:root {
    --navy: #0f172a;
    --navy-soft: #172033;
    --teal: #14b8a6;
    --teal-dark: #0f8f83;
    --cyan: #22d3ee;
    --slate: #64748b;
    --text: #334155;
    --line: #dfe7ef;
    --background: #f1f5f9;
    --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: var(--white);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    margin: 0;
}
a { color: inherit; }
.kh-container { margin: 0 auto; max-width: 1180px; padding-left: 24px; padding-right: 24px; }
.kh-site-header {
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid rgba(223, 231, 239, .85);
    position: sticky;
    top: 0;
    z-index: 20;
}
.kh-nav { align-items: center; display: flex; height: 76px; justify-content: space-between; }
.kh-brand { align-items: center; display: inline-flex; flex: 0 0 auto; text-decoration: none; }
.kh-brand-lockup { align-items: center; display: inline-flex; gap: 10px; }
.kh-brand-mark { display: block; flex: 0 0 auto; height: 34px; width: 34px; }
.kh-brand-word { align-items: center; display: inline-flex; font-size: 21px; font-weight: 800; letter-spacing: 0; line-height: 1; }
.kh-brand-strong { color: var(--navy); }
.kh-brand-accent { color: var(--teal); }
.kh-brand-ai { align-items: center; background: linear-gradient(135deg, var(--teal), var(--cyan)); border-radius: 7px; color: var(--white); display: inline-flex; font-size: 11px; font-weight: 800; height: 20px; justify-content: center; margin-left: 7px; padding: 0 6px; }
.kh-nav-links { align-items: center; display: flex; gap: 30px; }
.kh-nav-links a, .kh-link-button {
    color: #475569;
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
}
.kh-nav-links a:hover, .kh-link-button:hover { color: var(--teal-dark); }
.kh-nav-actions { align-items: center; display: flex; gap: 18px; }
.kh-button {
    align-items: center;
    background: var(--teal);
    border: 1px solid var(--teal);
    border-radius: 7px;
    color: var(--white);
    display: inline-flex;
    font-size: 15px;
    font-weight: 750;
    gap: 16px;
    justify-content: center;
    line-height: 1.2;
    min-height: 50px;
    padding: 14px 21px;
    text-decoration: none;
    transition: background 150ms ease, border-color 150ms ease, transform 150ms ease;
}
.kh-button:hover { background: var(--teal-dark); border-color: var(--teal-dark); transform: translateY(-1px); }
.kh-button-small { font-size: 13px; min-height: 40px; padding: 10px 16px; }
.kh-button-full { display: flex; width: 100%; }
.kh-hero {
    background:
        linear-gradient(90deg, rgba(20, 184, 166, .05) 1px, transparent 1px) 0 0 / 58px 58px,
        linear-gradient(rgba(20, 184, 166, .05) 1px, transparent 1px) 0 0 / 58px 58px,
        linear-gradient(150deg, #fff 25%, #f7fcfb 100%);
    overflow: hidden;
    padding: 104px 0 112px;
}
.kh-hero-grid { align-items: center; display: grid; gap: 70px; grid-template-columns: minmax(0, 1.02fr) minmax(450px, .98fr); }
.kh-eyebrow {
    align-items: center;
    color: var(--teal-dark);
    display: inline-flex;
    font-size: 12px;
    font-weight: 800;
    gap: 9px;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.kh-eyebrow i { background: var(--teal); border-radius: 50%; box-shadow: 0 0 0 5px rgba(20, 184, 166, .12); height: 7px; width: 7px; }
.kh-hero h1 {
    color: var(--navy);
    font-size: clamp(44px, 5vw, 66px);
    letter-spacing: -.045em;
    line-height: 1.06;
    margin: 20px 0 24px;
    max-width: 670px;
}
.kh-hero h1 span { color: var(--teal-dark); }
.kh-hero-lead { color: #526177; font-size: 19px; line-height: 1.7; margin: 0; max-width: 630px; }
