/**
 * Auth modal - Roblox163 auth-forms look (dark violet, no cyan).
 * Self-contained for marketplace pages that skip style.css.
 */

:root {
    --sm-auth-bg: rgba(15, 15, 23, 0.98);
    --sm-auth-elevated: rgba(30, 30, 46, 0.85);
    --sm-auth-border: rgba(139, 92, 246, 0.2);
    --sm-auth-border-hover: rgba(139, 92, 246, 0.4);
    --sm-auth-text: #e4e4e7;
    --sm-auth-secondary: #a1a1aa;
    --sm-auth-muted: #71717a;
    --sm-auth-accent: #8b5cf6;
    --sm-auth-accent-hover: #a78bfa;
    --sm-auth-radius-sm: 8px;
    --sm-auth-radius-md: 12px;
    --sm-auth-radius-lg: 16px;
    --sm-auth-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(139, 92, 246, 0.1);
    --sm-auth-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --sm-auth-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --sm-auth-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.guest-auth-actions {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

/* Single header CTA - Roblox163 landing-top-btn look */
.landing-top-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 10px;
    border: 1px solid rgba(139, 92, 246, 0.35);
    background: transparent;
    color: var(--sm-auth-text);
    font: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: normal;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: background var(--sm-auth-fast), border-color var(--sm-auth-fast), color var(--sm-auth-fast);
}

.landing-top-btn:hover {
    background: rgba(139, 92, 246, 0.16);
    border-color: rgba(139, 92, 246, 0.55);
    color: #f4f4f5;
}

.landing-top-btn-primary {
    background: rgba(139, 92, 246, 0.22);
    border-color: rgba(139, 92, 246, 0.5);
    color: #fafafa;
}

.landing-top-btn-primary:hover {
    background: rgba(139, 92, 246, 0.32);
    border-color: rgba(167, 139, 250, 0.65);
}

button.signin-btn {
    font: inherit;
    appearance: none;
    -webkit-appearance: none;
}

.auth-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 12000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    box-sizing: border-box;
    background: rgba(30, 30, 46, 0.65);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--sm-auth-base);
}

.auth-modal-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.auth-modal-overlay .auth-modal {
    position: relative;
    max-width: 440px;
    width: min(440px, calc(100vw - 2rem));
    max-height: min(92vh, 900px);
    overflow: auto;
    padding: 0;
    border-radius: var(--sm-auth-radius-lg);
    border: 1px solid var(--sm-auth-border);
    background: var(--sm-auth-bg);
    box-shadow: var(--sm-auth-shadow);
    font-family: var(--sm-auth-font);
    transform: translateY(8px) scale(0.985);
    transition: transform var(--sm-auth-base);
}

.auth-modal-overlay.is-open .auth-modal {
    transform: translateY(0) scale(1);
}

.auth-modal-close {
    position: absolute;
    top: 0.65rem;
    right: 0.65rem;
    z-index: 2;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--sm-auth-radius-sm);
    background: transparent;
    color: var(--sm-auth-secondary);
    cursor: pointer;
    transition: background var(--sm-auth-fast), color var(--sm-auth-fast);
}

.auth-modal-close:hover {
    background: rgba(139, 92, 246, 0.12);
    color: var(--sm-auth-text);
}

.auth-modal-body,
.auth-modal-panel {
    padding: 2.25rem 1.5rem 1.75rem;
    box-sizing: border-box;
}

.auth-modal-body .auth-brand {
    display: none;
}

.auth-modal-body .auth-card-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-modal-body .auth-mode-tabs {
    display: flex;
    gap: 4px;
    width: 100%;
    margin: 0 0 1.25rem;
    padding: 4px;
    border-radius: var(--sm-auth-radius-md);
    background: var(--sm-auth-elevated);
    border: 1px solid var(--sm-auth-border);
    box-sizing: border-box;
}

.auth-modal-body .auth-mode-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0.55rem 0.75rem;
    border: 1px solid transparent;
    border-radius: calc(var(--sm-auth-radius-md) - 2px);
    background: transparent;
    color: var(--sm-auth-secondary);
    font-family: var(--sm-auth-font);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: none;
    letter-spacing: normal;
    text-decoration: none;
    cursor: pointer;
    transition:
        color var(--sm-auth-fast),
        background var(--sm-auth-fast),
        border-color var(--sm-auth-fast),
        box-shadow var(--sm-auth-fast);
}

.auth-modal-body .auth-mode-tab:hover:not(.is-active) {
    color: var(--sm-auth-text);
    background: rgba(255, 255, 255, 0.04);
}

.auth-modal-body .auth-mode-tab.is-active {
    color: var(--sm-auth-text);
    background: rgba(139, 92, 246, 0.18);
    border-color: rgba(139, 92, 246, 0.45);
    box-shadow: 0 1px 0 rgba(139, 92, 246, 0.12);
    cursor: default;
}

