/* ===== Login / Register Modal ===== */
.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    animation: fadeIn var(--transition-fast);
}

.modal-backdrop.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background: var(--color-bg-card);
    border-radius: 12px;
    width: 420px;
    max-width: 90vw;
    padding: 40px 36px 30px;
    position: relative;
    animation: scaleIn var(--transition-normal);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 24px;
    height: 24px;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity var(--transition-fast);
    font-size: 20px;
    text-align: center;
    line-height: 24px;
}

.modal-close:hover {
    opacity: 0.8;
}

.modal-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 28px;
    text-align: center;
}

.form-group {
    margin-bottom: 18px;
    position: relative;
}

.form-group .input-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    height: 44px;
    padding: 0 14px;
    transition: border-color var(--transition-fast);
}

.form-group .input-wrapper:focus-within {
    border-color: var(--color-primary);
}

.form-group .input-wrapper .country-code {
    color: var(--color-text);
    font-size: 14px;
    padding-right: 10px;
    border-right: 1px solid var(--color-border);
    margin-right: 10px;
    flex-shrink: 0;
}

.form-group .input-wrapper input {
    flex: 1;
    height: 100%;
    font-size: 14px;
    color: var(--color-text);
}

.form-group .input-wrapper input::placeholder {
    color: var(--color-text-light);
}

.form-group .input-wrapper .eye-toggle {
    cursor: pointer;
    font-size: 16px;
    opacity: 0.4;
    flex-shrink: 0;
    user-select: none;
}

.form-group .input-wrapper .eye-toggle:hover {
    opacity: 0.7;
}

.form-group .input-wrapper .btn-verify {
    flex-shrink: 0;
    padding: 4px 12px;
    font-size: 13px;
    color: var(--color-primary);
    cursor: pointer;
    border-left: 1px solid var(--color-border);
    margin-left: 10px;
}

.form-group .input-wrapper .btn-verify.disabled {
    color: var(--color-text-light);
    cursor: default;
}

.form-error {
    font-size: 12px;
    color: var(--color-hot);
    margin-top: 6px;
    padding-left: 4px;
    display: none;
}

.form-error.show {
    display: block;
}

.form-agreement {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 20px 0;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.form-agreement .checkbox {
    width: 16px;
    height: 16px;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    flex-shrink: 0;
    margin-top: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.form-agreement .checkbox.checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.form-agreement .checkbox.checked::after {
    content: '\2713';
    color: #fff;
    font-size: 11px;
}

.form-agreement a {
    color: var(--color-primary);
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
}

.form-row .link {
    font-size: 14px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.form-row .link:hover {
    color: var(--color-primary);
}

.btn-submit {
    height: 44px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    background: #ccc;
    cursor: not-allowed;
    transition: all var(--transition-fast);
    width: 140px;
}

.btn-submit.active {
    background: var(--color-primary);
    cursor: pointer;
}

.btn-submit.active:hover {
    background: var(--color-primary-hover);
}