:root {
    --mi-auth-bg: #f4f6fa;
    --mi-auth-surface: #ffffff;
    --mi-auth-text: #101828;
    --mi-auth-muted: #667085;
    --mi-auth-border: #dfe3ea;
    --mi-auth-accent: #2563eb;
}

* { box-sizing: border-box; }
html, body.mi-auth-body { margin: 0; min-height: 100%; }
body.mi-auth-body {
    min-height: 100vh;
    background: var(--mi-auth-bg);
    color: var(--mi-auth-text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

.mi-auth-shell {
    min-height: 100vh;
    padding: 42px 20px 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mi-auth-brand {
    width: min(100%, 560px);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 34px;
}

.mi-auth-mark {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    background: #111827;
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
}

.mi-auth-brand-name { font-weight: 750; font-size: 15px; }
.mi-auth-brand-subtitle { color: #98a2b3; font-size: 12px; margin-top: 2px; }

.mi-auth-card {
    width: min(100%, 480px);
    background: var(--mi-auth-surface);
    border: 1px solid var(--mi-auth-border);
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 18px 50px rgba(16,24,40,.08);
}

.mi-auth-card-wide { width: min(100%, 620px); }
.mi-auth-heading { margin-bottom: 24px; }
.mi-auth-eyebrow { font-size: 10px; font-weight: 800; letter-spacing: .14em; color: #98a2b3; }
.mi-auth-heading h1 { margin: 7px 0 8px; font-size: 30px; letter-spacing: -.035em; }
.mi-auth-heading p { margin: 0; color: var(--mi-auth-muted); line-height: 1.6; }

.mi-auth-form { display: grid; gap: 17px; }
.mi-auth-form label { display: grid; gap: 7px; font-size: 13px; font-weight: 650; }
.mi-auth-form input[type="text"],
.mi-auth-form input[type="email"],
.mi-auth-form input[type="password"] {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--mi-auth-border);
    border-radius: 10px;
    padding: 0 13px;
    background: #fff;
    color: var(--mi-auth-text);
    font: inherit;
    font-weight: 400;
    outline: none;
}
.mi-auth-form input:focus { border-color: #84adff; box-shadow: 0 0 0 3px rgba(37,99,235,.09); }

.mi-auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mi-auth-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.mi-auth-row a, .mi-auth-footer a { color: var(--mi-auth-accent); text-decoration: none; font-size: 13px; font-weight: 650; }
.mi-check { display: flex !important; grid-template-columns: auto 1fr; align-items: center; gap: 7px !important; color: var(--mi-auth-muted); font-weight: 500 !important; }

.mi-auth-submit {
    min-height: 46px;
    border: 0;
    border-radius: 10px;
    padding: 0 16px;
    background: var(--mi-auth-accent);
    color: #fff;
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}
.mi-auth-submit-link { display: grid; place-items: center; text-decoration: none; margin-top: 16px; }

.mi-auth-message { border-radius: 10px; padding: 12px 14px; margin-bottom: 18px; font-size: 13px; line-height: 1.5; }
.mi-auth-message.is-error { color: #b42318; background: #fef3f2; border: 1px solid #fecdca; }
.mi-auth-message.is-success { color: #027a48; background: #ecfdf3; border: 1px solid #abefc6; }
.mi-auth-footer { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--mi-auth-border); text-align: center; color: var(--mi-auth-muted); font-size: 13px; }

@media (max-width: 620px) {
    .mi-auth-shell { padding-top: 24px; }
    .mi-auth-card { padding: 24px 20px; }
    .mi-auth-grid { grid-template-columns: 1fr; }
    .mi-auth-row { align-items: flex-start; flex-direction: column; }
}

.mi-required { color: #d92d20; font-weight: 800; }

.mi-auth-form select {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--mi-auth-border);
    border-radius: 10px;
    padding: 0 13px;
    background: #fff;
    color: var(--mi-auth-text);
    font: inherit;
    font-weight: 400;
    outline: none;
}
.mi-auth-form select:focus { border-color: #84adff; box-shadow: 0 0 0 3px rgba(37,99,235,.09); }

.mi-password-field {
    position: relative;
    display: block;
}
.mi-password-field input {
    padding-right: 48px !important;
}
.mi-password-toggle {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 36px;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #667085;
    cursor: pointer;
    font-size: 17px;
    line-height: 1;
}
.mi-password-toggle:hover { background: #f2f4f7; }
.mi-password-toggle.is-visible { background: #eef4ff; }

