:root {
    --zkaa-purple: #5b3df5;
    --zkaa-purple-dark: #321b9e;
    --zkaa-violet: #8b5cf6;
    --zkaa-ink: #171522;
    --zkaa-muted: #696678;
    --zkaa-line: #dedbe9;
    --zkaa-surface: #ffffff;
}

body.zkaa-gate-document {
    min-height: 100vh;
    margin: 0;
    overflow: hidden;
    background:
        radial-gradient(circle at 15% 15%, rgba(139, 92, 246, .26), transparent 38%),
        radial-gradient(circle at 85% 90%, rgba(91, 61, 245, .2), transparent 42%),
        #12101d;
}

.zkaa-gate-shell {
    min-height: 100vh;
    padding: 24px;
    box-sizing: border-box;
}

.zkaa-wordmark {
    color: #fff;
    font: 800 22px/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: -.03em;
    text-decoration: none;
}

.zkaa-overlay {
    position: fixed;
    z-index: 2147483000;
    inset: 0;
    display: grid;
    place-items: center;
    overflow: auto;
    padding: 24px;
    box-sizing: border-box;
    background: rgba(15, 12, 28, .82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.zkaa-modal {
    position: relative;
    width: min(100%, 540px);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 22px;
    background: var(--zkaa-surface);
    color: var(--zkaa-ink);
    box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.zkaa-modal-accent {
    height: 8px;
    background: linear-gradient(90deg, var(--zkaa-purple-dark), var(--zkaa-purple), #c058ed);
}

.zkaa-modal-body {
    padding: clamp(26px, 6vw, 42px);
}

.zkaa-badge {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    margin-bottom: 20px;
    border-radius: 18px;
    color: #fff;
    background: linear-gradient(145deg, var(--zkaa-purple), var(--zkaa-purple-dark));
    box-shadow: 0 12px 25px rgba(91, 61, 245, .3);
    font-size: 20px;
    font-weight: 900;
}

.zkaa-eyebrow {
    margin: 0 0 8px !important;
    color: var(--zkaa-purple) !important;
    font-size: 12px !important;
    font-weight: 800 !important;
    letter-spacing: .11em !important;
    text-transform: uppercase;
}

.zkaa-modal h1 {
    margin: 0 0 15px !important;
    color: var(--zkaa-ink) !important;
    font-size: clamp(27px, 6vw, 37px) !important;
    font-weight: 850 !important;
    line-height: 1.08 !important;
    letter-spacing: -.035em !important;
}

.zkaa-modal p,
.zkaa-modal label,
.zkaa-modal input,
.zkaa-modal button,
.zkaa-modal a {
    font-family: inherit;
}

.zkaa-modal p {
    margin: 0 0 18px;
    color: var(--zkaa-muted);
    font-size: 15px;
    line-height: 1.6;
}

.zkaa-fineprint {
    font-size: 13px !important;
}

.zkaa-label {
    display: block;
    margin: 20px 0 8px;
    color: var(--zkaa-ink);
    font-size: 14px;
    font-weight: 750;
}

.zkaa-input {
    display: block;
    width: 100%;
    min-height: 50px;
    padding: 10px 14px;
    box-sizing: border-box;
    border: 1px solid var(--zkaa-line);
    border-radius: 12px;
    background: #fff;
    color: var(--zkaa-ink);
    font-size: 16px;
    outline: none;
}

.zkaa-input:focus {
    border-color: var(--zkaa-purple);
    box-shadow: 0 0 0 4px rgba(91, 61, 245, .12);
}

.zkaa-check {
    display: flex;
    gap: 11px;
    align-items: flex-start;
    margin: 18px 0;
    color: var(--zkaa-muted);
    font-size: 13px;
    line-height: 1.5;
    cursor: pointer;
}

.zkaa-check input {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    margin: 1px 0 0;
    accent-color: var(--zkaa-purple);
}

.zkaa-check a,
.zkaa-account-links a,
.zkaa-link-button {
    color: var(--zkaa-purple);
    font-weight: 700;
}