.auth-modal-body .auth-mode-tab:focus-visible {
    outline: 2px solid rgba(139, 92, 246, 0.55);
    outline-offset: 1px;
}

.auth-modal-body .auth-title {
    margin: 0 0 0.4rem;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--sm-auth-text);
    letter-spacing: -0.02em;
    text-transform: none;
}

.auth-modal-body .auth-subtitle {
    margin: 0;
    color: var(--sm-auth-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.auth-modal-body .auth-subtitle:empty,
.auth-modal-body .auth-subtitle[hidden] {
    display: none;
}

.auth-modal-body .auth-signup-hint {
    margin: -0.25rem 0 0;
    color: var(--sm-auth-muted);
    font-size: 0.85rem;
    line-height: 1.45;
    text-align: left;
}

.auth-modal-body .auth-verify-lead {
    margin: 0 0 0.25rem;
    color: var(--sm-auth-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.auth-modal-body .auth-row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: -0.25rem;
}

.auth-modal-body .auth-remember {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    color: var(--sm-auth-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: none;
    letter-spacing: normal;
}

.auth-modal-body .auth-remember:hover {
    color: var(--sm-auth-text);
}

.auth-modal-body .auth-remember .checkbox-wrapper {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.auth-modal-body .auth-remember .checkbox-wrapper input {
    display: none;
}

.auth-modal-body .checkbox-custom {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--sm-auth-border-hover);
    border-radius: 4px;
    transition: all var(--sm-auth-fast);
    position: relative;
    background: transparent;
}

.auth-modal-body .checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 4px;
    height: 8px;
    border: solid #0a0a0f;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--sm-auth-fast);
}

.auth-modal-body .checkbox-wrapper input:checked + .checkbox-custom {
    background: var(--sm-auth-accent);
    border-color: var(--sm-auth-accent);
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.4);
}

.auth-modal-body .checkbox-wrapper input:checked + .checkbox-custom::after {
    transform: rotate(45deg) scale(1);
}

.auth-modal-body .auth-remember-label {
    line-height: 1.2;
}

.auth-modal-body .auth-resend-btn {
    width: 100%;
    margin-top: 0.75rem;
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--sm-auth-font);
    text-transform: none;
    letter-spacing: normal;
    border-radius: var(--sm-auth-radius-md);
    cursor: pointer;
    color: var(--sm-auth-secondary);
    background: transparent;
    border: 1px solid var(--sm-auth-border);
    transition: background var(--sm-auth-fast), color var(--sm-auth-fast), border-color var(--sm-auth-fast);
}

.auth-modal-body .auth-resend-btn:hover:not(:disabled) {
    color: var(--sm-auth-text);
    border-color: var(--sm-auth-border-hover);
    background: rgba(139, 92, 246, 0.08);
}

.auth-modal-body .auth-resend-btn:disabled,
.auth-modal-body .auth-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.auth-modal-body .auth-alert {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--sm-auth-radius-sm);
    font-size: 0.9rem;
    line-height: 1.45;
}

.auth-modal-body .auth-alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.auth-modal-body .auth-alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.auth-modal-body .auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-modal-body .auth-input {
    width: 100%;
    padding: 1rem 1.15rem;
    background: var(--sm-auth-elevated);
    border: 1px solid var(--sm-auth-border-hover);
    border-radius: var(--sm-auth-radius-md);
    color: var(--sm-auth-text);
    font-size: 1rem;
    font-family: var(--sm-auth-font);
    min-height: 52px;
    line-height: 1.4;
    box-sizing: border-box;
    transition: border-color var(--sm-auth-base), box-shadow var(--sm-auth-base);
}

.auth-modal-body .auth-input::placeholder {
    color: var(--sm-auth-muted);
}

.auth-modal-body .auth-input:focus {
    outline: none;
    border-color: var(--sm-auth-accent);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.auth-modal-body .auth-password-field {
    position: relative;
}

.auth-modal-body .auth-password-field .auth-input {
    padding-right: 3.25rem;
}

.auth-modal-body .auth-eye-btn {
    position: absolute;
    right: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: rgba(139, 92, 246, 0.75);
    cursor: pointer;
    padding: 0.45rem;
    border-radius: var(--sm-auth-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color var(--sm-auth-fast), background var(--sm-auth-fast);
}

.auth-modal-body .auth-eye-btn .eye-open[hidden],
.auth-modal-body .auth-eye-btn .eye-closed[hidden] {
    display: none !important;
}

.auth-modal-body .auth-eye-btn:hover,
.auth-modal-body .auth-eye-btn[aria-pressed="true"] {
    color: var(--sm-auth-accent);
    background: rgba(139, 92, 246, 0.12);
}