/* Registration plan selector */
.mi-auth-card-register { width: min(100%, 1040px); }
.mi-plan-section { display: grid; gap: 16px; margin-bottom: 8px; }
.mi-plan-heading,
.mi-registration-fields-heading { display: flex; align-items: end; justify-content: space-between; gap: 18px; }
.mi-plan-heading h2,
.mi-registration-fields-heading h2 { margin: 5px 0 0; font-size: 20px; letter-spacing: -.02em; }
.mi-plan-note { color: var(--mi-auth-muted); font-size: 12px; }
.mi-plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.mi-plan-card {
    position: relative;
    display: flex !important;
    min-height: 250px;
    padding: 20px;
    border: 1px solid var(--mi-auth-border);
    border-radius: 14px;
    background: #fff;
    cursor: pointer;
    transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}
.mi-plan-card:hover { border-color: #98a2b3; transform: translateY(-1px); }
.mi-plan-card.is-selected { border: 2px solid var(--mi-auth-accent); padding: 19px; box-shadow: 0 0 0 3px rgba(37,99,235,.08); }
.mi-plan-card input { position: absolute; opacity: 0; pointer-events: none; }
.mi-plan-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mi-plan-name { font-size: 18px; font-weight: 800; }
.mi-plan-badge { padding: 4px 7px; border-radius: 999px; background: #eff8ff; color: #175cd3; font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.mi-plan-badge.is-paid { background: #f4f3ff; color: #5925dc; }
.mi-plan-price { margin-top: 12px; font-size: 26px; letter-spacing: -.035em; }
.mi-plan-description { min-height: 58px; margin-top: 8px; color: var(--mi-auth-muted); line-height: 1.5; font-weight: 400; font-size: 13px; }
.mi-plan-features { display: grid; gap: 7px; margin-top: 16px; color: #344054; font-weight: 500; font-size: 12px; }
.mi-plan-select-indicator { position: absolute; right: 14px; bottom: 14px; width: 24px; height: 24px; border: 1px solid var(--mi-auth-border); border-radius: 50%; display: grid; place-items: center; color: transparent; font-size: 12px; }
.mi-plan-card.is-selected .mi-plan-select-indicator { background: var(--mi-auth-accent); border-color: var(--mi-auth-accent); color: #fff; }
.mi-payment-placeholder { margin: 0; padding: 11px 13px; border: 1px solid #fedf89; border-radius: 10px; background: #fffaeb; color: #93370d; font-size: 12px; line-height: 1.5; }
.mi-registration-fields { display: grid; gap: 17px; margin-top: 8px; padding-top: 22px; border-top: 1px solid var(--mi-auth-border); }

@media (max-width: 820px) {
    .mi-plan-grid { grid-template-columns: 1fr; }
    .mi-plan-card { min-height: auto; }
    .mi-plan-description { min-height: auto; }
}
@media (max-width: 620px) {
    .mi-plan-heading, .mi-registration-fields-heading { align-items: flex-start; flex-direction: column; }
}

/* v0.7: dedicated plan selection page */
.mi-plans-brand { width: min(100%, 1120px); }
.mi-plans-page { width: min(100%, 1120px); padding: 38px; }
.mi-plans-heading-main { max-width: 720px; margin-bottom: 30px; }
.mi-plans-heading-main h1 { font-size: clamp(30px, 4vw, 44px); }
.mi-plans-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.mi-plan-choice-card {
    display: flex;
    flex-direction: column;
    min-height: 430px;
    padding: 26px;
    border: 1px solid var(--mi-auth-border);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(16,24,40,.04);
}
.mi-plan-choice-card.is-featured { border: 2px solid var(--mi-auth-accent); padding: 25px; box-shadow: 0 0 0 4px rgba(37,99,235,.07); }
.mi-plan-choice-top { display: grid; gap: 14px; }
.mi-plan-choice-top > div { display: flex; align-items: center; gap: 8px; }
.mi-plan-choice-name { font-size: 24px; font-weight: 800; letter-spacing: -.03em; }
.mi-plan-choice-price { font-size: 30px; letter-spacing: -.04em; }
.mi-plan-choice-description { min-height: 72px; margin: 14px 0 18px; color: var(--mi-auth-muted); line-height: 1.6; }
.mi-plan-choice-features { list-style: none; padding: 18px 0 0; margin: 0 0 24px; border-top: 1px solid var(--mi-auth-border); display: grid; gap: 11px; color: #344054; font-size: 14px; }
.mi-plan-choice-features li.is-muted { color: #98a2b3; }
.mi-plan-choice-button { margin-top: auto; min-height: 46px; display: grid; place-items: center; border: 1px solid var(--mi-auth-border); border-radius: 10px; color: var(--mi-auth-text); text-decoration: none; font-weight: 750; background: #fff; }
.mi-plan-choice-button:hover { border-color: #98a2b3; }
.mi-plan-choice-button.is-primary { color: #fff; background: var(--mi-auth-accent); border-color: var(--mi-auth-accent); }
.mi-plans-footer { margin-top: 30px; }

/* v0.7: compact selected-plan block on registration form */
.mi-auth-card-register-form { width: min(100%, 760px); }
.mi-selected-plan-summary { display: flex; align-items: center; justify-content: space-between; gap: 26px; margin: 0 0 18px; padding: 18px 20px; border: 1px solid var(--mi-auth-border); border-radius: 14px; background: #f9fafb; }
.mi-selected-plan-title-row { display: flex; align-items: center; gap: 9px; margin-top: 5px; }
.mi-selected-plan-title-row h2 { margin: 0; font-size: 22px; }
.mi-selected-plan-summary p { max-width: 500px; margin: 6px 0 0; color: var(--mi-auth-muted); font-size: 13px; line-height: 1.5; }
.mi-selected-plan-actions { flex: 0 0 auto; display: grid; justify-items: end; gap: 7px; }
.mi-selected-plan-actions strong { font-size: 18px; }
.mi-selected-plan-actions a { color: var(--mi-auth-accent); text-decoration: none; font-size: 12px; font-weight: 700; }
.mi-registration-fields-clean { margin-top: 0; }

@media (max-width: 820px) {
    .mi-plans-grid { grid-template-columns: 1fr; }
    .mi-plan-choice-card { min-height: auto; }
    .mi-plan-choice-description { min-height: auto; }
}
@media (max-width: 620px) {
    .mi-plans-page { padding: 24px 20px; }
    .mi-selected-plan-summary { align-items: flex-start; flex-direction: column; }
    .mi-selected-plan-actions { justify-items: start; }
}

/* v0.8 plan pricing */
.mi-plan-price-wrap {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
}

.mi-plan-old-price {
    color: #98a2b3;
    font-size: 13px;
    text-decoration: line-through;
}


/* v0.16: reusable plans shortcode */
.mi-plans-embed { width: 100%; }