.kh-hero-actions { align-items: center; display: flex; gap: 25px; margin-top: 34px; }
.kh-text-link { color: var(--navy); font-size: 14px; font-weight: 750; text-decoration: none; }
.kh-text-link span { color: var(--teal-dark); margin-left: 8px; }
.kh-hero-reassurance { color: var(--slate); display: flex; flex-wrap: wrap; font-size: 12px; gap: 20px; margin-top: 28px; }
.kh-hero-reassurance b { color: var(--teal-dark); margin-right: 5px; }
.kh-product-preview { min-height: 520px; position: relative; }
.kh-preview-window {
    background: var(--white);
    border: 1px solid #d8e3ea;
    border-radius: 10px;
    box-shadow: 0 30px 70px rgba(15, 23, 42, .16);
    left: 22px;
    overflow: hidden;
    position: absolute;
    right: 0;
    top: 16px;
}
.kh-preview-topbar { align-items: center; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; padding: 18px 20px; }
.kh-preview-brand { align-items: center; display: flex; gap: 11px; }
.kh-preview-brand > span:last-child { display: grid; }
.kh-preview-brand strong { color: var(--navy); font-size: 13px; line-height: 1.35; }
.kh-preview-brand small { color: var(--slate); font-size: 10px; }
.kh-preview-mark, .kh-mini-mark {
    align-items: center;
    background: var(--navy);
    border-radius: 7px;
    color: var(--teal);
    display: inline-flex;
    font-weight: 850;
    justify-content: center;
}
.kh-preview-mark { height: 38px; width: 38px; }
.kh-mini-mark { flex: 0 0 28px; height: 28px; margin-top: 2px; width: 28px; }
.kh-preview-menu { color: #94a3b8; letter-spacing: 2px; }
.kh-preview-chat { background: #f8fafc; min-height: 335px; padding: 24px 20px; }
.kh-chat-date { color: #94a3b8; font-size: 9px; font-weight: 750; margin-bottom: 18px; text-align: center; text-transform: uppercase; }
.kh-bubble { border-radius: 8px; font-size: 12px; line-height: 1.55; padding: 12px 14px; }
.kh-bubble-user { background: var(--teal); color: var(--white); margin: 0 0 16px auto; max-width: 75%; }
.kh-bubble-ai { align-items: flex-start; background: var(--white); border: 1px solid var(--line); color: #475569; display: flex; gap: 11px; max-width: 88%; }
.kh-bubble-ai strong { color: var(--navy); }
.kh-source { border-top: 1px solid var(--line); color: var(--teal-dark); font-size: 10px; font-weight: 700; margin-top: 10px; padding-top: 8px; }
.kh-source span { margin-right: 4px; }
.kh-preview-suggestions { display: flex; flex-wrap: wrap; gap: 7px; margin: 15px 0 0 40px; }
.kh-preview-suggestions span { background: var(--white); border: 1px solid #cbd5e1; border-radius: 999px; color: #64748b; font-size: 9px; padding: 5px 9px; }
.kh-preview-input { align-items: center; background: var(--white); border-top: 1px solid var(--line); color: #94a3b8; display: flex; font-size: 11px; justify-content: space-between; padding: 14px 17px; }
.kh-preview-input b { align-items: center; background: var(--teal); border-radius: 6px; color: white; display: inline-flex; height: 28px; justify-content: center; width: 28px; }
.kh-floating-card {
    align-items: center;
    background: var(--white);
    border: 1px solid #dce6ed;
    border-radius: 8px;
    box-shadow: 0 14px 32px rgba(15, 23, 42, .12);
    display: flex;
    position: absolute;
    z-index: 3;
}
.kh-floating-card-top { display: grid; padding: 12px 18px; right: -45px; top: 75px; }
.kh-floating-card-top b { color: var(--teal-dark); font-size: 21px; line-height: 1.1; }
.kh-floating-card-top span, .kh-floating-card-bottom span { color: var(--slate); font-size: 9px; }