.auth-modal-body .auth-eye-btn:focus-visible {
    outline: 2px solid rgba(139, 92, 246, 0.55);
    outline-offset: 1px;
}

/* Roblox163 .btn-primary - translucent violet, not solid / cyan gradient.
   Override deposit-main.css `.btn { text-transform: uppercase }` so copy stays natural. */
.auth-modal-body .auth-submit,
.auth-modal-body .btn.btn-primary.auth-submit,
.auth-modal-body .btn.auth-submit {
    width: 100%;
    margin-top: 0.25rem;
    padding: 0.95rem 1.25rem;
    font-size: 1.05rem;
    font-weight: 600;
    font-family: var(--sm-auth-font);
    letter-spacing: normal;
    text-transform: none;
    border-radius: var(--sm-auth-radius-md);
    cursor: pointer;
    color: var(--sm-auth-text);
    background: rgba(139, 92, 246, 0.12);
    border: 1px solid var(--sm-auth-border-hover);
    box-shadow: none;
    transition: background var(--sm-auth-fast), border-color var(--sm-auth-fast), transform var(--sm-auth-fast), box-shadow var(--sm-auth-fast);
}

.auth-modal-body .auth-submit:hover:not(:disabled),
.auth-modal-body .btn.btn-primary.auth-submit:hover:not(:disabled) {
    background: rgba(139, 92, 246, 0.2);
    border-color: #8b5cf6;
    color: var(--sm-auth-text);
    filter: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.35);
}

.auth-modal-body .auth-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.auth-modal-body .auth-divider {
    margin: 1.5rem 0;
    text-align: center;
    color: var(--sm-auth-secondary);
    font-size: 0.9rem;
    position: relative;
}

.auth-modal-body .auth-divider::before,
.auth-modal-body .auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: calc(50% - 1.5rem);
    height: 1px;
    background: var(--sm-auth-border);
}

.auth-modal-body .auth-divider::before { left: 0; }
.auth-modal-body .auth-divider::after { right: 0; }

.auth-modal-body .auth-form + .auth-divider,
.auth-modal-body .auth-form + #auth-modal-google .auth-divider {
    margin-top: 1.25rem;
}

.auth-modal-body .auth-google-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: #fff;
    color: #181825;
    border: none;
    border-radius: var(--sm-auth-radius-md);
    font-weight: 600;
    font-size: 1rem;
    font-family: var(--sm-auth-font);
    text-transform: none;
    letter-spacing: normal;
    padding: 0.95rem 1.25rem;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.08);
    transition: box-shadow var(--sm-auth-base), transform var(--sm-auth-base);
    box-sizing: border-box;
}

.auth-modal-body .auth-google-btn:hover {
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15);
    transform: translateY(-1px);
    color: #181825;
}

.auth-modal-body .auth-google-btn img,
.auth-modal-body .auth-google-btn .google-icon,
.auth-modal-body .auth-google-btn svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.auth-modal-body .auth-google-unconfigured {
    margin: 0;
    padding: 0.75rem 1rem;
    border-radius: var(--sm-auth-radius-sm);
    border: 1px solid rgba(251, 191, 36, 0.3);
    background: rgba(251, 191, 36, 0.08);
    color: var(--sm-auth-secondary);
    font-size: 0.85rem;
    line-height: 1.45;
    text-align: left;
}

.auth-modal-body .auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--sm-auth-secondary);
    font-size: 0.95rem;
}

.auth-modal-body .auth-footer:empty {
    display: none;
}

.auth-modal-body .auth-link {
    color: var(--sm-auth-accent);
    text-decoration: none;
    font-weight: 600;
    text-transform: none;
    letter-spacing: normal;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font: inherit;
}

.auth-modal-body .auth-link:hover {
    color: var(--sm-auth-accent-hover);
    text-decoration: underline;
}

body.auth-modal-open {
    overflow: hidden;
}

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

    .auth-modal-overlay .auth-modal {
        width: 100%;
        max-width: none;
        max-height: min(92dvh, calc(100dvh - env(safe-area-inset-top, 0px)));
        margin: 0;
        border-radius: 16px 16px 0 0;
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }

    .auth-modal-close {
        top: 0.5rem;
        right: 0.5rem;
        width: 40px;
        height: 40px;
        min-width: 40px;
    }

    .auth-modal-body,
    .auth-modal-panel {
        padding: 1.75rem 1.1rem 1.35rem;
    }

    .auth-modal-body .auth-title {
        font-size: 1.45rem;
    }

    .auth-modal-body .auth-mode-tab {
        min-height: 44px;
    }

    .guest-auth-actions {
        gap: 0.4rem;
    }

    .landing-top-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}