/* ════════════════════════════════════════════════════════════════════ */
/*  NAVSEnglish — Public Landing Design System                          */
/*  Conversion-focused, mobile-first, premium SaaS aesthetics            */
/* ════════════════════════════════════════════════════════════════════ */

:root {
    /* Brand — rebound to global tokens (CLAUDE.md: chỉ teal/emerald/cyan/amber) */
    --kh-primary:        var(--color-warning);
    --kh-primary-dark:   var(--color-warning-deep);
    --kh-primary-soft:   var(--color-warning-soft);
    --kh-accent:         var(--color-accent);          /* was indigo #4f46e5 — vi phạm */
    --kh-accent-soft:    var(--color-accent-soft);
    --kh-success:        var(--color-secondary);       /* was green #16a34a */
    --kh-success-soft:   var(--color-secondary-soft);
    --kh-warning:        var(--color-warning);
    --kh-warning-soft:   var(--color-warning-soft);
    --kh-info:           var(--color-accent);          /* was sky #0ea5e9 */
    --kh-info-soft:      var(--color-accent-soft);

    /* Track colors — chỉ teal/emerald/cyan/amber */
    --kh-track-foundation: var(--color-secondary);     /* was green #16a34a */
    --kh-track-ielts:      var(--color-primary);
    --kh-track-toeic:      var(--color-warning-deep);  /* was brown #b45309 */
    --kh-track-shadowing:  var(--color-accent);

    /* Neutrals — rebound to global tokens */
    --kh-ink:        var(--color-ink);
    --kh-text:       var(--color-text);
    --kh-muted:      var(--color-muted);
    --kh-line:       var(--color-line);
    --kh-line-soft:  var(--color-soft);
    --kh-bg:         var(--color-bg);
    --kh-bg-soft:    var(--color-soft);

    /* Type */
    --kh-font: 'Inter', 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;

    /* Spacing scale (4px base) */
    --kh-s1: 4px;  --kh-s2: 8px;  --kh-s3: 12px;
    --kh-s4: 16px; --kh-s5: 20px; --kh-s6: 24px;
    --kh-s8: 32px; --kh-s10: 40px; --kh-s12: 48px;
    --kh-s16: 64px; --kh-s20: 80px; --kh-s24: 96px;

    /* Radius */
    --kh-r-sm: 6px;
    --kh-r-md: 10px;
    --kh-r-lg: 16px;
    --kh-r-xl: 24px;
    --kh-r-pill: 999px;

    /* Shadows */
    --kh-shadow-sm: 0 1px 2px rgba(15,23,42,.05);
    --kh-shadow-md: 0 4px 12px rgba(15,23,42,.08);
    --kh-shadow-lg: 0 12px 32px rgba(15,23,42,.10);
    --kh-shadow-xl: 0 24px 64px rgba(15,23,42,.14);
    --kh-shadow-glow: 0 8px 28px rgba(20, 184, 166,.22);

    /* Easing */
    --kh-ease: cubic-bezier(.4, 0, .2, 1);
}

/* ── Global resets (scoped to .kh-page) ────────────────────────────── */
.kh-page { font-family: var(--kh-font); color: var(--kh-text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
.kh-page *, .kh-page *::before, .kh-page *::after { box-sizing: border-box; }
.kh-page img { max-width: 100%; height: auto; display: block; }
.kh-page a { color: var(--kh-primary); text-decoration: none; transition: color .15s var(--kh-ease); }
.kh-page a:hover { color: var(--kh-primary-dark); }

/* ── Container ─────────────────────────────────────────────────────── */
.kh-container { max-width: 1200px; margin: 0 auto; padding: 0 var(--kh-s5); }
.kh-container--sm { max-width: 768px; }
.kh-container--lg { max-width: 1320px; }

/* ── Section ───────────────────────────────────────────────────────── */
.kh-section { padding: var(--kh-s24) 0; }
.kh-section--soft { background: var(--kh-bg-soft); }
.kh-section--dark { background: var(--kh-ink); color: var(--color-on-dark); }
.kh-section--gradient { background: linear-gradient(135deg, var(--color-warning-soft) 0%, var(--color-on-dark) 50%, var(--color-accent-soft) 100%); }

@media (max-width: 768px) {
    .kh-section { padding: var(--kh-s16) 0; }
}

/* ── Section header ────────────────────────────────────────────────── */
.kh-section-head { text-align: center; max-width: 720px; margin: 0 auto var(--kh-s12); }
.kh-eyebrow {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; background: var(--kh-primary-soft); color: var(--kh-primary);
    border-radius: var(--kh-r-pill); font-size: 12px; font-weight: 700;
    letter-spacing: .05em; text-transform: uppercase; margin-bottom: var(--kh-s4);
}
.kh-eyebrow i { font-size: 11px; }
.kh-h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 800; color: var(--kh-ink); letter-spacing: -.02em; line-height: 1.1; margin: 0 0 var(--kh-s4); }
.kh-h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; color: var(--kh-ink); letter-spacing: -.02em; line-height: 1.15; margin: 0 0 var(--kh-s4); }
.kh-h3 { font-size: clamp(20px, 2.4vw, 26px); font-weight: 700; color: var(--kh-ink); letter-spacing: -.01em; margin: 0 0 var(--kh-s3); }
.kh-lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--kh-muted); line-height: 1.6; }
.kh-text-muted { color: var(--kh-muted); }
.kh-text-ink { color: var(--kh-ink); }

/* ── Buttons ───────────────────────────────────────────────────────── */
.kh-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--kh-r-md);
    font-family: inherit; font-size: 15px; font-weight: 700;
    text-decoration: none; border: 1.5px solid transparent;
    cursor: pointer; transition: all .18s var(--kh-ease);
    white-space: nowrap;
}
.kh-btn:focus { outline: 3px solid rgba(20, 184, 166,.25); outline-offset: 2px; }
.kh-btn--lg { padding: 18px 36px; font-size: 17px; }
.kh-btn--sm { padding: 9px 18px; font-size: 13.5px; }
.kh-btn--xl { padding: 22px 44px; font-size: 18px; border-radius: var(--kh-r-lg); }

