:root {
    --auth-primary: var(--primary, var(--brand-primary, #003377));
    --auth-primary-dark: var(--primary-hover, var(--brand-primary-dark, #001f4d));
    --auth-accent: var(--brand-gold, #f4c430);
    --auth-ink: var(--text-dark, #212529);
    --auth-muted: var(--text-muted, #6b7280);
    --auth-border: var(--card-border, rgba(0, 51, 119, 0.12));
    --auth-panel-text: #ffffff;
    --auth-panel-muted: rgba(255, 255, 255, 0.76);
    --auth-panel-soft: rgba(255, 255, 255, 0.1);
    --auth-panel-border: rgba(255, 255, 255, 0.16);
    --auth-panel-step-bg: rgba(244, 196, 48, 0.18);
    --auth-panel-step-text: #fff8dc;
    --auth-surface: var(--card-bg, #ffffff);
    --auth-page-bg: var(--bg-body, #ffffff);
    --auth-content-bg: var(--card-bg, #ffffff);
    --auth-input-bg: var(--input-bg, #ffffff);
    --auth-input-border: var(--input-border, #d0dede);
    --auth-input-focus: var(--input-focus-border, var(--auth-primary));
    --auth-input-focus-shadow: var(--input-focus-shadow, 0 0 0 0.2rem rgba(0, 51, 119, 0.25));
    --auth-shadow: var(--card-shadow, 0 24px 70px rgba(15, 23, 42, 0.14));
    --auth-header-bg: linear-gradient(90deg, var(--brand-primary-dark, #001f4d), var(--brand-primary-dark, #001f4d), var(--brand-primary, #003377), var(--brand-info, #00aeef));
}

.dark-mode {
    --auth-panel-soft: rgba(255, 255, 255, 0.07);
    --auth-panel-border: rgba(244, 196, 48, 0.18);
    --auth-panel-step-bg: rgba(244, 196, 48, 0.14);
    --auth-panel-step-text: var(--brand-gold, #f4c430);
    --auth-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.auth-page {
    min-height: 100vh;
    padding: clamp(24px, 4vw, 56px);
    background:
        linear-gradient(135deg, rgba(var(--brand-primary-rgb, 0, 51, 119), 0.08), rgba(var(--border-rgb, 244, 196, 48), 0.1)),
        var(--auth-page-bg);
}

.auth-shell {
    width: min(1120px, 100%);
    min-height: min(780px, calc(100vh - 48px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(320px, 0.92fr) minmax(360px, 1fr);
    background: var(--auth-surface);
    border: 1px solid var(--auth-border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--auth-shadow);
}

.auth-panel {
    display: flex;
    flex-direction: column;
    gap: 34px;
    padding: clamp(30px, 4vw, 56px);
    color: var(--auth-panel-text);
    background: var(--auth-header-bg);
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.auth-brand-mark {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--auth-panel-soft);
    color: var(--auth-accent);
    font-size: 1.15rem;
}

.auth-brand-label,
.auth-kicker,
.auth-eyebrow {
    display: block;
    color: var(--auth-accent);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

.auth-brand strong {
    display: block;
    margin-top: 2px;
    font-size: 1.05rem;
    line-height: 1.2;
}

.auth-panel-copy {
    margin-top: auto;
}

.auth-panel-copy h2 {
    max-width: 430px;
    margin: 10px 0 14px;
    color: var(--auth-panel-text);
    font-size: clamp(2rem, 4vw, 3.15rem);
    line-height: 1.04;
    font-weight: 800;
}

.auth-panel-copy p {
    max-width: 440px;
    margin: 0;
    color: var(--auth-panel-muted);
    line-height: 1.7;
}

.auth-steps {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.auth-steps li {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 12px;
    align-items: center;
    padding: 13px;
    border: 1px solid var(--auth-panel-border);
    border-radius: 8px;
    background: var(--auth-panel-soft);
}

.auth-steps span {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--auth-panel-step-bg);
    color: var(--auth-panel-step-text);
    font-weight: 800;
}

.auth-steps strong,
.auth-help strong {
    display: block;
    color: var(--auth-panel-text);
}

.auth-steps small {
    display: block;
    margin-top: 2px;
    color: var(--auth-panel-muted);
}

.auth-help {
    padding-top: 18px;
    border-top: 1px solid var(--auth-panel-border);
}

.auth-help-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.auth-help-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 9px 12px;
    color: var(--auth-panel-text);
    text-decoration: none;
    border: 1px solid var(--auth-panel-border);
    border-radius: 8px;
    background: var(--auth-panel-soft);
}

.auth-help-link:hover,
.auth-help-link:focus {
    color: var(--auth-panel-text);
    background: rgba(255, 255, 255, 0.16);
}

.auth-content {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(26px, 5vw, 64px);
    background: var(--auth-content-bg);
}

.auth-form-wrapper {
    width: min(100%, 470px);
}

.auth-card {
    width: 100%;
}

.auth-card-header {
    margin-bottom: 28px;
}

.auth-card-header h1 {
    margin: 8px 0 10px;
    color: var(--auth-ink);
    font-size: clamp(2rem, 4vw, 2.65rem);
    line-height: 1.05;
    font-weight: 800;
}