.kh-floating-card-bottom { bottom: 46px; gap: 10px; left: -24px; padding: 12px 16px; }
.kh-floating-card-bottom div { display: grid; }
.kh-floating-card-bottom b { color: var(--navy); font-size: 11px; }
.kh-check-circle { align-items: center; background: #ccfbf1; border-radius: 50%; color: var(--teal-dark) !important; display: inline-flex; font-size: 12px !important; font-weight: 800; height: 30px; justify-content: center; width: 30px; }
.kh-audience { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); padding: 25px 0; }
.kh-audience .kh-container { align-items: center; display: flex; justify-content: space-between; }
.kh-audience p { color: #94a3b8; font-size: 11px; font-weight: 750; letter-spacing: .055em; margin: 0; text-transform: uppercase; }
.kh-audience-list { align-items: center; color: #475569; display: flex; font-size: 13px; font-weight: 700; gap: 18px; }
.kh-audience-list i { background: #cbd5e1; border-radius: 50%; height: 3px; width: 3px; }
.kh-section { padding: 106px 0; scroll-margin-top: 75px; }
.kh-section-tinted { background: var(--background); }
.kh-section-heading { margin: 0 auto 56px; max-width: 720px; text-align: center; }
.kh-section-heading-left { margin-left: 0; text-align: left; }
.kh-section-heading h2, .kh-price-copy h2, .kh-final-cta h2 {
    color: var(--navy);
    font-size: clamp(32px, 4vw, 46px);
    letter-spacing: -.035em;
    line-height: 1.15;
    margin: 14px 0 15px;
}
.kh-section-heading p, .kh-price-copy > p { color: var(--slate); font-size: 16px; margin: 0; }
.kh-steps { display: grid; gap: 25px; grid-template-columns: repeat(3, 1fr); }
.kh-steps article { border-top: 2px solid #d9e4e9; padding: 25px 8px 0 0; position: relative; }
.kh-step-number { color: #b4c0ce; font-size: 11px; font-weight: 800; position: absolute; right: 4px; top: 25px; }
.kh-step-icon, .kh-feature-icon {
    align-items: center;
    background: #e8fbf8;
    border-radius: 7px;
    color: var(--teal-dark);
    display: inline-flex;
    font-size: 20px;
    font-weight: 700;
    height: 46px;
    justify-content: center;
    width: 46px;
}
.kh-steps h3, .kh-feature h3 { color: var(--navy); font-size: 18px; margin: 20px 0 8px; }
.kh-steps p, .kh-feature p { color: var(--slate); font-size: 14px; margin: 0; }
.kh-feature-grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
.kh-feature {
    background: var(--white);
    border: 1px solid #dfe7ef;
    border-radius: 8px;
    min-height: 245px;
    padding: 28px;
}
.kh-feature-wide { align-items: flex-start; display: grid; gap: 22px; grid-column: span 2; grid-template-columns: auto 1fr; }
.kh-feature-wide h3 { margin-top: 0; }
.kh-feature ul { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 18px 0 0; padding: 0; }
.kh-feature li { color: #475569; font-size: 12px; }
.kh-feature li::before { color: var(--teal-dark); content: "✓"; font-weight: 800; margin-right: 6px; }
.kh-feature-dark { background: var(--navy); border-color: var(--navy); }
.kh-feature-dark h3 { color: var(--white); }
.kh-feature-dark p { color: #a8b4c6; }
.kh-feature-dark .kh-feature-icon { background: rgba(20, 184, 166, .16); color: var(--cyan); }
.kh-model-section { background: #fff; }
.kh-model-grid { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; }
.kh-model-card { background: #fff; border: 1px solid #dce5ed; border-radius: 9px; box-shadow: 0 14px 36px rgba(15, 23, 42, .055); padding: 30px; }
.kh-model-card-recommended { border-color: #8edfd4; box-shadow: 0 16px 40px rgba(15, 148, 136, .09); }