.kh-btn--primary {
    background: var(--kh-primary); color: var(--color-on-dark); border-color: var(--kh-primary);
    box-shadow: var(--kh-shadow-glow);
}
.kh-btn--primary:hover {
    background: var(--kh-primary-dark); border-color: var(--kh-primary-dark);
    transform: translateY(-2px); color: var(--color-on-dark);
    box-shadow: 0 14px 36px rgba(20, 184, 166,.32);
}

.kh-btn--ghost { background: transparent; color: var(--kh-ink); border-color: var(--kh-line); }
.kh-btn--ghost:hover { background: var(--kh-bg-soft); color: var(--kh-primary); border-color: var(--kh-primary); }

.kh-btn--white { background: var(--color-on-dark); color: var(--kh-ink); border-color: var(--color-on-dark); box-shadow: var(--kh-shadow-md); }
.kh-btn--white:hover { transform: translateY(-2px); box-shadow: var(--kh-shadow-lg); color: var(--kh-primary); }

.kh-btn--outline { background: transparent; color: var(--kh-primary); border-color: var(--kh-primary); }
.kh-btn--outline:hover { background: var(--kh-primary); color: var(--color-on-dark); }

/* ── Cards ─────────────────────────────────────────────────────────── */
.kh-card {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg);
    padding: var(--kh-s8); transition: all .2s var(--kh-ease);
}
.kh-card:hover { transform: translateY(-4px); box-shadow: var(--kh-shadow-lg); border-color: transparent; }
.kh-card--interactive { cursor: pointer; }

/* ── Stat / number block ─────────────────────────────────────────── */
.kh-stat { text-align: center; padding: var(--kh-s4); }
.kh-stat__num { font-size: clamp(32px, 4vw, 44px); font-weight: 800; color: var(--kh-ink); letter-spacing: -.02em; line-height: 1; }
.kh-stat__lbl { font-size: 13.5px; color: var(--kh-muted); margin-top: 6px; font-weight: 500; }

/* ── Grid utilities ────────────────────────────────────────────────── */
.kh-grid { display: grid; gap: var(--kh-s6); }
.kh-grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.kh-grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.kh-grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ── Icon wrap ─────────────────────────────────────────────────────── */
.kh-icon-box {
    width: 56px; height: 56px; border-radius: var(--kh-r-md);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 22px; flex-shrink: 0;
}
.kh-icon-box--primary { background: var(--kh-primary-soft); color: var(--kh-primary); }
.kh-icon-box--accent  { background: var(--kh-accent-soft);  color: var(--kh-accent); }
.kh-icon-box--success { background: var(--kh-success-soft); color: var(--kh-success); }
.kh-icon-box--warning { background: var(--kh-warning-soft); color: var(--kh-warning); }
.kh-icon-box--info    { background: var(--kh-info-soft);    color: var(--kh-info); }

/* ── Hero ──────────────────────────────────────────────────────────── */
.kh-hero {
    position: relative; overflow: hidden;
    padding: var(--kh-s24) 0 var(--kh-s20);
    background: linear-gradient(180deg, var(--kh-bg) 0%, var(--kh-bg-soft) 100%);
}
.kh-hero::before {
    content: ''; position: absolute; top: -200px; right: -200px;
    width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, rgba(20, 184, 166,.10), transparent 70%);
    pointer-events: none;
}
.kh-hero::after {
    content: ''; position: absolute; bottom: -200px; left: -200px;
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(79,70,229,.08), transparent 70%);
    pointer-events: none;
}
.kh-hero__inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: var(--kh-s12); align-items: center; }
.kh-hero__cta { display: flex; gap: var(--kh-s3); flex-wrap: wrap; margin-top: var(--kh-s6); }
.kh-hero__trust {
    display: flex; flex-wrap: wrap; align-items: center; gap: var(--kh-s5);
    margin-top: var(--kh-s8); padding-top: var(--kh-s5);
    border-top: 1px solid var(--kh-line);
    font-size: 13px; color: var(--kh-muted);
}
.kh-hero__trust strong { color: var(--kh-ink); font-size: 16px; }
.kh-hero__visual {
    position: relative; aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--kh-primary-soft) 0%, var(--kh-accent-soft) 100%);
    border-radius: var(--kh-r-xl);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--kh-shadow-xl);
    overflow: hidden;
}
.kh-hero__visual::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.5), transparent 60%);
    pointer-events: none;
}
@media (max-width: 992px) {
    .kh-hero__inner { grid-template-columns: 1fr; }
    .kh-hero__visual { max-width: 400px; margin: 0 auto; }
}

/* ── Path / Track card ─────────────────────────────────────────────── */
.kh-path-card {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg);
    overflow: hidden; transition: all .25s var(--kh-ease); display: flex; flex-direction: column;
    text-decoration: none; color: inherit;
}
.kh-path-card:hover { transform: translateY(-6px); box-shadow: var(--kh-shadow-xl); border-color: transparent; color: inherit; }
.kh-path-card__top { padding: var(--kh-s6); background: linear-gradient(135deg, var(--track-color, var(--kh-primary)) 0%, color-mix(in srgb, var(--track-color, var(--kh-primary)) 70%, var(--color-ink)) 100%); color: var(--color-on-dark); }
.kh-path-card__icon { width: 48px; height: 48px; border-radius: var(--kh-r-md); background: rgba(255,255,255,.2); display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: var(--kh-s3); backdrop-filter: blur(8px); }
.kh-path-card__title { font-size: 22px; font-weight: 800; margin: 0 0 4px; color: var(--color-on-dark); letter-spacing: -.01em; }
.kh-path-card__tag { display: inline-block; padding: 3px 10px; background: rgba(255,255,255,.25); border-radius: var(--kh-r-pill); font-size: 11.5px; font-weight: 700; letter-spacing: .04em; margin-bottom: var(--kh-s3); }
.kh-path-card__body { padding: var(--kh-s6); flex: 1; display: flex; flex-direction: column; }
.kh-path-card__desc { color: var(--kh-text); font-size: 14.5px; line-height: 1.55; margin-bottom: var(--kh-s4); }
.kh-path-card__features { list-style: none; padding: 0; margin: 0 0 var(--kh-s5); }
.kh-path-card__features li { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--kh-text); padding: 4px 0; }
.kh-path-card__features li i { color: var(--kh-success); font-size: 11px; flex-shrink: 0; }
.kh-path-card__cta { margin-top: auto; display: inline-flex; align-items: center; gap: 6px; color: var(--track-color, var(--kh-primary)); font-weight: 700; font-size: 14px; }
.kh-path-card__cta i { transition: transform .15s var(--kh-ease); }
.kh-path-card:hover .kh-path-card__cta i { transform: translateX(3px); }

