding-left: 20px; display: grid; gap: 8px; font-size: 16px; }
.post-body .todo { font-size: 13px; color: var(--gold-text); border: 1px dashed var(--gold); border-radius: 6px; padding: 1px 6px; }
.post-cta { margin-top: 48px; display: grid; gap: 16px; align-items: center; border: 1px solid var(--navy); border-radius: var(--radius); padding: 24px; background: var(--card); }
@media (min-width: 720px) { .post-cta { grid-template-columns: 1fr auto; } }
.post-cta h3 { font-size: 22px; }
.post-cta p { color: var(--muted); font-size: 15px; margin-top: 4px; }

/* Ảnh trong bài viết */
.post-fig { margin: 20px 0 24px; }
.post-fig img { display: block; width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line, rgba(26,23,67,.12)); background: #fff; }
.post-fig figcaption { margin-top: 8px; font-size: 14px; color: var(--muted, #5b5873); }
.levels .post-fig { margin: 12px 0 0; max-width: 520px; }
.resource .res-fig { display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: center; }
.resource .res-fig img { width: 120px; height: auto; border-radius: 8px; }
@media (max-width: 480px) { .resource .res-fig { grid-template-columns: 1fr; } }

/* Ảnh nhỏ trong danh sách bài đã viết lại */
.posts .post-x { display: grid; gap: 2px; min-width: 0; }
.posts a.has-thumb { grid-template-columns: 160px 1fr; gap: 16px; align-items: center; }
.posts .post-thumb { display: block; width: 160px; height: 90px; object-fit: cover; object-position: center; border-radius: 8px; border: 1px solid var(--line); background: #fff; }
@media (max-width: 560px) {
  .posts a.has-thumb { grid-template-columns: 96px 1fr; gap: 12px; align-items: start; }
  .posts .post-thumb { width: 96px; height: 54px; }
}

/* Nút trong thân bài: không để màu liên kết của .post-body a đè lên chữ nút */
.post-body a.btn-main { color: var(--btn-text); text-decoration: none; }

/* Hình trong danh sách bước; bài trắc nghiệm tự chấm */
.steps .post-fig { margin: 12px 0 0; max-width: 520px; }
.quiz { display: grid; gap: 14px; margin-top: 12px; }
.quiz fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px 14px; margin: 0; background: var(--card); }
.quiz legend { padding: 0 6px; font-weight: 600; color: var(--navy); font-size: 16px; }
.quiz .qn { color: var(--gold-text); }
.quiz .opts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.quiz .opts label { cursor: pointer; }
.quiz .opts input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.quiz .opts span { display: inline-block; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; background: var(--bg, #fff); }
.quiz .opts input:checked + span { background: var(--navy); color: #fff; border-color: var(--navy); }
.quiz .opts input:focus-visible + span { outline: 2px solid var(--gold); outline-offset: 2px; }
.quiz .quiz-go { justify-self: start; }
.quiz-out { border: 1px solid var(--navy); border-radius: 12px; padding: 16px 18px; background: var(--card); }
.quiz-out p + p { margin-top: 8px; }
.quiz-out [data-out].low { background: var(--gold-bg); border-radius: 8px; padding: 6px 10px; }

/* Trang Bài viết: thẻ, tab chặng, ô tìm, phân trang */
.ptools { display: grid; gap: 12px; margin-bottom: 6px; }
.psearch { width: 100%; max-width: 420px; font: 400 16px var(--sans); color: var(--navy); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; }
.psearch:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.ptab-intro { min-height: 1.5em; margin: 12px 0 18px; color: var(--muted); font-size: 15px; }
.pgrid { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 960px) { .pgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .pgrid { grid-template-columns: 1fr; } }
.pgrid > li[hidden] { display: none; }
.pcard { display: grid; grid-template-rows: auto 1fr; height: 100%; color: inherit; text-decoration: none; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; transition: border-color .15s, transform .15s; }
.pcard:hover, .pcard:focus-visible { border-color: var(--navy); transform: translateY(-2px); }
.pcard:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.pcard-img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; object-position: center; background: var(--soft); }
.pcard-ph { display: grid; place-items: center; font: 700 13px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text); }
.pcard-b { display: grid; gap: 6px; align-content: start; padding: 14px 16px 16px; }
.pcard-st { font: 700 12px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text); }
.pcard-t { font: 600 18px/1.35 var(--display); color: var(--navy); }
.pcard-s { font-size: 14px; line-height: 1.5; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.pcard-m { font-size: 13px; color: var(--muted); }
.pempty { margin-top: 24px; color: var(--muted); }
.pager { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 32px; }
.pager button { min-width: 40px; height: 40px; padding: 0 12px; font: 500 15px var(--sans); color: var(--navy); background: var(--card); border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.pager button:hover:not(:disabled) { border-color: var(--navy); }
.pager button[aria-current="page"] { background: var(--btn); color: var(--btn-text); border-color: var(--btn); }
.pager button:disabled { opacity: .4; cursor: default; }
.pager button:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* Trang chủ: khối Học miễn phí */
.pgrid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1000px) { .pgrid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .pgrid-4 { grid-template-columns: 1fr; } }
.home-posts .pcard-t { font-size: 17px; }
.course-band { margin-top: 28px; display: grid; gap: 16px; align-items: center; border: 1px solid var(--navy); border-radius: var(--radius); padding: 24px; background: var(--card); }
@media (min-width: 720px) { .course-band { grid-template-columns: 1fr auto; } }
.course-band h3 { font-size: 22px; margin-top: 2px; }
.course-band p:not(.eyebrow) { color: var(--muted); margin-top: 4px; }

/* Thẻ khóa học Claude Mastery 101 trong bài viết */
.course-promo { display: block; text-decoration: none; color: var(--navy); background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin-top: 24px; box-shadow: var(--shadow); transition: transform .2s var(--ease), border-color .2s; }
.course-promo:hover { transform: translateY(-2px); border-color: var(--gold); }
.course-promo img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.course-promo .cp-body { display: block; padding: 12px 14px 14px; }
.course-promo .cp-kind { display: block; font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text); }
.course-promo b { display: block; margin-top: 4px; font-family: var(--display); font-size: 17px; }
.course-promo .cp-go { display: block; margin-top: 8px; font-size: 14px; font-weight: 600; }
.course-promo-m { display: none; }
@media (max-width: 999px) { .post-side .course-promo { display: none; } .course-promo-m { display: block; max-width: 420px; } }