.zkaa-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.zkaa-button {
    display: inline-flex !important;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 11px 18px !important;
    box-sizing: border-box;
    border: 1px solid transparent !important;
    border-radius: 12px !important;
    font-size: 14px !important;
    font-weight: 800 !important;
    line-height: 1.2 !important;
    text-align: center;
    text-decoration: none !important;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease, opacity .16s ease;
}

.zkaa-button:hover {
    transform: translateY(-1px);
}

.zkaa-button:focus-visible,
.zkaa-link-button:focus-visible {
    outline: 3px solid rgba(91, 61, 245, .35);
    outline-offset: 2px;
}

.zkaa-button[disabled] {
    opacity: .58;
    transform: none;
    cursor: wait;
}

.zkaa-button-primary {
    color: #fff !important;
    background: linear-gradient(135deg, var(--zkaa-purple), var(--zkaa-purple-dark)) !important;
    box-shadow: 0 10px 24px rgba(91, 61, 245, .24);
}

.zkaa-button-secondary {
    border-color: var(--zkaa-line) !important;
    color: var(--zkaa-ink) !important;
    background: #fff !important;
}

.zkaa-full {
    width: 100%;
}

.zkaa-link-button {
    display: block;
    margin: 14px auto 0;
    padding: 5px;
    border: 0;
    background: transparent;
    font-size: 13px;
    text-decoration: underline;
    cursor: pointer;
}

.zkaa-account-links {
    margin: 18px 0 0 !important;
    text-align: center;
    font-size: 13px !important;
}

.zkaa-message {
    display: none;
    margin-top: 16px;
    padding: 11px 13px;
    border-radius: 10px;
    font-size: 13px;
    line-height: 1.45;
}

.zkaa-message.is-visible {
    display: block;
}

.zkaa-message.is-error {
    color: #8c1d2b;
    background: #fff0f2;
    border: 1px solid #ffcbd2;
}

.zkaa-message.is-success {
    color: #17653a;
    background: #ebfff3;
    border: 1px solid #b9edcc;
}

.zkaa-notice {
    margin: 18px 0;
    padding: 12px 14px;
    border: 1px solid #f1d28c;
    border-radius: 10px;
    color: #705110;
    background: #fff8e5;
    font-size: 14px;
}

.zkaa-registration-fields {
    margin: 20px 0;
    padding: 20px;
    border: 1px solid #dedbe9;
    border-radius: 14px;
    background: #faf9ff;
    color: #171522;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.zkaa-registration-heading {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 16px;
}

.zkaa-registration-heading p {
    margin: 3px 0 0 !important;
    color: #696678;
    font-size: 13px;
    line-height: 1.45;
}

.zkaa-registration-icon {
    display: grid;
    flex: 0 0 42px;
    height: 42px;
    place-items: center;
    border-radius: 12px;
    color: #fff;
    background: #5b3df5;
    font-weight: 900;
}

.zkaa-field-row label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
}

.zkaa-field-row input[type="date"] {
    width: 100%;
    min-height: 44px;
    padding: 8px 10px;
    box-sizing: border-box;
}

.zkaa-field-row small {
    display: block;
    margin-top: 6px;
    color: #696678;
    font-size: 12px;
}

.zkaa-attestation-row label {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    font-size: 13px;
    line-height: 1.45;
}

.zkaa-attestation-row input {
    margin-top: 2px;
}

.zkaa-inline-status {
    padding: 22px;
    border: 1px solid #dedbe9;
    border-radius: 14px;
    color: #312d3f;
    background: #faf9ff;
    line-height: 1.55;
}

.zkaa-inline-status.is-approved {
    border-color: #b9edcc;
    background: #effff5;
}

@media (max-width: 560px) {
    .zkaa-overlay {
        align-items: end;
        padding: 0;
    }

    .zkaa-modal {
        width: 100%;
        max-height: 94vh;
        overflow-y: auto;
        border-radius: 22px 22px 0 0;
    }

    .zkaa-modal-body {
        padding: 25px 22px calc(25px + env(safe-area-inset-bottom));
    }

    .zkaa-actions .zkaa-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .zkaa-button {
        transition: none;
    }
}