/* ── Feature card ──────────────────────────────────────────────────── */
.kh-feature {
    padding: var(--kh-s6); border-radius: var(--kh-r-lg);
    background: var(--color-on-dark); border: 1px solid var(--kh-line);
    transition: all .2s var(--kh-ease);
}
.kh-feature:hover { transform: translateY(-3px); box-shadow: var(--kh-shadow-md); border-color: var(--kh-primary); }
.kh-feature__icon { margin-bottom: var(--kh-s4); }
.kh-feature__title { font-size: 18px; font-weight: 700; color: var(--kh-ink); margin: 0 0 6px; }
.kh-feature__desc { color: var(--kh-muted); font-size: 14px; line-height: 1.55; margin: 0; }

/* ── Testimonial ───────────────────────────────────────────────────── */
.kh-testimonial {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg);
    padding: var(--kh-s8); position: relative;
}
.kh-testimonial__rating { color: var(--kh-warning); font-size: 14px; margin-bottom: var(--kh-s3); }
.kh-testimonial__quote { font-size: 15px; line-height: 1.7; color: var(--kh-text); margin: 0 0 var(--kh-s5); font-style: italic; }
.kh-testimonial__author { display: flex; align-items: center; gap: var(--kh-s3); }
.kh-testimonial__avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--kh-primary), var(--kh-accent)); color: var(--color-on-dark); display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; }
.kh-testimonial__name { font-size: 14.5px; font-weight: 700; color: var(--kh-ink); }
.kh-testimonial__title { font-size: 12.5px; color: var(--kh-muted); }

/* ── FAQ accordion ─────────────────────────────────────────────────── */
.kh-faq { max-width: 820px; margin: 0 auto; }
.kh-faq__item {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-md);
    margin-bottom: var(--kh-s3); overflow: hidden;
    transition: border-color .15s var(--kh-ease);
}
.kh-faq__item[open] { border-color: var(--kh-primary); box-shadow: var(--kh-shadow-sm); }
.kh-faq__q {
    padding: var(--kh-s5) var(--kh-s6); cursor: pointer; list-style: none;
    display: flex; align-items: center; justify-content: space-between; gap: var(--kh-s3);
    font-weight: 600; font-size: 15.5px; color: var(--kh-ink);
}
.kh-faq__q::-webkit-details-marker { display: none; }
.kh-faq__q::after {
    content: '\f067'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    font-size: 12px; color: var(--kh-muted); transition: transform .2s var(--kh-ease);
}
.kh-faq__item[open] .kh-faq__q::after { content: '\f068'; color: var(--kh-primary); }
.kh-faq__a { padding: 0 var(--kh-s6) var(--kh-s5); color: var(--kh-text); line-height: 1.7; font-size: 14.5px; }

/* ── Pricing tier ──────────────────────────────────────────────────── */
.kh-pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--kh-s5); align-items: stretch; }
.kh-tier {
    background: var(--color-on-dark); border: 2px solid var(--kh-line); border-radius: var(--kh-r-lg);
    padding: var(--kh-s8); display: flex; flex-direction: column; position: relative;
    transition: all .2s var(--kh-ease);
}
.kh-tier:hover { border-color: var(--kh-line); transform: translateY(-3px); box-shadow: var(--kh-shadow-lg); }
.kh-tier--featured {
    border-color: var(--kh-primary); transform: scale(1.04);
    box-shadow: var(--kh-shadow-glow);
}
.kh-tier--featured:hover { transform: scale(1.04) translateY(-3px); }
.kh-tier__badge {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    background: var(--kh-primary); color: var(--color-on-dark); padding: 5px 16px;
    border-radius: var(--kh-r-pill); font-size: 11.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
}
.kh-tier__name { font-size: 18px; font-weight: 800; color: var(--kh-ink); margin: 0 0 6px; }
.kh-tier__desc { font-size: 13.5px; color: var(--kh-muted); margin: 0 0 var(--kh-s5); }
.kh-tier__price { display: flex; align-items: baseline; gap: 6px; margin-bottom: var(--kh-s4); }
.kh-tier__amount { font-size: 36px; font-weight: 800; color: var(--kh-ink); letter-spacing: -.02em; line-height: 1; }
.kh-tier__period { font-size: 14px; color: var(--kh-muted); }
.kh-tier__feats { list-style: none; padding: 0; margin: 0 0 var(--kh-s6); flex: 1; }
.kh-tier__feats li { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; font-size: 14px; color: var(--kh-text); }
.kh-tier__feats li i { color: var(--kh-success); font-size: 12px; margin-top: 5px; flex-shrink: 0; }
.kh-tier__feats li.is-disabled { color: var(--kh-muted); }
.kh-tier__feats li.is-disabled i { color: var(--kh-line); }

/* ── CTA block ─────────────────────────────────────────────────────── */
.kh-cta-block {
    background: linear-gradient(135deg, var(--kh-primary) 0%, var(--color-warning-deep) 100%);
    border-radius: var(--kh-r-xl); padding: var(--kh-s16); color: var(--color-on-dark);
    text-align: center; position: relative; overflow: hidden;
}
.kh-cta-block::before {
    content: ''; position: absolute; top: -50%; right: -50%;
    width: 100%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,.12), transparent 60%);
    pointer-events: none;
}
.kh-cta-block__inner { position: relative; max-width: 720px; margin: 0 auto; }
.kh-cta-block h2 { color: var(--color-on-dark); font-size: clamp(28px, 3.6vw, 38px); margin-bottom: var(--kh-s4); }
.kh-cta-block p { color: rgba(255,255,255,.92); font-size: 16px; margin-bottom: var(--kh-s6); line-height: 1.6; }

/* ── Logos / social proof bar ──────────────────────────────────────── */
.kh-proof-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--kh-s10); align-items: center; opacity: .7; }
.kh-proof-bar__item { font-size: 13px; color: var(--kh-muted); font-weight: 600; }