.kh-model-card-heading { align-items: center; display: grid; gap: 13px; grid-template-columns: 46px minmax(0, 1fr) auto; }
.kh-model-icon { align-items: center; background: var(--navy); border-radius: 8px; color: var(--teal); display: inline-flex; font-size: 19px; font-weight: 850; height: 46px; justify-content: center; width: 46px; }
.kh-model-icon-key { background: #eef2f7; color: #475569; }
.kh-model-label { color: var(--teal-dark); display: block; font-size: 9px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.kh-model-card h3 { color: var(--navy); font-size: 18px; line-height: 1.25; margin: 3px 0 0; }
.kh-model-tag { background: #ccfbf1; border-radius: 999px; color: #0f766e; font-size: 9px; font-weight: 800; padding: 5px 9px; }
.kh-model-card > p { color: var(--slate); font-size: 13px; margin: 24px 0 20px; }
.kh-model-card > ul { display: grid; gap: 12px; list-style: none; margin: 0; padding: 0; }
.kh-model-card > ul li { color: #526177; font-size: 12px; line-height: 1.55; padding-left: 20px; position: relative; }
.kh-model-card > ul li::before { color: var(--teal-dark); content: "✓"; font-weight: 850; left: 0; position: absolute; }
.kh-model-card > ul strong { color: #334155; }
.kh-credit-explanation { background: #f0fdfa; border: 1px solid #b7e8df; border-radius: 7px; display: grid; gap: 3px; margin-top: 22px; padding: 13px 14px; }
.kh-credit-explanation.is-neutral { background: #f8fafc; border-color: #dce5ed; }
.kh-credit-explanation strong { color: var(--navy); font-size: 11px; }
.kh-credit-explanation span { color: #60756f; font-size: 10px; line-height: 1.55; }
.kh-credit-explanation.is-neutral span { color: var(--slate); }
.kh-model-source { color: var(--teal-dark); display: inline-flex; font-size: 10px; font-weight: 750; gap: 6px; margin-top: 15px; text-decoration: none; }
.kh-model-source:hover { text-decoration: underline; }
.kh-price-section { background: var(--navy); }
.kh-price-layout { align-items: center; display: grid; gap: 100px; grid-template-columns: 1fr 470px; }
.kh-price-copy h2 { color: var(--white); }
.kh-price-copy > p { color: #a9b5c7; max-width: 560px; }
.kh-price-proof { display: flex; gap: 48px; margin-top: 38px; }
.kh-price-proof div { display: grid; }
.kh-price-proof b { color: var(--white); font-size: 17px; }
.kh-price-proof span { color: #94a3b8; font-size: 11px; }
.kh-price-card { background: var(--white); border-radius: 9px; box-shadow: 0 24px 50px rgba(0, 0, 0, .22); padding: 36px; }
.kh-price-label { color: var(--teal-dark); font-size: 12px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.kh-price { align-items: center; display: flex; margin: 18px 0 12px; }
.kh-price > span { color: var(--navy); font-size: 23px; font-weight: 800; margin: 0 4px 26px 0; }
.kh-price > strong { color: var(--navy); font-size: 66px; letter-spacing: -.06em; line-height: 1; }
.kh-price > div { display: grid; margin-left: 12px; }
.kh-price > div b { color: var(--navy); font-size: 12px; }
.kh-price > div small { color: var(--slate); font-size: 10px; }
.kh-price-card > p { border-bottom: 1px solid var(--line); color: var(--slate); font-size: 13px; margin: 0; padding-bottom: 22px; }
.kh-price-card ul { display: grid; gap: 12px; list-style: none; margin: 24px 0 28px; padding: 0; }
.kh-price-card li { color: #475569; font-size: 13px; }
.kh-price-card li span { color: var(--teal-dark); font-weight: 800; margin-right: 9px; }
.kh-price-fineprint { color: #8491a3; display: block; font-size: 9.5px; line-height: 1.5; margin: 12px auto 0; max-width: 340px; text-align: center; }