.auth-card-header p {
    margin: 0;
    color: var(--auth-muted);
    line-height: 1.65;
}

.auth-eyebrow {
    color: var(--auth-primary);
}

.auth-form .mb-3 {
    margin-bottom: 18px !important;
}

.auth-form .form-label {
    color: var(--auth-ink);
    font-weight: 700;
    margin-bottom: 7px;
}

.auth-form .form-control {
    min-height: 48px;
    padding: 11px 14px;
    color: var(--auth-ink);
    border: 1px solid var(--auth-input-border);
    border-radius: 8px;
    background-color: var(--auth-input-bg);
    box-shadow: none;
}

.auth-form .form-control:focus {
    border-color: var(--auth-input-focus);
    box-shadow: var(--auth-input-focus-shadow);
}

.auth-password-field {
    flex-wrap: nowrap;
}

.auth-password-field .form-control {
    border-right: 0;
    border-radius: 8px 0 0 8px;
}

.password-toggle {
    width: 50px;
    border: 1px solid var(--auth-input-border);
    border-left: 0;
    border-radius: 0 8px 8px 0;
    color: var(--auth-muted);
    background: var(--auth-input-bg);
}

.password-toggle:hover,
.password-toggle:focus {
    color: var(--auth-input-focus);
    background: var(--primary-light, rgba(var(--brand-primary-rgb, 0, 51, 119), 0.08));
}

.auth-form-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin: 2px 0 20px;
}

.auth-form .form-check-input {
    width: 1.05rem;
    height: 1.05rem;
    margin-top: 0.18rem;
    border-color: var(--auth-input-border);
    background-color: var(--auth-input-bg);
}

.auth-form .form-check-input:checked {
    background-color: var(--auth-input-focus);
    border-color: var(--auth-input-focus);
}

.auth-submit-btn {
    width: 100%;
    min-height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 18px;
    color: #ffffff;
    font-weight: 800;
    border: 0;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--btn-primary-bg, var(--auth-primary)), var(--btn-primary-hover, var(--auth-primary-dark)));
    box-shadow: 0 12px 24px rgba(var(--brand-primary-rgb, 0, 51, 119), 0.22);
}

.auth-submit-btn:hover,
.auth-submit-btn:focus {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary-hover, var(--auth-primary-dark)), var(--primary-dark, var(--auth-primary-dark)));
}

.auth-submit-btn:disabled {
    opacity: 0.72;
    box-shadow: none;
}

.auth-switch {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 7px;
    margin-top: 22px;
    color: var(--auth-muted);
}

.auth-switch a {
    color: var(--auth-primary-dark);
    font-weight: 800;
    text-decoration: none;
}

.auth-switch a:hover,
.auth-switch a:focus {
    text-decoration: underline;
}

.password-strength-wrapper {
    display: none;
    margin-top: 10px;
    padding: 12px;
    border: 1px solid var(--auth-border);
    border-radius: 8px;
    background: var(--primary-light, rgba(var(--brand-primary-rgb, 0, 51, 119), 0.06));
}

.strength-bar {
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--auth-input-border);
}

.strength-bar span {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    transition: width 0.25s ease, background-color 0.25s ease;
}

.strength-weak span {
    background: var(--danger, #dc2626);
}

.strength-fair span {
    background: var(--warning, #f97316);
}

.strength-good span {
    background: var(--auth-accent);
}

.strength-strong span {
    background: var(--success, #16a34a);
}

.strength-text {
    display: block;
    min-height: 20px;
    margin-top: 8px;
    font-weight: 700;
}

.password-rules {
    display: grid;
    gap: 4px;
    padding-left: 18px;
    margin: 6px 0 0;
    color: var(--danger, #b91c1c);
}

.password-rules li {
    transition: color 0.2s ease;
}

.password-rules li.valid {
    color: var(--success, #15803d);
}

.auth-captcha,
.auth-captcha-field {
    margin-bottom: 18px;
}

.auth-captcha {
    display: flex;
    justify-content: center;
    overflow-x: auto;
}

.auth-captcha-control {
    display: flex;
    align-items: center;
    gap: 12px;
}

.auth-captcha-image {
    flex: 0 0 auto;
    max-width: 160px;
    border: 1px solid var(--auth-input-border);
    border-radius: 8px;
    cursor: pointer;
}

.auth-helper {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: -8px;
    margin-bottom: 18px;
    color: var(--auth-muted);
}

@media (max-width: 991.98px) {
    .auth-page {
        padding: 0;
    }

    .auth-shell {
        min-height: 100vh;
        grid-template-columns: 1fr;
        border: 0;
        border-radius: 0;
    }

    .auth-panel {
        display: none;
    }

    .auth-content {
        min-height: 100vh;
        align-items: center;
        padding: 34px 22px 42px;
    }
}

@media (max-width: 575.98px) {
    .auth-card-header h1 {
        font-size: 1.85rem;
    }

    .auth-content {
        padding: 28px 16px 36px;
    }

    .auth-captcha-control {
        align-items: stretch;
        flex-direction: column;
    }
}