/* ── Step / How it works ───────────────────────────────────────────── */
.kh-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--kh-s6); position: relative; }
.kh-step {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg);
    padding: var(--kh-s6); text-align: center; position: relative;
}
.kh-step__num {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--kh-primary); color: var(--color-on-dark);
    font-size: 18px; font-weight: 800;
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: var(--kh-s4); box-shadow: var(--kh-shadow-glow);
}
.kh-step__title { font-size: 17px; font-weight: 700; color: var(--kh-ink); margin: 0 0 6px; }
.kh-step__desc { font-size: 14px; color: var(--kh-muted); line-height: 1.6; margin: 0; }

/* ── Comparison check ──────────────────────────────────────────────── */
.kh-compare { display: grid; grid-template-columns: 1fr 1fr; gap: var(--kh-s4); }
.kh-compare__col { background: var(--color-on-dark); border-radius: var(--kh-r-lg); padding: var(--kh-s6); border: 1px solid var(--kh-line); }
.kh-compare__col--us { border-color: var(--kh-primary); box-shadow: var(--kh-shadow-md); }
.kh-compare__col h4 { margin: 0 0 var(--kh-s4); font-size: 17px; font-weight: 800; }
.kh-compare__col--them h4 { color: var(--kh-muted); }
.kh-compare__col--us h4 { color: var(--kh-primary); }
.kh-compare__list { list-style: none; padding: 0; margin: 0; }
.kh-compare__list li { padding: 8px 0; font-size: 13.5px; display: flex; align-items: flex-start; gap: 8px; line-height: 1.5; }
.kh-compare__list li i { font-size: 13px; margin-top: 3px; flex-shrink: 0; }
.kh-compare__col--us li i { color: var(--kh-success); }
.kh-compare__col--them li i { color: var(--kh-muted); }
@media (max-width: 640px) { .kh-compare { grid-template-columns: 1fr; } }

/* ── Misc utilities ────────────────────────────────────────────────── */
.kh-badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: var(--kh-r-pill);
    font-size: 11.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
}
.kh-badge--primary { background: var(--kh-primary-soft); color: var(--kh-primary); }
.kh-badge--success { background: var(--kh-success-soft); color: var(--kh-success); }
.kh-badge--warning { background: var(--kh-warning-soft); color: var(--kh-warning); }
.kh-badge--info    { background: var(--kh-info-soft);    color: var(--kh-info); }

.kh-text-center { text-align: center; }
.kh-mt-4 { margin-top: var(--kh-s4); }
.kh-mt-6 { margin-top: var(--kh-s6); }
.kh-mt-8 { margin-top: var(--kh-s8); }
.kh-mb-4 { margin-bottom: var(--kh-s4); }
.kh-mb-6 { margin-bottom: var(--kh-s6); }
.kh-mb-8 { margin-bottom: var(--kh-s8); }

@media (max-width: 768px) {
    .kh-tier--featured { transform: none; }
    .kh-tier--featured:hover { transform: translateY(-3px); }
    .kh-cta-block { padding: var(--kh-s10); }
}

/* ════════════════════════════════════════════════════════════════════ */
/* Learning Paths — Smart filter + comparison                            */
/* ════════════════════════════════════════════════════════════════════ */

/* ── Filter ─────────────────────────────────────────────────────────── */
.kh-path-filters {
    background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg);
    padding: var(--kh-s5); margin-bottom: var(--kh-s8);
    box-shadow: var(--kh-shadow-sm);
}
.kh-pfilter-row {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--kh-s5); margin-bottom: var(--kh-s4);
}
.kh-pfilter__lbl {
    display: block; font-size: 11.5px; font-weight: 700; color: var(--kh-muted);
    text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px;
}
.kh-pfilter__chips { display: flex; flex-wrap: wrap; gap: 6px; }
.kh-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 12px; border-radius: var(--kh-r-pill);
    font-size: 12.5px; font-weight: 600; color: var(--kh-text);
    background: var(--kh-bg-soft); border: 1px solid transparent;
    cursor: pointer; transition: all .15s var(--kh-ease); user-select: none;
}
.kh-chip i { font-size: 11px; opacity: .8; }
.kh-chip:hover { background: var(--color-on-dark); border-color: var(--kh-line); }
.kh-chip input { position: absolute; opacity: 0; pointer-events: none; }
.kh-chip.is-active { background: var(--kh-primary); color: var(--color-on-dark); border-color: var(--kh-primary); box-shadow: 0 2px 8px rgba(20, 184, 166,.25); }
.kh-chip.is-active i { opacity: 1; }
.kh-pfilter-actions {
    display: flex; align-items: center; gap: 8px;
    padding-top: var(--kh-s4); border-top: 1px solid var(--kh-line-soft);
}

/* ── Recommended block ──────────────────────────────────────────────── */
.kh-recommended {
    background: linear-gradient(135deg, var(--color-accent-soft) 0%, var(--color-warning-soft) 100%);
    border: 1.5px solid var(--color-accent); border-radius: var(--kh-r-xl);
    padding: var(--kh-s6); margin-bottom: var(--kh-s8);
    display: grid; grid-template-columns: 56px 1fr auto; gap: var(--kh-s5);
    align-items: center;
}
.kh-recommended__icon {
    width: 56px; height: 56px; border-radius: var(--kh-r-md);
    background: linear-gradient(135deg, var(--kh-primary), var(--kh-accent)); color: var(--color-on-dark);
    display: flex; align-items: center; justify-content: center; font-size: 24px;
    box-shadow: 0 8px 20px rgba(79,70,229,.3);
}
.kh-recommended__lbl { font-size: 11.5px; font-weight: 700; color: var(--kh-accent); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.kh-recommended__title { font-size: 20px; font-weight: 800; color: var(--kh-ink); margin: 0 0 4px; }
.kh-recommended__desc { font-size: 14px; color: var(--kh-text); margin: 0; line-height: 1.5; }
@media (max-width: 720px) {
    .kh-recommended { grid-template-columns: 1fr; gap: var(--kh-s3); text-align: center; }
    .kh-recommended__icon { margin: 0 auto; }
}