.kh-faq-layout { align-items: flex-start; display: grid; gap: 80px; grid-template-columns: .75fr 1.25fr; }
.kh-faq-layout .kh-section-heading { position: sticky; top: 110px; }
.kh-faq-layout .kh-section-heading a { color: var(--teal-dark); }
.kh-faq-list { border-top: 1px solid var(--line); }
.kh-faq-list details { border-bottom: 1px solid var(--line); padding: 0 3px; }
.kh-faq-list summary { color: var(--navy); cursor: pointer; display: flex; font-size: 15px; font-weight: 750; justify-content: space-between; list-style: none; padding: 22px 0; }
.kh-faq-list summary::-webkit-details-marker { display: none; }
.kh-faq-list summary span { color: var(--teal-dark); font-size: 20px; transition: transform 150ms ease; }
.kh-faq-list details[open] summary span { transform: rotate(45deg); }
.kh-faq-list p { color: var(--slate); font-size: 13px; margin: -8px 32px 22px 0; }
.kh-final-cta { background: var(--teal-dark); padding: 64px 0; }
.kh-final-cta .kh-container { align-items: center; display: flex; justify-content: space-between; }
.kh-final-cta h2 { color: var(--white); font-size: 32px; margin-bottom: 0; max-width: 710px; }
.kh-eyebrow-light { color: #99f6e4; }
.kh-button-light { background: var(--white); border-color: var(--white); color: var(--navy); flex: 0 0 auto; }
.kh-button-light:hover { background: #f0fdfa; border-color: #f0fdfa; color: var(--teal-dark); }
.kh-footer { background: #0b1120; color: #8794a8; padding: 38px 0; }
.kh-footer .kh-container { align-items: center; display: flex; gap: 26px; }
.kh-brand-footer .kh-brand-mark { height: 31px; width: 31px; }
.kh-brand-footer .kh-brand-strong { color: var(--white); }
.kh-footer p { font-size: 11px; margin: 0; }
.kh-footer div div { display: flex; gap: 20px; margin-left: auto; }
.kh-footer a { font-size: 11px; text-decoration: none; }
.kh-footer small { border-left: 1px solid #263044; font-size: 10px; padding-left: 22px; }

/* Registration */
.kh-register-page { background: var(--white); min-height: 100vh; }
.kh-register-header { align-items: center; background: var(--white); border-bottom: 1px solid var(--line); display: flex; height: 72px; justify-content: space-between; padding: 0 36px; position: relative; z-index: 2; }
.kh-register-header > span { color: var(--slate); font-size: 12px; }
.kh-register-header > span a { color: var(--teal-dark); font-weight: 750; margin-left: 4px; text-decoration: none; }
.kh-register-main { display: grid; min-height: calc(100vh - 72px); grid-template-columns: minmax(360px, .84fr) minmax(600px, 1.16fr); }
.kh-register-summary {
    background:
        linear-gradient(90deg, rgba(34, 211, 238, .055) 1px, transparent 1px) 0 0 / 52px 52px,
        linear-gradient(rgba(34, 211, 238, .055) 1px, transparent 1px) 0 0 / 52px 52px,
        var(--navy);
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 64px clamp(44px, 6vw, 92px);
}
.kh-register-summary h1 { font-size: clamp(34px, 4vw, 50px); letter-spacing: -.04em; line-height: 1.12; margin: 17px 0 18px; max-width: 560px; }
.kh-register-summary > div > p { color: #a9b5c7; font-size: 16px; margin: 0; max-width: 530px; }
.kh-register-steps { display: grid; gap: 0; margin: 52px 0; }
.kh-register-steps > div { align-items: center; display: grid; gap: 15px; grid-template-columns: 38px 1fr; min-height: 72px; position: relative; }
.kh-register-steps > div:not(:last-child)::after { background: #344056; bottom: -1px; content: ""; height: 22px; left: 18px; position: absolute; width: 1px; }