/* ── Rich path card (with locked / unlocked / free state) ─────────── */
.kh-rpath-card {
    position: relative; background: var(--color-on-dark); border: 1px solid var(--kh-line);
    border-radius: var(--kh-r-lg); overflow: hidden;
    transition: all .25s var(--kh-ease); display: flex; flex-direction: column;
}
.kh-rpath-card:hover { transform: translateY(-4px); box-shadow: var(--kh-shadow-xl); border-color: transparent; }
.kh-rpath-card__top {
    padding: var(--kh-s6) var(--kh-s6) var(--kh-s4);
    background: linear-gradient(135deg, var(--track-color, var(--kh-primary)) 0%, color-mix(in srgb, var(--track-color, var(--kh-primary)) 70%, var(--color-ink)) 100%);
    color: var(--color-on-dark); position: relative;
}
.kh-rpath-card__access {
    position: absolute; top: 14px; right: 14px;
    padding: 4px 10px; border-radius: var(--kh-r-pill);
    font-size: 10.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em;
    backdrop-filter: blur(8px); display: inline-flex; align-items: center; gap: 4px;
}
.kh-rpath-card__access--unlocked { background: rgba(22,163,74,.95); color: var(--color-on-dark); }
.kh-rpath-card__access--free     { background: rgba(255,255,255,.95); color: var(--track-color); }
.kh-rpath-card__access--locked   { background: rgba(0,0,0,.45); color: var(--color-on-dark); }
.kh-rpath-card__icon { width: 48px; height: 48px; border-radius: var(--kh-r-md); background: rgba(255,255,255,.22); display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 12px; }
.kh-rpath-card__title { font-size: 22px; font-weight: 800; color: var(--color-on-dark); margin: 0 0 4px; letter-spacing: -.01em; }
.kh-rpath-card__tag { display: inline-block; padding: 3px 10px; background: rgba(255,255,255,.22); border-radius: var(--kh-r-pill); font-size: 11px; font-weight: 700; letter-spacing: .04em; }
.kh-rpath-card__meta {
    display: flex; flex-wrap: wrap; gap: 10px;
    padding: var(--kh-s3) var(--kh-s6);
    background: var(--kh-bg-soft); border-bottom: 1px solid var(--kh-line);
    font-size: 12px; color: var(--kh-muted);
}
.kh-rpath-card__meta strong { color: var(--kh-ink); }
.kh-rpath-card__body { padding: var(--kh-s5) var(--kh-s6); flex: 1; display: flex; flex-direction: column; }
.kh-rpath-card__desc { font-size: 14.5px; color: var(--kh-text); line-height: 1.55; margin: 0 0 var(--kh-s4); }
.kh-rpath-card__feats { list-style: none; padding: 0; margin: 0 0 var(--kh-s5); }
.kh-rpath-card__feats li { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--kh-text); padding: 4px 0; }
.kh-rpath-card__feats li i { color: var(--track-color, var(--kh-primary)); font-size: 11px; flex-shrink: 0; }
.kh-rpath-card__cta { margin-top: auto; }
.kh-rpath-card__cta .kh-btn { width: 100%; }
.kh-rpath-card.is-locked { opacity: .85; }
.kh-rpath-card.is-locked .kh-rpath-card__top { background: linear-gradient(135deg, var(--color-muted), var(--color-text)); }
.kh-rpath-card.is-locked .kh-rpath-card__feats li i { color: var(--color-muted); }

/* Hide cards filtered out via JS */
.kh-rpath-card[hidden] { display: none !important; }

.kh-paths-empty {
    grid-column: 1 / -1; padding: var(--kh-s12);
    background: var(--kh-bg-soft); border: 1px dashed var(--kh-line);
    border-radius: var(--kh-r-lg); text-align: center;
}
.kh-paths-empty i { font-size: 32px; color: var(--kh-muted); margin-bottom: var(--kh-s3); display: block; }

/* ── Comparison table ───────────────────────────────────────────────── */
.kh-pcompare-wrap { background: var(--color-on-dark); border: 1px solid var(--kh-line); border-radius: var(--kh-r-lg); overflow: hidden; box-shadow: var(--kh-shadow-sm); }
.kh-pcompare { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.kh-pcompare thead { background: var(--kh-bg-soft); }
.kh-pcompare th { text-align: left; padding: 14px 16px; font-size: 12px; font-weight: 800; color: var(--kh-muted); text-transform: uppercase; letter-spacing: .06em; border-bottom: 1px solid var(--kh-line); }
.kh-pcompare td { padding: 16px; border-bottom: 1px solid var(--kh-line-soft); vertical-align: top; color: var(--kh-text); }
.kh-pcompare tr:last-child td { border-bottom: none; }
.kh-pcompare tr:hover td { background: var(--kh-bg-soft); }
.kh-pcompare__path { display: flex; align-items: center; gap: 12px; }
.kh-pcompare__icon { width: 40px; height: 40px; border-radius: var(--kh-r-md); display: flex; align-items: center; justify-content: center; font-size: 17px; flex-shrink: 0; }
.kh-pcompare__feats { list-style: disc; padding-left: 18px; margin: 0; font-size: 13px; }
.kh-pcompare__feats li { padding: 2px 0; }

@media (max-width: 768px) {
    .kh-pcompare thead { display: none; }
    .kh-pcompare, .kh-pcompare tbody, .kh-pcompare tr, .kh-pcompare td { display: block; width: 100%; }
    .kh-pcompare tr { border-bottom: 1px solid var(--kh-line); padding: var(--kh-s4); }
    .kh-pcompare td { border: none; padding: 6px 0; }
    .kh-pcompare td::before { content: attr(data-label) " · "; font-weight: 700; color: var(--kh-muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; }
    .kh-pcompare td[data-label="Lộ trình"]::before { display: none; }
}

/* ═══════════════════════════════════════════════════════════════════
   Foundation smart-landing additions
   ═══════════════════════════════════════════════════════════════════ */

/* Free preview strip */
.fd-free-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fd-free-card { display: flex; flex-direction: column; gap: 14px; padding: 32px 28px; background: var(--color-on-dark); border: 1.5px solid var(--kh-line); border-radius: 16px; text-decoration: none; color: inherit; transition: transform .2s var(--kh-ease), box-shadow .2s var(--kh-ease), border-color .2s var(--kh-ease); position: relative; }
.fd-free-card:hover { transform: translateY(-4px); box-shadow: var(--kh-shadow-lg); border-color: var(--fd-accent, var(--color-primary)); }
.fd-free-card__icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.fd-free-card__count { font-size: 30px; font-weight: 800; color: var(--kh-ink); display: flex; align-items: baseline; gap: 10px; letter-spacing: -.02em; line-height: 1; }
.fd-free-card__count span { padding: 3px 9px; border-radius: 999px; background: var(--color-secondary-soft) !important; color: var(--color-secondary-deep) !important; font-size: 11px !important; letter-spacing: .06em; }
.fd-free-card__label { font-size: 18px; font-weight: 700; color: var(--kh-ink); line-height: 1.35; }
.fd-free-card__sub { font-size: 14.5px; color: var(--kh-muted); line-height: 1.55; }
.fd-free-card__cta { margin-top: auto; padding-top: 6px; font-size: 14.5px; font-weight: 700; color: var(--fd-accent, var(--color-primary)); display: inline-flex; align-items: center; gap: 8px; }
.fd-free-card:hover .fd-free-card__cta i { transform: translateX(4px); }
.fd-free-card__cta i { transition: transform .2s var(--kh-ease); }

/* Interactive roadmap */
.fd-roadmap { background: var(--color-on-dark); border: 1.5px solid var(--kh-line); border-radius: 18px; padding: 40px; box-shadow: var(--kh-shadow-sm); }
.fd-roadmap__track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; margin-bottom: 32px; }
.fd-roadmap__track::before { content: ''; position: absolute; top: 30px; left: 10%; right: 10%; height: 3px; background: linear-gradient(to right, var(--color-secondary), var(--color-primary), var(--color-warning-deep), var(--color-warning), var(--color-warning)); opacity: .35; z-index: 0; border-radius: 999px; }
.fd-roadmap__node { position: relative; z-index: 1; background: transparent; border: none; cursor: pointer; padding: 0; display: flex; flex-direction: column; align-items: center; gap: 10px; font-family: inherit; }
.fd-roadmap__badge { width: 60px; height: 60px; border-radius: 50%; background: var(--color-on-dark); border: 2.5px solid var(--color-line); color: var(--color-muted); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px; letter-spacing: -.01em; transition: all .25s var(--kh-ease); }
.fd-roadmap__node:hover .fd-roadmap__badge { border-color: var(--fd-c); color: var(--fd-c); transform: scale(1.05); }
.fd-roadmap__node.is-active .fd-roadmap__badge { background: var(--fd-c); border-color: var(--fd-c); color: var(--color-on-dark); box-shadow: 0 10px 28px color-mix(in srgb, var(--fd-c) 40%, transparent); transform: scale(1.15); }
.fd-roadmap__weeks { font-size: 12.5px; font-weight: 700; color: var(--kh-muted); text-transform: uppercase; letter-spacing: .06em; }
.fd-roadmap__node.is-active .fd-roadmap__weeks { color: var(--fd-c); }
.fd-roadmap__panels { position: relative; min-height: 160px; }
.fd-roadmap__panel { display: none; padding: 28px 4px 4px; border-top: 1.5px dashed var(--kh-line); animation: fd-fade .3s var(--kh-ease); }
.fd-roadmap__panel.is-active { display: block; }
@keyframes fd-fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.fd-roadmap__panel-head { display: flex; align-items: center; gap: 18px; margin-bottom: 14px; }
.fd-roadmap__panel-badge { width: 52px; height: 52px; border-radius: 12px; color: var(--color-on-dark); font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; letter-spacing: -.01em; }
.fd-roadmap__panel-title { font-size: 20px; font-weight: 700; color: var(--kh-ink); letter-spacing: -.01em; line-height: 1.3; }
.fd-roadmap__panel-meta { font-size: 14.5px; color: var(--kh-muted); margin-top: 4px; font-weight: 500; }
.fd-roadmap__panel-desc { margin: 0; font-size: 16.5px; color: var(--kh-text); line-height: 1.7; max-width: 720px; }

/* Plans compare 3-col */
.fd-plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; padding-top: 14px; }
.fd-plan { position: relative; background: var(--color-on-dark); border: 2px solid var(--kh-line); border-radius: 18px; padding: 36px 30px; display: flex; flex-direction: column; gap: 20px; transition: transform .2s var(--kh-ease), box-shadow .2s var(--kh-ease); }
.fd-plan.is-highlight { border-color: var(--fd-c); transform: translateY(-8px); box-shadow: 0 18px 44px rgba(15, 23, 42, .1); }
.fd-plan:hover { transform: translateY(-4px); box-shadow: var(--kh-shadow-lg); }
.fd-plan.is-highlight:hover { transform: translateY(-12px); box-shadow: 0 22px 52px rgba(15, 23, 42, .14); }
.fd-plan__tag { position: absolute; top: -14px; left: 30px; padding: 6px 16px; border-radius: 999px; color: var(--color-on-dark); font-size: 11.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; box-shadow: 0 4px 12px color-mix(in srgb, var(--fd-c) 30%, transparent); }
.fd-plan__name { font-size: 20px; font-weight: 800; color: var(--kh-ink); letter-spacing: -.01em; }
.fd-plan__price { display: flex; align-items: baseline; gap: 6px; padding-bottom: 18px; border-bottom: 1px solid var(--kh-line); }
.fd-plan__amount { font-size: 48px; font-weight: 800; color: var(--kh-ink); line-height: 1; letter-spacing: -.03em; }
.fd-plan__unit { font-size: 16px; color: var(--kh-muted); font-weight: 500; }
.fd-plan__features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.fd-plan__features li { display: flex; align-items: flex-start; gap: 11px; font-size: 15px; line-height: 1.55; }
.fd-plan__features li.is-ok { color: var(--kh-text); font-weight: 500; }
.fd-plan__features li.is-no { color: var(--color-muted); }
.fd-plan__features li.is-ok i { color: var(--color-secondary); background: var(--color-secondary-soft); }
.fd-plan__features li.is-no i { color: var(--color-line); background: var(--color-soft); }
.fd-plan__features li i { width: 20px; height: 20px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; margin-top: 2px; flex-shrink: 0; }
.fd-plan__cta { margin-top: 6px; justify-content: center; padding: 16px 24px; font-size: 15.5px; font-weight: 700; }