.kh-register-steps > div > span { align-items: center; border: 1px solid #536178; border-radius: 50%; color: #93a2b9; display: inline-flex; font-size: 11px; font-weight: 800; height: 38px; justify-content: center; width: 38px; }
.kh-register-steps .is-active > span { background: var(--teal); border-color: var(--teal); color: var(--white); }
.kh-register-steps div div { display: grid; }
.kh-register-steps b { color: var(--white); font-size: 13px; }
.kh-register-steps small { color: #8796ac; font-size: 10px; }
.kh-register-quote { border-top: 1px solid #2c374a; color: #a9b5c7; display: grid; gap: 11px; grid-template-columns: 24px 1fr; padding-top: 27px; }
.kh-register-quote > span { color: var(--teal); font-family: Georgia, serif; font-size: 34px; line-height: 1; }
.kh-register-quote p { font-size: 12px !important; font-style: italic; margin: 0; max-width: 380px; }
.kh-register-form-column { align-items: center; background: #f8fafc; display: flex; justify-content: center; padding: 50px 32px; }
.kh-register-form-wrap { max-width: 580px; width: 100%; }
.kh-register-back { color: var(--slate); display: inline-block; font-size: 11px; margin-bottom: 26px; text-decoration: none; }
.kh-register-back:hover { color: var(--teal-dark); }
.kh-register-heading > span { color: var(--teal-dark); font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.kh-register-heading h2 { color: var(--navy); font-size: 31px; letter-spacing: -.03em; margin: 7px 0 4px; }
.kh-register-heading p { color: var(--slate); font-size: 13px; margin: 0 0 27px; }
.kh-registration-form { background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 15px 35px rgba(15, 23, 42, .055); padding: 28px; }
.kh-form-row { display: grid; gap: 15px; grid-template-columns: 1fr 1fr; }
.kh-form-field { margin-bottom: 17px; }
.kh-form-field label { color: var(--navy); display: block; font-size: 11px; font-weight: 750; margin-bottom: 6px; }
.kh-form-field input {
    appearance: none;
    background: var(--white);
    border: 1px solid #ccd7e2;
    border-radius: 6px;
    color: var(--navy);
    font: inherit;
    font-size: 13px;
    height: 45px;
    outline: none;
    padding: 0 12px;
    width: 100%;
}
.kh-form-field input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(20, 184, 166, .1); }
.kh-form-field input::placeholder { color: #a8b4c2; }
.kh-form-field > small { color: #8491a3; display: block; font-size: 9px; margin-top: 5px; }
.kh-registration-form ul { color: #b42318; font-size: 10px; list-style: none; margin: 5px 0 0; padding: 0; }
.kh-registration-form > ul { background: #fff1f0; border: 1px solid #ffccc7; border-radius: 6px; margin: 0 0 17px; padding: 10px 12px; }
.kh-trial-summary { background: #f0fdfa; border: 1px solid #b9ebe4; border-radius: 7px; margin: 5px 0 17px; padding: 13px 15px; }
.kh-trial-summary div { display: flex; font-size: 11px; justify-content: space-between; }
.kh-trial-summary div + div { margin-top: 4px; }
.kh-trial-summary span { color: #52706c; }
.kh-trial-summary strong { color: var(--navy); }
.kh-trial-summary p { border-top: 1px solid #ccece7; color: #66817d; font-size: 9px; line-height: 1.55; margin: 9px 0 0; padding-top: 8px; }
.kh-welcome-credits { align-items: center; background: #f8fafc; border: 1px solid #dce5ed; border-radius: 7px; display: grid; gap: 11px; grid-template-columns: 46px 1fr; margin: -5px 0 17px; padding: 12px 14px; }
.kh-welcome-credits > span { align-items: center; background: var(--navy); border-radius: 7px; color: var(--teal); display: inline-flex; font-size: 13px; font-weight: 850; height: 38px; justify-content: center; width: 46px; }