@media (max-width: 900px) {
    .fd-free-strip { grid-template-columns: 1fr; gap: 16px; }
    .fd-free-card { padding: 24px 22px; }
    .fd-free-card__count { font-size: 26px; }
    .fd-free-card__label { font-size: 16.5px; }
    .fd-roadmap { padding: 22px 18px; }
    .fd-roadmap__track { gap: 4px; margin-bottom: 22px; }
    .fd-roadmap__badge { width: 46px; height: 46px; font-size: 14px; }
    .fd-roadmap__weeks { font-size: 10.5px; letter-spacing: .03em; }
    .fd-roadmap__track::before { top: 22px; }
    .fd-roadmap__panel-head { gap: 12px; }
    .fd-roadmap__panel-badge { width: 44px; height: 44px; font-size: 15px; border-radius: 10px; }
    .fd-roadmap__panel-title { font-size: 17px; }
    .fd-roadmap__panel-desc { font-size: 15px; }
    .fd-plans { grid-template-columns: 1fr; gap: 16px; }
    .fd-plan { padding: 28px 24px; }
    .fd-plan.is-highlight { transform: none; }
    .fd-plan.is-highlight:hover { transform: translateY(-4px); }
    .fd-plan__amount { font-size: 40px; }
}

/* ─── Audit fixes (homepage hero) — token-based replacements ─── */
.kh-h1__accent {
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.kh-hero__rating {
    display: flex;
    align-items: center;
    gap: 6px;
}
.kh-hero__stars { color: var(--color-warning); }

.kh-hero__visual-inner {
    position: relative;
    text-align: center;
    padding: 32px;
}
.kh-hero__cap {
    font-size: 120px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: .85;
}
.kh-hero__chip {
    position: absolute;
    background: var(--color-on-dark);
    padding: 12px 16px;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, .12);
    font-size: 12.5px;
    font-weight: 600;
    color: var(--color-ink);
}
.kh-hero__chip--tl { top: 20px; left: 20px; }
.kh-hero__chip--br { bottom: 20px; right: 20px; }
.kh-hero__chip-ic--success { color: var(--color-secondary); margin-right: 6px; }
.kh-hero__chip-ic--warning { color: var(--color-warning); margin-right: 6px; }

/* Stats section */
.kh-section--stats {
    padding: var(--kh-s10) 0;
    border-bottom: 1px solid var(--kh-line);
}
.kh-stats__title {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--kh-muted);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: var(--kh-s6);
}

/* Pricing tier full-width button — allow wrap so long labels don't overflow */
.kh-btn.kh-btn--full {
    width: 100%; justify-content: center;
    white-space: normal; line-height: 1.3;
    padding-left: var(--kh-s4); padding-right: var(--kh-s4);
    text-align: center;
}

/* Pricing note (after pricing grid) */
.kh-pricing-note {
    text-align: center;
    font-size: 13px;
    color: var(--kh-muted);
    margin-top: var(--kh-s6);
}
.kh-pricing-note a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: underline;
}

/* Final CTA section spacing */
.kh-section--final-cta { padding-bottom: var(--kh-s24); }

/* Section head with extra top margin (between testimonials + comparison) */
.kh-section-head--spaced { margin-top: var(--kh-s16); }

/* Crown icon spacing in compare column */
.kh-compare__crown { margin-right: 6px; }

/* ════════════════════════════════════════════════════════════════════
   v3 — Homepage refresh: trust-bar, free-preview, hero mockup,
   pricing 4-col, cta-block actions, path-card track variants
   ════════════════════════════════════════════════════════════════════ */

/* ── Path card — color via CSS class (no hex in PHP) ────────────────── */
.kh-path-card.kh-path-card--foundation { --track-color: var(--kh-track-foundation); }
.kh-path-card.kh-path-card--ielts      { --track-color: var(--kh-track-ielts); }
.kh-path-card.kh-path-card--toeic      { --track-color: var(--kh-track-toeic); }
.kh-path-card.kh-path-card--shadowing  { --track-color: var(--kh-track-shadowing); }

/* ── CTA block actions (no inline style) ────────────────────────────── */
.kh-cta-block__actions {
    display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}
.kh-btn--on-dark {
    background: transparent;
    color: var(--color-on-dark);
    border-color: rgba(255, 255, 255, .4);
}
.kh-btn--on-dark:hover {
    background: rgba(255, 255, 255, .12);
    color: var(--color-on-dark);
    border-color: var(--color-on-dark);
}

.kh-btn--accent {
    background: var(--color-accent); color: var(--color-on-dark);
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(6, 182, 212, .25);
}
.kh-btn--accent:hover {
    background: var(--color-accent-deep, var(--color-accent));
    border-color: var(--color-accent-deep, var(--color-accent));
    color: var(--color-on-dark);
    transform: translateY(-2px);
}

/* ── Trust bar (replaces stats section) ─────────────────────────────── */
.kh-section--trust {
    padding: var(--kh-s10) 0;
    border-bottom: 1px solid var(--kh-line);
    background: var(--color-on-dark);
}
.kh-trust-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--kh-s6);
    align-items: center;
}
.kh-trust-bar__item {
    display: flex; align-items: center; gap: var(--kh-s3);
}
.kh-trust-bar__icon {
    width: 40px; height: 40px;
    border-radius: var(--kh-r-md);
    background: var(--kh-primary-soft);
    color: var(--kh-primary);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 18px; flex-shrink: 0;
}
.kh-trust-bar__strong {
    font-size: 14.5px; font-weight: 700;
    color: var(--kh-ink); line-height: 1.3;
}
.kh-trust-bar__sub {
    font-size: 12.5px; color: var(--kh-muted);
    margin-top: 2px; line-height: 1.4;
}