.kh-welcome-credits p { color: #718096; font-size: 9px; line-height: 1.5; margin: 0; }
.kh-welcome-credits strong { color: var(--navy); font-size: 10px; }
.kh-checkbox { align-items: flex-start; color: #64748b; display: flex; font-size: 10px; gap: 9px; line-height: 1.55; }
.kh-checkbox input { accent-color: var(--teal); flex: 0 0 auto; margin: 2px 0 0; }
.kh-checkbox a { color: var(--teal-dark); font-weight: 700; }
.kh-submit-button { border: 0; cursor: pointer; font-family: inherit; margin-top: 18px; }
.kh-secure-note { align-items: center; color: #8491a3; display: flex; gap: 9px; justify-content: center; margin-top: 13px; }
.kh-secure-note > span { color: var(--teal-dark); font-size: 20px; }
.kh-secure-note p { font-size: 9px; line-height: 1.4; margin: 0; }
.kh-secure-note strong { color: #64748b; }
.kh-form-alert { background: #fffbeb; border: 1px solid #fde68a; border-radius: 6px; color: #92400e; font-size: 11px; margin-bottom: 14px; padding: 10px 12px; }

/* Error pages */
.kh-error-page {
    background:
        linear-gradient(90deg, rgba(20, 184, 166, .045) 1px, transparent 1px) 0 0 / 56px 56px,
        linear-gradient(rgba(20, 184, 166, .045) 1px, transparent 1px) 0 0 / 56px 56px,
        var(--background);
    min-height: 100vh;
}
.kh-error-header { align-items: center; background: var(--white); border-bottom: 1px solid var(--line); display: flex; height: 72px; justify-content: space-between; padding: 0 36px; }
.kh-error-header > a:last-child { color: var(--slate); font-size: 12px; text-decoration: none; }
.kh-error-header > a:last-child strong { color: var(--teal-dark); margin-left: 3px; }
.kh-error-main { align-items: center; display: flex; justify-content: center; min-height: calc(100vh - 72px); padding: 48px 20px; }
.kh-error-card { background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 18px 45px rgba(15, 23, 42, .08); max-width: 660px; overflow: hidden; padding: clamp(32px, 6vw, 58px); position: relative; width: 100%; }
.kh-error-code { color: #e8eef3; font-size: clamp(92px, 18vw, 148px); font-weight: 850; letter-spacing: -.075em; line-height: .8; position: absolute; right: 30px; top: 30px; user-select: none; }
.kh-error-card .kh-eyebrow { margin-bottom: 18px; position: relative; }
.kh-error-card h1 { color: var(--navy); font-size: clamp(34px, 6vw, 49px); letter-spacing: -.04em; line-height: 1.1; margin: 0 0 18px; max-width: 480px; position: relative; }
.kh-error-card > p { color: var(--slate); font-size: 16px; line-height: 1.7; margin: 0; max-width: 520px; position: relative; }
.kh-error-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 23px; margin-top: 31px; position: relative; }
.kh-error-link { color: var(--navy); font-size: 13px; font-weight: 700; text-decoration: none; }
.kh-error-link:hover { color: var(--teal-dark); }

@media (max-width: 1050px) {
    .kh-nav-links { display: none; }
    .kh-hero { padding-top: 76px; }
    .kh-hero-grid { gap: 45px; grid-template-columns: 1fr 440px; }
    .kh-floating-card-top { right: -5px; }
    .kh-price-layout { gap: 55px; grid-template-columns: 1fr 430px; }
    .kh-register-main { grid-template-columns: 380px 1fr; }
    .kh-register-summary { padding: 52px 40px; }
}

@media (max-width: 820px) {
    .kh-hero-grid { grid-template-columns: 1fr; }
    .kh-product-preview { margin: 15px auto 0; max-width: 560px; width: 100%; }
    .kh-audience .kh-container { display: block; text-align: center; }