/* ── Free preview grid ──────────────────────────────────────────────── */
.kh-free-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--kh-s5);
}
.kh-free-card {
    --card-accent: var(--kh-primary);
    --card-soft:   var(--kh-primary-soft);
    display: flex; flex-direction: column; gap: 12px;
    padding: var(--kh-s6);
    background: var(--color-on-dark);
    border: 1.5px solid var(--kh-line);
    border-radius: var(--kh-r-lg);
    text-decoration: none; color: inherit;
    transition: transform .2s var(--kh-ease), box-shadow .2s var(--kh-ease), border-color .2s var(--kh-ease);
    position: relative;
}
.kh-free-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--kh-shadow-lg);
    border-color: var(--card-accent);
    color: inherit;
}
.kh-free-card--primary   { --card-accent: var(--color-primary);   --card-soft: var(--color-primary-soft); }
.kh-free-card--secondary { --card-accent: var(--color-secondary); --card-soft: var(--color-secondary-soft); }
.kh-free-card--accent    { --card-accent: var(--color-accent);    --card-soft: var(--color-accent-soft); }
.kh-free-card--warning   { --card-accent: var(--color-warning);   --card-soft: var(--color-warning-soft); }

.kh-free-card__icon {
    width: 48px; height: 48px;
    border-radius: var(--kh-r-md);
    background: var(--card-soft);
    color: var(--card-accent);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.kh-free-card__count {
    font-size: clamp(24px, 2.6vw, 30px); font-weight: 800;
    color: var(--kh-ink);
    display: flex; align-items: baseline; gap: 8px;
    letter-spacing: -.02em; line-height: 1;
    flex-wrap: wrap;
}
.kh-free-card__count span {
    padding: 3px 9px; border-radius: var(--kh-r-pill);
    background: var(--card-soft); color: var(--card-accent);
    font-size: 11px; letter-spacing: .06em;
    font-weight: 700; text-transform: uppercase;
}
.kh-free-card__label {
    font-size: 16px; font-weight: 700;
    color: var(--kh-ink); line-height: 1.35;
}
.kh-free-card__sub {
    font-size: 13.5px; color: var(--kh-muted); line-height: 1.5;
}
.kh-free-card__cta {
    margin-top: auto; padding-top: 6px;
    font-size: 13.5px; font-weight: 700;
    color: var(--card-accent);
    display: inline-flex; align-items: center; gap: 6px;
}
.kh-free-card__cta i { transition: transform .15s var(--kh-ease); }
.kh-free-card:hover .kh-free-card__cta i { transform: translateX(4px); }

/* ── Hero — AI Writing score mockup ─────────────────────────────────── */
.kh-hero__visual {
    /* Override gradient — let mockup dominate */
    background: linear-gradient(135deg, var(--kh-primary-soft) 0%, var(--kh-accent-soft) 100%);
    padding: var(--kh-s5);
    aspect-ratio: auto;
    min-height: 380px;
    display: flex; align-items: center; justify-content: center;
}
.kh-mock {
    width: 100%; max-width: 380px;
    background: var(--color-on-dark);
    border-radius: var(--kh-r-lg);
    box-shadow: 0 24px 56px rgba(15, 23, 42, .18);
    overflow: hidden;
    font-family: var(--kh-font);
    position: relative;
    z-index: 1;
}
.kh-mock__head {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--kh-line);
    background: var(--kh-bg-soft);
}
.kh-mock__dots { display: flex; gap: 5px; }
.kh-mock__dots span {
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--kh-line);
}
.kh-mock__dots span:first-child { background: var(--color-warning); }
.kh-mock__dots span:nth-child(2) { background: var(--color-secondary); }
.kh-mock__dots span:last-child { background: var(--color-primary); }
.kh-mock__title {
    font-size: 12.5px; font-weight: 700;
    color: var(--kh-muted); display: flex; align-items: center; gap: 6px;
}
.kh-mock__title i { color: var(--kh-primary); }

.kh-mock__body { padding: 20px 18px; }
.kh-mock__band {
    text-align: center;
    padding: 14px;
    background: linear-gradient(135deg, var(--kh-primary-soft), var(--kh-accent-soft));
    border-radius: var(--kh-r-md);
    margin-bottom: 16px;
}
.kh-mock__band-label {
    font-size: 11px; font-weight: 700;
    color: var(--kh-muted);
    text-transform: uppercase; letter-spacing: .08em;
}
.kh-mock__band-value {
    font-size: 48px; font-weight: 800;
    color: var(--kh-primary);
    letter-spacing: -.02em; line-height: 1;
    margin: 6px 0 4px;
}
.kh-mock__band-trend {
    font-size: 11.5px; color: var(--color-secondary);
    font-weight: 600;
}
.kh-mock__criteria { display: flex; flex-direction: column; gap: 10px; }
.kh-mock__crit-label {
    display: flex; justify-content: space-between;
    font-size: 12px; color: var(--kh-text);
    margin-bottom: 4px;
}
.kh-mock__crit-label strong {
    color: var(--kh-ink); font-weight: 700;
}
.kh-mock__bar {
    height: 6px; background: var(--kh-bg-soft);
    border-radius: var(--kh-r-pill); overflow: hidden;
}
.kh-mock__bar span {
    display: block; height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--kh-r-pill);
}

/* Override old static cap when present */
.kh-hero__cap { display: none; }
.kh-hero__visual-inner { display: contents; }

@media (max-width: 992px) {
    .kh-hero__visual { min-height: 320px; max-width: 460px; margin: 0 auto; }
    .kh-mock { max-width: 340px; }
}
@media (max-width: 480px) {
    .kh-mock__band-value { font-size: 40px; }
    .kh-mock__body { padding: 16px 14px; }
}

/* ── Pricing 4-col grid + variant chip + accent badge ───────────────── */
.kh-pricing-grid.kh-pricing-grid--4 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--kh-s5);
}
.kh-tier__variant {
    display: inline-block; margin-left: 4px;
    padding: 2px 8px; border-radius: var(--kh-r-pill);
    background: var(--kh-bg-soft);
    color: var(--kh-muted);
    font-size: 11px; font-weight: 700;
    letter-spacing: .04em; text-transform: uppercase;
    vertical-align: middle;
}
.kh-tier--accent {
    border-color: var(--color-accent);
}
.kh-tier--accent:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(6, 182, 212, .18);
}
.kh-tier__badge--accent {
    background: var(--color-accent);
}
.kh-tier__feats li.is-disabled i { color: var(--color-muted); }

@media (max-width: 768px) {
    .kh-pricing-grid.kh-pricing-grid--4 {
        grid-template-columns: 1fr;
    }
}