    .kh-audience-list { flex-wrap: wrap; justify-content: center; margin-top: 13px; }
    .kh-steps, .kh-feature-grid { grid-template-columns: 1fr 1fr; }
    .kh-model-grid { grid-template-columns: 1fr; }
    .kh-feature-wide { grid-column: span 2; }
    .kh-price-layout, .kh-faq-layout { grid-template-columns: 1fr; }
    .kh-price-copy { text-align: center; }
    .kh-price-copy > p { margin-left: auto; margin-right: auto; }
    .kh-price-proof { justify-content: center; }
    .kh-price-card { margin: 0 auto; max-width: 500px; width: 100%; }
    .kh-faq-layout { gap: 20px; }
    .kh-faq-layout .kh-section-heading { position: static; }
    .kh-final-cta .kh-container { align-items: flex-start; flex-direction: column; gap: 26px; }
    .kh-footer .kh-container { flex-wrap: wrap; }
    .kh-register-main { grid-template-columns: 1fr; }
    .kh-register-summary { display: none; }
}

@media (max-width: 600px) {
    .kh-container { padding-left: 18px; padding-right: 18px; }
    .kh-nav { height: 67px; }
    .kh-brand-mark { height: 30px; width: 30px; }
    .kh-brand-word { font-size: 19px; }
    .kh-brand-ai { border-radius: 6px; font-size: 10px; height: 18px; margin-left: 6px; padding: 0 5px; }
    .kh-nav-actions { gap: 0; }
    .kh-nav-actions .kh-button { display: none; }
    .kh-link-button {
        align-items: center;
        border: 1px solid var(--line);
        border-radius: 7px;
        display: inline-flex;
        justify-content: center;
        min-height: 40px;
        padding: 0 13px;
    }
    .kh-hero { padding: 62px 0 75px; }
    .kh-hero h1 { font-size: 42px; }
    .kh-hero-lead { font-size: 16px; }
    .kh-hero-actions { align-items: flex-start; flex-direction: column; }
    .kh-hero-reassurance { display: grid; gap: 8px; }
    .kh-product-preview { min-height: 450px; }
    .kh-preview-window { left: 0; }
    .kh-floating-card { display: none; }
    .kh-audience-list i { display: none; }
    .kh-audience-list { display: grid; gap: 7px; }
    .kh-section { padding: 74px 0; }
    .kh-steps, .kh-feature-grid { grid-template-columns: 1fr; }
    .kh-feature-wide { display: block; grid-column: span 1; }
    .kh-feature-wide .kh-feature-icon { margin-bottom: 20px; }
    .kh-model-card { padding: 24px 20px; }
    .kh-model-card-heading { grid-template-columns: 44px 1fr; }
    .kh-model-tag { grid-column: 2; justify-self: start; }
    .kh-price-card { padding: 28px 22px; }
    .kh-price-proof { gap: 28px; }
    .kh-footer .kh-container { align-items: flex-start; display: grid; }
    .kh-footer div div { margin-left: 0; }
    .kh-footer small { border-left: 0; padding-left: 0; }
    .kh-register-header { height: 64px; padding: 0 18px; }
    .kh-register-header > span { font-size: 10px; }
    .kh-register-form-column { align-items: flex-start; padding: 30px 16px 50px; }
    .kh-registration-form { padding: 21px 17px; }
    .kh-form-row { grid-template-columns: 1fr; gap: 0; }
    .kh-error-header { height: 64px; padding: 0 18px; }
    .kh-error-header > a:last-child { font-size: 0; }
    .kh-error-header > a:last-child strong { font-size: 11px; }
    .kh-error-main { align-items: flex-start; min-height: calc(100vh - 64px); padding: 34px 16px; }
    .kh-error-card { padding: 34px 24px; }
    .kh-error-code { font-size: 88px; right: 19px; top: 24px; }
    .kh-error-card > p { font-size: 14px; }
    .kh-error-actions { align-items: stretch; flex-direction: column; gap: 16px; }
    .kh-error-actions .kh-button { width: 100%; }
    .kh-error-link { text-align: center; }
}